March 2021 - petsc-dev - mailman3.cels.anl.gov

Re: [petsc-dev] Case TS005062693 - XLF: ICE in xlfentry compiling a module with 358 subroutines
by Jacob Faibussowitsch 16 Mar '21

16 Mar '21

> Do both the manually generated petsc*mod.F90 and the automatically generated files need to be switched to not use use everywhere? It seems both might need to be changed. I changed petscvecmod, petscsysmod and petscmatmod, and whilst petscvecmod now compiled petscmatmod still crashed. Best regards, Jacob Faibussowitsch (Jacob Fai - booss - oh - vitch) Cell: (312) 694-3391 > On Mar 16, 2021, at 14:41, Barry Smith <bsmith(a)petsc.dev> wrote: > > > Satish, > > The import tIS might only work because the IS is already defined in the same file so the compiler can pull in just part of the use petscisdefdummy ? If the original module that contains the PetscRandom is in a different file then I don't see how the compiler can find and import PetscRandom. Is there a version of import where you also list the module (file) that the beast is from so the compiler can get it from that module? > > Barry > > Do both the manually generated petsc*mod.F90 and the automatically generated files need to be switched to not use use everywhere? Or is it enough just to fix the manual ones for now and not mess with sowing? > > > >> On Mar 16, 2021, at 2:34 PM, Satish Balay via petsc-dev <petsc-dev(a)mcs.anl.gov> wrote: >> >> On Tue, 16 Mar 2021, Satish Balay via petsc-dev wrote: >> >>> >>> >>> Tue, 16 Mar 2021, Jacob Faibussowitsch wrote: >>> >>>> Ok something I have gotten to work, but only doing things by hand in petscvecmod.F90: >>>> >>>> diff --git a/src/vec/f90-mod/petscvecmod.F90 b/src/vec/f90-mod/petscvecmod.F90 >>>> index 0c447156b9..ef3e2e2e55 100644 >>>> --- a/src/vec/f90-mod/petscvecmod.F90 >>>> +++ b/src/vec/f90-mod/petscvecmod.F90 >>>> module petscisdef >>>> use petscisdefdummy >>>> interface operator(.ne.) >>>> function isnotequal(A,B) >>>> - use petscisdefdummy >>>> + import tIS >>>> logical isnotequal >>>> type(tIS), intent(in) :: A,B >>> >>> generatefortranstubs.py has some hakey parsing code. I guess it can be updated to do this. >>> >>> i.e - look for 'type(tIS)' and add 'import tIS' >> >> I pushed changes to generatefortranstubs.py for this (to >> balay/reorg-f90-for-xlf branch). But there are errors. (I don't completely understand this issue yet) >> >>>>> >> FC arch-linux-c-debug/obj/sys/f90-mod/petscsysmod.o >> /home/balay/petsc/include/../src/sys/f90-mod/ftn-auto-interfaces/petscsys.h90:6:19: >> >> 6 | import PetscRandom >> | 1 >> Error: Cannot IMPORT ‘type’ from host scoping unit at (1) - does not exist. >> /home/balay/petsc/include/../src/sys/f90-mod/ftn-auto-interfaces/petscsys.h90:7:26: >> >> 7 | PetscRandom a ! PetscRandom >> | 1 >> Error: Derived type ‘tpetscrandom’ at (1) is being used before it is defined >> <<<< >> >> >> Satish >> >>> >>>> end function isnotequal >>>> >>>> This works for everything wrapped in a module which contains an interface block. For dangling functions the following works: >>> >>> Hm - maybe these are only on the custom side [and not ftn-auto side] >>> >>> Satish >>>> >>>> function isnotequal(A,B) >>>> - use petscisdefdummy >>>> + use petscisdef, only: tIs >>> >>> >>>> logical isnotequal >>>> type(tIS), intent(in) :: A,B >>>> isnotequal = (A%v .ne. B%v) >>>> end function isnotequal >>>> >>>> Do our fortran stub generators have any notion of types? Specifically types that originate from petsc? >>>> >>>> Best regards, >>>> >>>> Jacob Faibussowitsch >>>> (Jacob Fai - booss - oh - vitch) >>>> Cell: (312) 694-3391 >>>> >>>>> On Mar 16, 2021, at 11:11, Satish Balay <balay(a)mcs.anl.gov> wrote: >>>>> >>>>> On Tue, 16 Mar 2021, Jacob Faibussowitsch wrote: >>>>> >>>>>>> My [partial] change is in branch balay/reorg-f90-for-xlf >>>>>> >>>>>> Satish is this branch pushed? I’d like to send it to the ibm folks to see if it works for them as well. >>>>> >>>>> Sorry - pushed now. From what I remember - it didn't work. >>>>> >>>>> Satish >>>>> >>>>> >>>>>> They also added this extra follow up: >>>>>> >>>>>> The change we did in the source files is to replace all the "use pet*" statements in all the Interface blocks with IMPORT statement. >>>>>> >>>>>> The nature of this workaround is to reduce the number of symbols that the compiler have to create, which exceeded the limitation and caused ICE. >>>>>> >>>>>> Every USE statement in an interface block opens up the module symbol file and reads all the symbols from it and creates an entity for each symbol in compiler. This is unnecessary when the module already has the same USE statement in the module scope. Instead, users can use IMPORT statement to make the module symbols accessible inside interface face blocks. >>>>>> >>>>>> With the change, the compiler would only read the module symbol file once and create one set of symbols where the old code reads the module symbol files as many times as the number of the USE statements in Interface blocks and create that many sets of duplicate symbols. Replacing those USE statements with IMPORT statements also shortens the compile time significantly. >>>>>> >>>>>> Best regards, >>>>>> >>>>>> Jacob Faibussowitsch >>>>>> (Jacob Fai - booss - oh - vitch) >>>>>> Cell: (312) 694-3391 >>>>>> >>>>>>> On Mar 3, 2021, at 13:43, Satish Balay via petsc-dev <petsc-dev(a)mcs.anl.gov> wrote: >>>>>>> >>>>>>> The only change I can get working (i.e avoid compile errors) is to split petscvecmod.F90 into 2 source files - but I don't know if this will help with xlf.. >>>>>>> >>>>>>> My [partial] change is in branch balay/reorg-f90-for-xlf >>>>>>> >>>>>>> Satish >>>>>>> >>>>>>> On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: >>>>>>> >>>>>>>> On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: >>>>>>>> >>>>>>>>> Sure - once any change works locally [for gcc and xlf] >>>>>>>>> >>>>>>>>> When I try - I get a bunch of errors.. [yet to digest them.] >>>>>>>> >>>>>>>>>>>>> Can you please give the following source code workaround a try? >>>>>>>>>>>>> Since there is already "use petscvecdefdummy" at the module scope, one workaround might be to remove the unnecessary "use petscvecdefdummy" in vecnotequal and vecequals >>>>>>>>>>>>> and all similar procedures. >>>>>>>>>>>>> >>>>>>>>>>>>> For example, the test case has: >>>>>>>>>>>>> module petscvecdef >>>>>>>>>>>>> use petscvecdefdummy >>>>>>>>>>>>> ... >>>>>>>>>>>>> function vecnotequal(A,B) >>>>>>>>>>>>> use petscvecdefdummy >>>>>>>>>>>>> logical vecnotequal >>>>>>>>>>>>> type(tVec), intent(in) :: A,B >>>>>>>>>>>>> vecnotequal = (A%v .ne. B%v) >>>>>>>>>>>>> end function >>>>>>>> >>>>>>>> >>>>>>>> Ok - try this suggestion: >>>>>>>> >>>>>>>> diff --git a/src/vec/f90-mod/petscvecmod.F90 b/src/vec/f90-mod/petscvecmod.F90 >>>>>>>> index 0c447156b9..81968c7ca1 100644 >>>>>>>> --- a/src/vec/f90-mod/petscvecmod.F90 >>>>>>>> +++ b/src/vec/f90-mod/petscvecmod.F90 >>>>>>>> @@ -77,7 +77,6 @@ >>>>>>>> use petscvecdefdummy >>>>>>>> interface operator(.ne.) >>>>>>>> function vecnotequal(A,B) >>>>>>>> - use petscvecdefdummy >>>>>>>> logical vecnotequal >>>>>>>> type(tVec), intent(in) :: A,B >>>>>>>> end function >>>>>>>> >>>>>>>> >>>>>>>>>>>>> >>>>>>>> FC arch-linux-c-debug/obj/vec/f90-mod/petscvecmod.o >>>>>>>> /home/balay/petsc/src/vec/f90-mod/petscvecmod.F90:81:22: >>>>>>>> >>>>>>>> 81 | type(tVec), intent(in) :: A,B >>>>>>>> | 1 >>>>>>>> Error: Derived type ‘tvec’ at (1) is being used before it is defined >>>>>>>> /home/balay/petsc/include/../src/vec/f90-mod/ftn-auto-interfaces/petscis.h90:2:10: >>>>>>>> >>>>>>>> 2 | use petscvecdef >>>>>>>> | 1 >>>>>>>> Fatal Error: Cannot open module file ‘petscvecdef.mod’ for reading at (1): No such file or directory >>>>>>>> <<<<<< >>>>>>>> >>>>>>>> Satish >>>>>> >>>>>> >>>> >>>> >

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Re: [petsc-dev] Case TS005062693 - XLF: ICE in xlfentry compiling a module with 358 subroutines
by Barry Smith 16 Mar '21

16 Mar '21

Satish, The import tIS might only work because the IS is already defined in the same file so the compiler can pull in just part of the use petscisdefdummy ? If the original module that contains the PetscRandom is in a different file then I don't see how the compiler can find and import PetscRandom. Is there a version of import where you also list the module (file) that the beast is from so the compiler can get it from that module? Barry Do both the manually generated petsc*mod.F90 and the automatically generated files need to be switched to not use use everywhere? Or is it enough just to fix the manual ones for now and not mess with sowing? > On Mar 16, 2021, at 2:34 PM, Satish Balay via petsc-dev <petsc-dev(a)mcs.anl.gov> wrote: > > On Tue, 16 Mar 2021, Satish Balay via petsc-dev wrote: > >> >> >> Tue, 16 Mar 2021, Jacob Faibussowitsch wrote: >> >>> Ok something I have gotten to work, but only doing things by hand in petscvecmod.F90: >>> >>> diff --git a/src/vec/f90-mod/petscvecmod.F90 b/src/vec/f90-mod/petscvecmod.F90 >>> index 0c447156b9..ef3e2e2e55 100644 >>> --- a/src/vec/f90-mod/petscvecmod.F90 >>> +++ b/src/vec/f90-mod/petscvecmod.F90 >>> module petscisdef >>> use petscisdefdummy >>> interface operator(.ne.) >>> function isnotequal(A,B) >>> - use petscisdefdummy >>> + import tIS >>> logical isnotequal >>> type(tIS), intent(in) :: A,B >> >> generatefortranstubs.py has some hakey parsing code. I guess it can be updated to do this. >> >> i.e - look for 'type(tIS)' and add 'import tIS' > > I pushed changes to generatefortranstubs.py for this (to > balay/reorg-f90-for-xlf branch). But there are errors. (I don't completely understand this issue yet) > >>>> > FC arch-linux-c-debug/obj/sys/f90-mod/petscsysmod.o > /home/balay/petsc/include/../src/sys/f90-mod/ftn-auto-interfaces/petscsys.h90:6:19: > > 6 | import PetscRandom > | 1 > Error: Cannot IMPORT ‘type’ from host scoping unit at (1) - does not exist. > /home/balay/petsc/include/../src/sys/f90-mod/ftn-auto-interfaces/petscsys.h90:7:26: > > 7 | PetscRandom a ! PetscRandom > | 1 > Error: Derived type ‘tpetscrandom’ at (1) is being used before it is defined > <<<< > > > Satish > >> >>> end function isnotequal >>> >>> This works for everything wrapped in a module which contains an interface block. For dangling functions the following works: >> >> Hm - maybe these are only on the custom side [and not ftn-auto side] >> >> Satish >>> >>> function isnotequal(A,B) >>> - use petscisdefdummy >>> + use petscisdef, only: tIs >> >> >>> logical isnotequal >>> type(tIS), intent(in) :: A,B >>> isnotequal = (A%v .ne. B%v) >>> end function isnotequal >>> >>> Do our fortran stub generators have any notion of types? Specifically types that originate from petsc? >>> >>> Best regards, >>> >>> Jacob Faibussowitsch >>> (Jacob Fai - booss - oh - vitch) >>> Cell: (312) 694-3391 >>> >>>> On Mar 16, 2021, at 11:11, Satish Balay <balay(a)mcs.anl.gov> wrote: >>>> >>>> On Tue, 16 Mar 2021, Jacob Faibussowitsch wrote: >>>> >>>>>> My [partial] change is in branch balay/reorg-f90-for-xlf >>>>> >>>>> Satish is this branch pushed? I’d like to send it to the ibm folks to see if it works for them as well. >>>> >>>> Sorry - pushed now. From what I remember - it didn't work. >>>> >>>> Satish >>>> >>>> >>>>> They also added this extra follow up: >>>>> >>>>> The change we did in the source files is to replace all the "use pet*" statements in all the Interface blocks with IMPORT statement. >>>>> >>>>> The nature of this workaround is to reduce the number of symbols that the compiler have to create, which exceeded the limitation and caused ICE. >>>>> >>>>> Every USE statement in an interface block opens up the module symbol file and reads all the symbols from it and creates an entity for each symbol in compiler. This is unnecessary when the module already has the same USE statement in the module scope. Instead, users can use IMPORT statement to make the module symbols accessible inside interface face blocks. >>>>> >>>>> With the change, the compiler would only read the module symbol file once and create one set of symbols where the old code reads the module symbol files as many times as the number of the USE statements in Interface blocks and create that many sets of duplicate symbols. Replacing those USE statements with IMPORT statements also shortens the compile time significantly. >>>>> >>>>> Best regards, >>>>> >>>>> Jacob Faibussowitsch >>>>> (Jacob Fai - booss - oh - vitch) >>>>> Cell: (312) 694-3391 >>>>> >>>>>> On Mar 3, 2021, at 13:43, Satish Balay via petsc-dev <petsc-dev(a)mcs.anl.gov> wrote: >>>>>> >>>>>> The only change I can get working (i.e avoid compile errors) is to split petscvecmod.F90 into 2 source files - but I don't know if this will help with xlf.. >>>>>> >>>>>> My [partial] change is in branch balay/reorg-f90-for-xlf >>>>>> >>>>>> Satish >>>>>> >>>>>> On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: >>>>>> >>>>>>> On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: >>>>>>> >>>>>>>> Sure - once any change works locally [for gcc and xlf] >>>>>>>> >>>>>>>> When I try - I get a bunch of errors.. [yet to digest them.] >>>>>>> >>>>>>>>>>>> Can you please give the following source code workaround a try? >>>>>>>>>>>> Since there is already "use petscvecdefdummy" at the module scope, one workaround might be to remove the unnecessary "use petscvecdefdummy" in vecnotequal and vecequals >>>>>>>>>>>> and all similar procedures. >>>>>>>>>>>> >>>>>>>>>>>> For example, the test case has: >>>>>>>>>>>> module petscvecdef >>>>>>>>>>>> use petscvecdefdummy >>>>>>>>>>>> ... >>>>>>>>>>>> function vecnotequal(A,B) >>>>>>>>>>>> use petscvecdefdummy >>>>>>>>>>>> logical vecnotequal >>>>>>>>>>>> type(tVec), intent(in) :: A,B >>>>>>>>>>>> vecnotequal = (A%v .ne. B%v) >>>>>>>>>>>> end function >>>>>>> >>>>>>> >>>>>>> Ok - try this suggestion: >>>>>>> >>>>>>> diff --git a/src/vec/f90-mod/petscvecmod.F90 b/src/vec/f90-mod/petscvecmod.F90 >>>>>>> index 0c447156b9..81968c7ca1 100644 >>>>>>> --- a/src/vec/f90-mod/petscvecmod.F90 >>>>>>> +++ b/src/vec/f90-mod/petscvecmod.F90 >>>>>>> @@ -77,7 +77,6 @@ >>>>>>> use petscvecdefdummy >>>>>>> interface operator(.ne.) >>>>>>> function vecnotequal(A,B) >>>>>>> - use petscvecdefdummy >>>>>>> logical vecnotequal >>>>>>> type(tVec), intent(in) :: A,B >>>>>>> end function >>>>>>> >>>>>>> >>>>>>>>>>>> >>>>>>> FC arch-linux-c-debug/obj/vec/f90-mod/petscvecmod.o >>>>>>> /home/balay/petsc/src/vec/f90-mod/petscvecmod.F90:81:22: >>>>>>> >>>>>>> 81 | type(tVec), intent(in) :: A,B >>>>>>> | 1 >>>>>>> Error: Derived type ‘tvec’ at (1) is being used before it is defined >>>>>>> /home/balay/petsc/include/../src/vec/f90-mod/ftn-auto-interfaces/petscis.h90:2:10: >>>>>>> >>>>>>> 2 | use petscvecdef >>>>>>> | 1 >>>>>>> Fatal Error: Cannot open module file ‘petscvecdef.mod’ for reading at (1): No such file or directory >>>>>>> <<<<<< >>>>>>> >>>>>>> Satish >>>>> >>>>> >>> >>>

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Re: [petsc-dev] Case TS005062693 - XLF: ICE in xlfentry compiling a module with 358 subroutines
by Barry Smith 16 Mar '21

16 Mar '21

Jacob, You very well may be right, splitting may not be needed or relevant. I only advocated it since for Mat it did fix a VM gfortran memory issue. How closely the IBM compiler and gfortran issues are I do not know. My MR Mat split is read to to go into main. https://gitlab.com/petsc/petsc/-/merge_requests/3715 <https://gitlab.com/petsc/petsc/-/merge_requests/3715> The MPI one is still needing some babysitting, hopefully it can pass the CI and get into main soon. Both should be in main before starting to muck with changing the use stuff for the IBM compiler. Satish, does your Vec file split pass the CI? If so I think we should also get it into main before messing with the use for the IBM compiler. Who has access to the wonky IBM compiler? Is there any way to have general access so it can be added to the CI and we can maintain code that works with it? Or does someone need to fix things one at a time, first Vec, then Mat, then .... Barry > On Mar 16, 2021, at 2:14 PM, Satish Balay via petsc-dev <petsc-dev(a)mcs.anl.gov> wrote: > > On Tue, 16 Mar 2021, Matthew Knepley wrote: > >> On Tue, Mar 16, 2021 at 2:42 PM Jacob Faibussowitsch <jacob.fai(a)gmail.com> >> wrote: >> >>> To me the best solution is to first split the files when possible (it is >>> often not or just too painful) and then adding imports if needed. >>> >>> >>> I’m not sure I agree. Bear in mind my familiarity with fortran is very >>> limited, but to me the “use” statement is similar to #include <header> in C >>> or using namespace xxx in cpp. >>> >>> Our fortran interface is not optimal code atm, it’s as if we put a >>> "#include <petscvec.h>” before every Vec function in the C source >>> (assuming include guards are not used). Sure you can fix this by splitting >>> the vec src files in two, but at the end of the day that’s a bandaid >>> solution. I think I can get the import stuff to work reasonably well (a lot >>> of the infrastructure to capture types is already present in the current >>> generatefortranstubs). >>> >> >> If you can get this to work, we should definitely do it. Was there a >> question about getting it to work? > > Likely these additional changes should be done starting with Barry's split-up of sources. > > Satish > >> >> Thanks, >> >> Matt >> >> >>> Best regards, >>> >>> Jacob Faibussowitsch >>> (Jacob Fai - booss - oh - vitch) >>> Cell: (312) 694-3391 >>> >>> On Mar 16, 2021, at 12:56, Barry Smith <bsmith(a)petsc.dev> wrote: >>> >>> >>> Jacob, >>> >>> I split the mat definitions in the MR >>> https://gitlab.com/petsc/petsc/-/merge_requests/3696 and this reduced >>> memory requirements enough to get builds through on some VM that failed >>> previously ran out of memory (with gfortran). >>> >>> The petsc*mod.F90 files are all handwritten so it is ok to manually >>> change them with imports if that helps the IBM compiler. To me the best >>> solution is to first split the files when possible (it is often not or just >>> too painful) and then adding imports if needed. >>> >>> Note also the MR >>> https://gitlab.com/petsc/petsc/-/merge_requests/3715/diffs which may help >>> a great deal with the IBM compiler or not. >>> >>> Thanks >>> >>> Barry >>> >>> >>> >>> On Mar 16, 2021, at 11:47 AM, Jacob Faibussowitsch <jacob.fai(a)gmail.com> >>> wrote: >>> >>> Ok something I have gotten to work, but only doing things by hand in >>> petscvecmod.F90: >>> >>> diff --git a/src/vec/f90-mod/petscvecmod.F90 >>> b/src/vec/f90-mod/petscvecmod.F90 >>> index 0c447156b9..ef3e2e2e55 100644 >>> --- a/src/vec/f90-mod/petscvecmod.F90 >>> +++ b/src/vec/f90-mod/petscvecmod.F90 >>> module petscisdef >>> use petscisdefdummy >>> interface operator(.ne.) >>> function isnotequal(A,B) >>> - use petscisdefdummy >>> + import tIS >>> logical isnotequal >>> >>> type(tIS), intent(in) :: A,B >>> end function isnotequal >>> >>> This works for everything wrapped in a module which contains an interface >>> block. For dangling functions the following works: >>> >>> function isnotequal(A,B) >>> - use petscisdefdummy >>> + use petscisdef, only: tIs >>> logical isnotequal >>> type(tIS), intent(in) :: A,B >>> isnotequal = (A%v .ne. B%v) >>> end function isnotequal >>> >>> Do our fortran stub generators have any notion of types? Specifically >>> types that originate from petsc? >>> >>> Best regards, >>> >>> Jacob Faibussowitsch >>> (Jacob Fai - booss - oh - vitch) >>> Cell: (312) 694-3391 >>> >>> On Mar 16, 2021, at 11:11, Satish Balay <balay(a)mcs.anl.gov> wrote: >>> >>> On Tue, 16 Mar 2021, Jacob Faibussowitsch wrote: >>> >>> My [partial] change is in branch balay/reorg-f90-for-xlf >>> >>> >>> Satish is this branch pushed? I’d like to send it to the ibm folks to see >>> if it works for them as well. >>> >>> >>> Sorry - pushed now. From what I remember - it didn't work. >>> >>> Satish >>> >>> >>> They also added this extra follow up: >>> >>> The change we did in the source files is to replace all the "use pet*" >>> statements in all the Interface blocks with IMPORT statement. >>> >>> The nature of this workaround is to reduce the number of symbols that the >>> compiler have to create, which exceeded the limitation and caused ICE. >>> >>> Every USE statement in an interface block opens up the module symbol file >>> and reads all the symbols from it and creates an entity for each symbol in >>> compiler. This is unnecessary when the module already has the same USE >>> statement in the module scope. Instead, users can use IMPORT statement to >>> make the module symbols accessible inside interface face blocks. >>> >>> With the change, the compiler would only read the module symbol file once >>> and create one set of symbols where the old code reads the module symbol >>> files as many times as the number of the USE statements in Interface blocks >>> and create that many sets of duplicate symbols. Replacing those USE >>> statements with IMPORT statements also shortens the compile time >>> significantly. >>> >>> Best regards, >>> >>> Jacob Faibussowitsch >>> (Jacob Fai - booss - oh - vitch) >>> Cell: (312) 694-3391 >>> >>> On Mar 3, 2021, at 13:43, Satish Balay via petsc-dev < >>> petsc-dev(a)mcs.anl.gov> wrote: >>> >>> The only change I can get working (i.e avoid compile errors) is to split >>> petscvecmod.F90 into 2 source files - but I don't know if this will help >>> with xlf.. >>> >>> My [partial] change is in branch balay/reorg-f90-for-xlf >>> >>> Satish >>> >>> On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: >>> >>> On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: >>> >>> Sure - once any change works locally [for gcc and xlf] >>> >>> When I try - I get a bunch of errors.. [yet to digest them.] >>> >>> >>> Can you please give the following source code workaround a try? >>> Since there is already "use petscvecdefdummy" at the module scope, one >>> workaround might be to remove the unnecessary "use petscvecdefdummy" in >>> vecnotequal and vecequals >>> and all similar procedures. >>> >>> For example, the test case has: >>> module petscvecdef >>> use petscvecdefdummy >>> ... >>> function vecnotequal(A,B) >>> use petscvecdefdummy >>> logical vecnotequal >>> type(tVec), intent(in) :: A,B >>> vecnotequal = (A%v .ne. B%v) >>> end function >>> >>> >>> >>> Ok - try this suggestion: >>> >>> diff --git a/src/vec/f90-mod/petscvecmod.F90 >>> b/src/vec/f90-mod/petscvecmod.F90 >>> index 0c447156b9..81968c7ca1 100644 >>> --- a/src/vec/f90-mod/petscvecmod.F90 >>> +++ b/src/vec/f90-mod/petscvecmod.F90 >>> @@ -77,7 +77,6 @@ >>> use petscvecdefdummy >>> interface operator(.ne.) >>> function vecnotequal(A,B) >>> - use petscvecdefdummy >>> logical vecnotequal >>> type(tVec), intent(in) :: A,B >>> end function >>> >>> >>> >>> FC arch-linux-c-debug/obj/vec/f90-mod/petscvecmod.o >>> /home/balay/petsc/src/vec/f90-mod/petscvecmod.F90:81:22: >>> >>> 81 | type(tVec), intent(in) :: A,B >>> | 1 >>> Error: Derived type ‘tvec’ at (1) is being used before it is defined >>> >>> /home/balay/petsc/include/../src/vec/f90-mod/ftn-auto-interfaces/petscis.h90:2:10: >>> >>> 2 | use petscvecdef >>> | 1 >>> Fatal Error: Cannot open module file ‘petscvecdef.mod’ for reading at (1): >>> No such file or directory >>> <<<<<< >>> >>> Satish >>> >>> >>> >>> >>> >>> >>> >> >>

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Re: [petsc-dev] Case TS005062693 - XLF: ICE in xlfentry compiling a module with 358 subroutines
by Satish Balay 16 Mar '21

16 Mar '21

On Tue, 16 Mar 2021, Satish Balay via petsc-dev wrote: > > > Tue, 16 Mar 2021, Jacob Faibussowitsch wrote: > > > Ok something I have gotten to work, but only doing things by hand in petscvecmod.F90: > > > > diff --git a/src/vec/f90-mod/petscvecmod.F90 b/src/vec/f90-mod/petscvecmod.F90 > > index 0c447156b9..ef3e2e2e55 100644 > > --- a/src/vec/f90-mod/petscvecmod.F90 > > +++ b/src/vec/f90-mod/petscvecmod.F90 > > module petscisdef > > use petscisdefdummy > > interface operator(.ne.) > > function isnotequal(A,B) > > - use petscisdefdummy > > + import tIS > > logical isnotequal > > type(tIS), intent(in) :: A,B > > generatefortranstubs.py has some hakey parsing code. I guess it can be updated to do this. > > i.e - look for 'type(tIS)' and add 'import tIS' I pushed changes to generatefortranstubs.py for this (to balay/reorg-f90-for-xlf branch). But there are errors. (I don't completely understand this issue yet) >>> FC arch-linux-c-debug/obj/sys/f90-mod/petscsysmod.o /home/balay/petsc/include/../src/sys/f90-mod/ftn-auto-interfaces/petscsys.h90:6:19: 6 | import PetscRandom | 1 Error: Cannot IMPORT οΏ½typeοΏ½ from host scoping unit at (1) - does not exist. /home/balay/petsc/include/../src/sys/f90-mod/ftn-auto-interfaces/petscsys.h90:7:26: 7 | PetscRandom a ! PetscRandom | 1 Error: Derived type οΏ½tpetscrandomοΏ½ at (1) is being used before it is defined <<<< Satish > > > end function isnotequal > > > > This works for everything wrapped in a module which contains an interface block. For dangling functions the following works: > > Hm - maybe these are only on the custom side [and not ftn-auto side] > > Satish > > > > function isnotequal(A,B) > > - use petscisdefdummy > > + use petscisdef, only: tIs > > > > logical isnotequal > > type(tIS), intent(in) :: A,B > > isnotequal = (A%v .ne. B%v) > > end function isnotequal > > > > Do our fortran stub generators have any notion of types? Specifically types that originate from petsc? > > > > Best regards, > > > > Jacob Faibussowitsch > > (Jacob Fai - booss - oh - vitch) > > Cell: (312) 694-3391 > > > > > On Mar 16, 2021, at 11:11, Satish Balay <balay(a)mcs.anl.gov> wrote: > > > > > > On Tue, 16 Mar 2021, Jacob Faibussowitsch wrote: > > > > > >>> My [partial] change is in branch balay/reorg-f90-for-xlf > > >> > > >> Satish is this branch pushed? IοΏ½d like to send it to the ibm folks to see if it works for them as well. > > > > > > Sorry - pushed now. From what I remember - it didn't work. > > > > > > Satish > > > > > > > > >> They also added this extra follow up: > > >> > > >> The change we did in the source files is to replace all the "use pet*" statements in all the Interface blocks with IMPORT statement. > > >> > > >> The nature of this workaround is to reduce the number of symbols that the compiler have to create, which exceeded the limitation and caused ICE. > > >> > > >> Every USE statement in an interface block opens up the module symbol file and reads all the symbols from it and creates an entity for each symbol in compiler. This is unnecessary when the module already has the same USE statement in the module scope. Instead, users can use IMPORT statement to make the module symbols accessible inside interface face blocks. > > >> > > >> With the change, the compiler would only read the module symbol file once and create one set of symbols where the old code reads the module symbol files as many times as the number of the USE statements in Interface blocks and create that many sets of duplicate symbols. Replacing those USE statements with IMPORT statements also shortens the compile time significantly. > > >> > > >> Best regards, > > >> > > >> Jacob Faibussowitsch > > >> (Jacob Fai - booss - oh - vitch) > > >> Cell: (312) 694-3391 > > >> > > >>> On Mar 3, 2021, at 13:43, Satish Balay via petsc-dev <petsc-dev(a)mcs.anl.gov> wrote: > > >>> > > >>> The only change I can get working (i.e avoid compile errors) is to split petscvecmod.F90 into 2 source files - but I don't know if this will help with xlf.. > > >>> > > >>> My [partial] change is in branch balay/reorg-f90-for-xlf > > >>> > > >>> Satish > > >>> > > >>> On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: > > >>> > > >>>> On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: > > >>>> > > >>>>> Sure - once any change works locally [for gcc and xlf] > > >>>>> > > >>>>> When I try - I get a bunch of errors.. [yet to digest them.] > > >>>> > > >>>>>>>>> Can you please give the following source code workaround a try? > > >>>>>>>>> Since there is already "use petscvecdefdummy" at the module scope, one workaround might be to remove the unnecessary "use petscvecdefdummy" in vecnotequal and vecequals > > >>>>>>>>> and all similar procedures. > > >>>>>>>>> > > >>>>>>>>> For example, the test case has: > > >>>>>>>>> module petscvecdef > > >>>>>>>>> use petscvecdefdummy > > >>>>>>>>> ... > > >>>>>>>>> function vecnotequal(A,B) > > >>>>>>>>> use petscvecdefdummy > > >>>>>>>>> logical vecnotequal > > >>>>>>>>> type(tVec), intent(in) :: A,B > > >>>>>>>>> vecnotequal = (A%v .ne. B%v) > > >>>>>>>>> end function > > >>>> > > >>>> > > >>>> Ok - try this suggestion: > > >>>> > > >>>> diff --git a/src/vec/f90-mod/petscvecmod.F90 b/src/vec/f90-mod/petscvecmod.F90 > > >>>> index 0c447156b9..81968c7ca1 100644 > > >>>> --- a/src/vec/f90-mod/petscvecmod.F90 > > >>>> +++ b/src/vec/f90-mod/petscvecmod.F90 > > >>>> @@ -77,7 +77,6 @@ > > >>>> use petscvecdefdummy > > >>>> interface operator(.ne.) > > >>>> function vecnotequal(A,B) > > >>>> - use petscvecdefdummy > > >>>> logical vecnotequal > > >>>> type(tVec), intent(in) :: A,B > > >>>> end function > > >>>> > > >>>> > > >>>>>>>>> > > >>>> FC arch-linux-c-debug/obj/vec/f90-mod/petscvecmod.o > > >>>> /home/balay/petsc/src/vec/f90-mod/petscvecmod.F90:81:22: > > >>>> > > >>>> 81 | type(tVec), intent(in) :: A,B > > >>>> | 1 > > >>>> Error: Derived type οΏ½tvecοΏ½ at (1) is being used before it is defined > > >>>> /home/balay/petsc/include/../src/vec/f90-mod/ftn-auto-interfaces/petscis.h90:2:10: > > >>>> > > >>>> 2 | use petscvecdef > > >>>> | 1 > > >>>> Fatal Error: Cannot open module file οΏ½petscvecdef.modοΏ½ for reading at (1): No such file or directory > > >>>> <<<<<< > > >>>> > > >>>> Satish > > >> > > >> > > > > >

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Re: [petsc-dev] Case TS005062693 - XLF: ICE in xlfentry compiling a module with 358 subroutines
by Satish Balay 16 Mar '21

16 Mar '21

On Tue, 16 Mar 2021, Matthew Knepley wrote: > On Tue, Mar 16, 2021 at 2:42 PM Jacob Faibussowitsch <jacob.fai(a)gmail.com> > wrote: > > > To me the best solution is to first split the files when possible (it is > > often not or just too painful) and then adding imports if needed. > > > > > > I’m not sure I agree. Bear in mind my familiarity with fortran is very > > limited, but to me the “use” statement is similar to #include <header> in C > > or using namespace xxx in cpp. > > > > Our fortran interface is not optimal code atm, it’s as if we put a > > "#include <petscvec.h>” before every Vec function in the C source > > (assuming include guards are not used). Sure you can fix this by splitting > > the vec src files in two, but at the end of the day that’s a bandaid > > solution. I think I can get the import stuff to work reasonably well (a lot > > of the infrastructure to capture types is already present in the current > > generatefortranstubs). > > > > If you can get this to work, we should definitely do it. Was there a > question about getting it to work? Likely these additional changes should be done starting with Barry's split-up of sources. Satish > > Thanks, > > Matt > > > > Best regards, > > > > Jacob Faibussowitsch > > (Jacob Fai - booss - oh - vitch) > > Cell: (312) 694-3391 > > > > On Mar 16, 2021, at 12:56, Barry Smith <bsmith(a)petsc.dev> wrote: > > > > > > Jacob, > > > > I split the mat definitions in the MR > > https://gitlab.com/petsc/petsc/-/merge_requests/3696 and this reduced > > memory requirements enough to get builds through on some VM that failed > > previously ran out of memory (with gfortran). > > > > The petsc*mod.F90 files are all handwritten so it is ok to manually > > change them with imports if that helps the IBM compiler. To me the best > > solution is to first split the files when possible (it is often not or just > > too painful) and then adding imports if needed. > > > > Note also the MR > > https://gitlab.com/petsc/petsc/-/merge_requests/3715/diffs which may help > > a great deal with the IBM compiler or not. > > > > Thanks > > > > Barry > > > > > > > > On Mar 16, 2021, at 11:47 AM, Jacob Faibussowitsch <jacob.fai(a)gmail.com> > > wrote: > > > > Ok something I have gotten to work, but only doing things by hand in > > petscvecmod.F90: > > > > diff --git a/src/vec/f90-mod/petscvecmod.F90 > > b/src/vec/f90-mod/petscvecmod.F90 > > index 0c447156b9..ef3e2e2e55 100644 > > --- a/src/vec/f90-mod/petscvecmod.F90 > > +++ b/src/vec/f90-mod/petscvecmod.F90 > > module petscisdef > > use petscisdefdummy > > interface operator(.ne.) > > function isnotequal(A,B) > > - use petscisdefdummy > > + import tIS > > logical isnotequal > > > > type(tIS), intent(in) :: A,B > > end function isnotequal > > > > This works for everything wrapped in a module which contains an interface > > block. For dangling functions the following works: > > > > function isnotequal(A,B) > > - use petscisdefdummy > > + use petscisdef, only: tIs > > logical isnotequal > > type(tIS), intent(in) :: A,B > > isnotequal = (A%v .ne. B%v) > > end function isnotequal > > > > Do our fortran stub generators have any notion of types? Specifically > > types that originate from petsc? > > > > Best regards, > > > > Jacob Faibussowitsch > > (Jacob Fai - booss - oh - vitch) > > Cell: (312) 694-3391 > > > > On Mar 16, 2021, at 11:11, Satish Balay <balay(a)mcs.anl.gov> wrote: > > > > On Tue, 16 Mar 2021, Jacob Faibussowitsch wrote: > > > > My [partial] change is in branch balay/reorg-f90-for-xlf > > > > > > Satish is this branch pushed? I’d like to send it to the ibm folks to see > > if it works for them as well. > > > > > > Sorry - pushed now. From what I remember - it didn't work. > > > > Satish > > > > > > They also added this extra follow up: > > > > The change we did in the source files is to replace all the "use pet*" > > statements in all the Interface blocks with IMPORT statement. > > > > The nature of this workaround is to reduce the number of symbols that the > > compiler have to create, which exceeded the limitation and caused ICE. > > > > Every USE statement in an interface block opens up the module symbol file > > and reads all the symbols from it and creates an entity for each symbol in > > compiler. This is unnecessary when the module already has the same USE > > statement in the module scope. Instead, users can use IMPORT statement to > > make the module symbols accessible inside interface face blocks. > > > > With the change, the compiler would only read the module symbol file once > > and create one set of symbols where the old code reads the module symbol > > files as many times as the number of the USE statements in Interface blocks > > and create that many sets of duplicate symbols. Replacing those USE > > statements with IMPORT statements also shortens the compile time > > significantly. > > > > Best regards, > > > > Jacob Faibussowitsch > > (Jacob Fai - booss - oh - vitch) > > Cell: (312) 694-3391 > > > > On Mar 3, 2021, at 13:43, Satish Balay via petsc-dev < > > petsc-dev(a)mcs.anl.gov> wrote: > > > > The only change I can get working (i.e avoid compile errors) is to split > > petscvecmod.F90 into 2 source files - but I don't know if this will help > > with xlf.. > > > > My [partial] change is in branch balay/reorg-f90-for-xlf > > > > Satish > > > > On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: > > > > On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: > > > > Sure - once any change works locally [for gcc and xlf] > > > > When I try - I get a bunch of errors.. [yet to digest them.] > > > > > > Can you please give the following source code workaround a try? > > Since there is already "use petscvecdefdummy" at the module scope, one > > workaround might be to remove the unnecessary "use petscvecdefdummy" in > > vecnotequal and vecequals > > and all similar procedures. > > > > For example, the test case has: > > module petscvecdef > > use petscvecdefdummy > > ... > > function vecnotequal(A,B) > > use petscvecdefdummy > > logical vecnotequal > > type(tVec), intent(in) :: A,B > > vecnotequal = (A%v .ne. B%v) > > end function > > > > > > > > Ok - try this suggestion: > > > > diff --git a/src/vec/f90-mod/petscvecmod.F90 > > b/src/vec/f90-mod/petscvecmod.F90 > > index 0c447156b9..81968c7ca1 100644 > > --- a/src/vec/f90-mod/petscvecmod.F90 > > +++ b/src/vec/f90-mod/petscvecmod.F90 > > @@ -77,7 +77,6 @@ > > use petscvecdefdummy > > interface operator(.ne.) > > function vecnotequal(A,B) > > - use petscvecdefdummy > > logical vecnotequal > > type(tVec), intent(in) :: A,B > > end function > > > > > > > > FC arch-linux-c-debug/obj/vec/f90-mod/petscvecmod.o > > /home/balay/petsc/src/vec/f90-mod/petscvecmod.F90:81:22: > > > > 81 | type(tVec), intent(in) :: A,B > > | 1 > > Error: Derived type ‘tvec’ at (1) is being used before it is defined > > > > /home/balay/petsc/include/../src/vec/f90-mod/ftn-auto-interfaces/petscis.h90:2:10: > > > > 2 | use petscvecdef > > | 1 > > Fatal Error: Cannot open module file ‘petscvecdef.mod’ for reading at (1): > > No such file or directory > > <<<<<< > > > > Satish > > > > > > > > > > > > > > > >

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Re: [petsc-dev] Case TS005062693 - XLF: ICE in xlfentry compiling a module with 358 subroutines
by Matthew Knepley 16 Mar '21

16 Mar '21

On Tue, Mar 16, 2021 at 2:42 PM Jacob Faibussowitsch <jacob.fai(a)gmail.com> wrote: > To me the best solution is to first split the files when possible (it is > often not or just too painful) and then adding imports if needed. > > > I’m not sure I agree. Bear in mind my familiarity with fortran is very > limited, but to me the “use” statement is similar to #include <header> in C > or using namespace xxx in cpp. > > Our fortran interface is not optimal code atm, it’s as if we put a > "#include <petscvec.h>” before every Vec function in the C source > (assuming include guards are not used). Sure you can fix this by splitting > the vec src files in two, but at the end of the day that’s a bandaid > solution. I think I can get the import stuff to work reasonably well (a lot > of the infrastructure to capture types is already present in the current > generatefortranstubs). > If you can get this to work, we should definitely do it. Was there a question about getting it to work? Thanks, Matt > Best regards, > > Jacob Faibussowitsch > (Jacob Fai - booss - oh - vitch) > Cell: (312) 694-3391 > > On Mar 16, 2021, at 12:56, Barry Smith <bsmith(a)petsc.dev> wrote: > > > Jacob, > > I split the mat definitions in the MR > https://gitlab.com/petsc/petsc/-/merge_requests/3696 and this reduced > memory requirements enough to get builds through on some VM that failed > previously ran out of memory (with gfortran). > > The petsc*mod.F90 files are all handwritten so it is ok to manually > change them with imports if that helps the IBM compiler. To me the best > solution is to first split the files when possible (it is often not or just > too painful) and then adding imports if needed. > > Note also the MR > https://gitlab.com/petsc/petsc/-/merge_requests/3715/diffs which may help > a great deal with the IBM compiler or not. > > Thanks > > Barry > > > > On Mar 16, 2021, at 11:47 AM, Jacob Faibussowitsch <jacob.fai(a)gmail.com> > wrote: > > Ok something I have gotten to work, but only doing things by hand in > petscvecmod.F90: > > diff --git a/src/vec/f90-mod/petscvecmod.F90 > b/src/vec/f90-mod/petscvecmod.F90 > index 0c447156b9..ef3e2e2e55 100644 > --- a/src/vec/f90-mod/petscvecmod.F90 > +++ b/src/vec/f90-mod/petscvecmod.F90 > module petscisdef > use petscisdefdummy > interface operator(.ne.) > function isnotequal(A,B) > - use petscisdefdummy > + import tIS > logical isnotequal > > type(tIS), intent(in) :: A,B > end function isnotequal > > This works for everything wrapped in a module which contains an interface > block. For dangling functions the following works: > > function isnotequal(A,B) > - use petscisdefdummy > + use petscisdef, only: tIs > logical isnotequal > type(tIS), intent(in) :: A,B > isnotequal = (A%v .ne. B%v) > end function isnotequal > > Do our fortran stub generators have any notion of types? Specifically > types that originate from petsc? > > Best regards, > > Jacob Faibussowitsch > (Jacob Fai - booss - oh - vitch) > Cell: (312) 694-3391 > > On Mar 16, 2021, at 11:11, Satish Balay <balay(a)mcs.anl.gov> wrote: > > On Tue, 16 Mar 2021, Jacob Faibussowitsch wrote: > > My [partial] change is in branch balay/reorg-f90-for-xlf > > > Satish is this branch pushed? I’d like to send it to the ibm folks to see > if it works for them as well. > > > Sorry - pushed now. From what I remember - it didn't work. > > Satish > > > They also added this extra follow up: > > The change we did in the source files is to replace all the "use pet*" > statements in all the Interface blocks with IMPORT statement. > > The nature of this workaround is to reduce the number of symbols that the > compiler have to create, which exceeded the limitation and caused ICE. > > Every USE statement in an interface block opens up the module symbol file > and reads all the symbols from it and creates an entity for each symbol in > compiler. This is unnecessary when the module already has the same USE > statement in the module scope. Instead, users can use IMPORT statement to > make the module symbols accessible inside interface face blocks. > > With the change, the compiler would only read the module symbol file once > and create one set of symbols where the old code reads the module symbol > files as many times as the number of the USE statements in Interface blocks > and create that many sets of duplicate symbols. Replacing those USE > statements with IMPORT statements also shortens the compile time > significantly. > > Best regards, > > Jacob Faibussowitsch > (Jacob Fai - booss - oh - vitch) > Cell: (312) 694-3391 > > On Mar 3, 2021, at 13:43, Satish Balay via petsc-dev < > petsc-dev(a)mcs.anl.gov> wrote: > > The only change I can get working (i.e avoid compile errors) is to split > petscvecmod.F90 into 2 source files - but I don't know if this will help > with xlf.. > > My [partial] change is in branch balay/reorg-f90-for-xlf > > Satish > > On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: > > On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: > > Sure - once any change works locally [for gcc and xlf] > > When I try - I get a bunch of errors.. [yet to digest them.] > > > Can you please give the following source code workaround a try? > Since there is already "use petscvecdefdummy" at the module scope, one > workaround might be to remove the unnecessary "use petscvecdefdummy" in > vecnotequal and vecequals > and all similar procedures. > > For example, the test case has: > module petscvecdef > use petscvecdefdummy > ... > function vecnotequal(A,B) > use petscvecdefdummy > logical vecnotequal > type(tVec), intent(in) :: A,B > vecnotequal = (A%v .ne. B%v) > end function > > > > Ok - try this suggestion: > > diff --git a/src/vec/f90-mod/petscvecmod.F90 > b/src/vec/f90-mod/petscvecmod.F90 > index 0c447156b9..81968c7ca1 100644 > --- a/src/vec/f90-mod/petscvecmod.F90 > +++ b/src/vec/f90-mod/petscvecmod.F90 > @@ -77,7 +77,6 @@ > use petscvecdefdummy > interface operator(.ne.) > function vecnotequal(A,B) > - use petscvecdefdummy > logical vecnotequal > type(tVec), intent(in) :: A,B > end function > > > > FC arch-linux-c-debug/obj/vec/f90-mod/petscvecmod.o > /home/balay/petsc/src/vec/f90-mod/petscvecmod.F90:81:22: > > 81 | type(tVec), intent(in) :: A,B > | 1 > Error: Derived type ‘tvec’ at (1) is being used before it is defined > > /home/balay/petsc/include/../src/vec/f90-mod/ftn-auto-interfaces/petscis.h90:2:10: > > 2 | use petscvecdef > | 1 > Fatal Error: Cannot open module file ‘petscvecdef.mod’ for reading at (1): > No such file or directory > <<<<<< > > Satish > > > > > > > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>

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Re: [petsc-dev] Case TS005062693 - XLF: ICE in xlfentry compiling a module with 358 subroutines
by Jacob Faibussowitsch 16 Mar '21

16 Mar '21

> To me the best solution is to first split the files when possible (it is often not or just too painful) and then adding imports if needed. I’m not sure I agree. Bear in mind my familiarity with fortran is very limited, but to me the “use” statement is similar to #include <header> in C or using namespace xxx in cpp. Our fortran interface is not optimal code atm, it’s as if we put a "#include <petscvec.h>” before every Vec function in the C source (assuming include guards are not used). Sure you can fix this by splitting the vec src files in two, but at the end of the day that’s a bandaid solution. I think I can get the import stuff to work reasonably well (a lot of the infrastructure to capture types is already present in the current generatefortranstubs). Best regards, Jacob Faibussowitsch (Jacob Fai - booss - oh - vitch) Cell: (312) 694-3391 > On Mar 16, 2021, at 12:56, Barry Smith <bsmith(a)petsc.dev> wrote: > > > Jacob, > > I split the mat definitions in the MR https://gitlab.com/petsc/petsc/-/merge_requests/3696 <https://gitlab.com/petsc/petsc/-/merge_requests/3696> and this reduced memory requirements enough to get builds through on some VM that failed previously ran out of memory (with gfortran). > > The petsc*mod.F90 files are all handwritten so it is ok to manually change them with imports if that helps the IBM compiler. To me the best solution is to first split the files when possible (it is often not or just too painful) and then adding imports if needed. > > Note also the MR https://gitlab.com/petsc/petsc/-/merge_requests/3715/diffs <https://gitlab.com/petsc/petsc/-/merge_requests/3715/diffs> which may help a great deal with the IBM compiler or not. > > Thanks > > Barry > > > >> On Mar 16, 2021, at 11:47 AM, Jacob Faibussowitsch <jacob.fai(a)gmail.com <mailto:[email protected]>> wrote: >> >> Ok something I have gotten to work, but only doing things by hand in petscvecmod.F90: >> >> diff --git a/src/vec/f90-mod/petscvecmod.F90 b/src/vec/f90-mod/petscvecmod.F90 >> index 0c447156b9..ef3e2e2e55 100644 >> --- a/src/vec/f90-mod/petscvecmod.F90 >> +++ b/src/vec/f90-mod/petscvecmod.F90 >> module petscisdef >> use petscisdefdummy >> interface operator(.ne.) >> function isnotequal(A,B) >> - use petscisdefdummy >> + import tIS >> logical isnotequal >> type(tIS), intent(in) :: A,B >> end function isnotequal >> >> This works for everything wrapped in a module which contains an interface block. For dangling functions the following works: >> >> function isnotequal(A,B) >> - use petscisdefdummy >> + use petscisdef, only: tIs >> logical isnotequal >> type(tIS), intent(in) :: A,B >> isnotequal = (A%v .ne. B%v) >> end function isnotequal >> >> Do our fortran stub generators have any notion of types? Specifically types that originate from petsc? >> >> Best regards, >> >> Jacob Faibussowitsch >> (Jacob Fai - booss - oh - vitch) >> Cell: (312) 694-3391 >> >>> On Mar 16, 2021, at 11:11, Satish Balay <balay(a)mcs.anl.gov <mailto:[email protected]>> wrote: >>> >>> On Tue, 16 Mar 2021, Jacob Faibussowitsch wrote: >>> >>>>> My [partial] change is in branch balay/reorg-f90-for-xlf >>>> >>>> Satish is this branch pushed? I’d like to send it to the ibm folks to see if it works for them as well. >>> >>> Sorry - pushed now. From what I remember - it didn't work. >>> >>> Satish >>> >>> >>>> They also added this extra follow up: >>>> >>>> The change we did in the source files is to replace all the "use pet*" statements in all the Interface blocks with IMPORT statement. >>>> >>>> The nature of this workaround is to reduce the number of symbols that the compiler have to create, which exceeded the limitation and caused ICE. >>>> >>>> Every USE statement in an interface block opens up the module symbol file and reads all the symbols from it and creates an entity for each symbol in compiler. This is unnecessary when the module already has the same USE statement in the module scope. Instead, users can use IMPORT statement to make the module symbols accessible inside interface face blocks. >>>> >>>> With the change, the compiler would only read the module symbol file once and create one set of symbols where the old code reads the module symbol files as many times as the number of the USE statements in Interface blocks and create that many sets of duplicate symbols. Replacing those USE statements with IMPORT statements also shortens the compile time significantly. >>>> >>>> Best regards, >>>> >>>> Jacob Faibussowitsch >>>> (Jacob Fai - booss - oh - vitch) >>>> Cell: (312) 694-3391 >>>> >>>>> On Mar 3, 2021, at 13:43, Satish Balay via petsc-dev <petsc-dev(a)mcs.anl.gov <mailto:[email protected]>> wrote: >>>>> >>>>> The only change I can get working (i.e avoid compile errors) is to split petscvecmod.F90 into 2 source files - but I don't know if this will help with xlf.. >>>>> >>>>> My [partial] change is in branch balay/reorg-f90-for-xlf >>>>> >>>>> Satish >>>>> >>>>> On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: >>>>> >>>>>> On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: >>>>>> >>>>>>> Sure - once any change works locally [for gcc and xlf] >>>>>>> >>>>>>> When I try - I get a bunch of errors.. [yet to digest them.] >>>>>> >>>>>>>>>>> Can you please give the following source code workaround a try? >>>>>>>>>>> Since there is already "use petscvecdefdummy" at the module scope, one workaround might be to remove the unnecessary "use petscvecdefdummy" in vecnotequal and vecequals >>>>>>>>>>> and all similar procedures. >>>>>>>>>>> >>>>>>>>>>> For example, the test case has: >>>>>>>>>>> module petscvecdef >>>>>>>>>>> use petscvecdefdummy >>>>>>>>>>> ... >>>>>>>>>>> function vecnotequal(A,B) >>>>>>>>>>> use petscvecdefdummy >>>>>>>>>>> logical vecnotequal >>>>>>>>>>> type(tVec), intent(in) :: A,B >>>>>>>>>>> vecnotequal = (A%v .ne. B%v) >>>>>>>>>>> end function >>>>>> >>>>>> >>>>>> Ok - try this suggestion: >>>>>> >>>>>> diff --git a/src/vec/f90-mod/petscvecmod.F90 b/src/vec/f90-mod/petscvecmod.F90 >>>>>> index 0c447156b9..81968c7ca1 100644 >>>>>> --- a/src/vec/f90-mod/petscvecmod.F90 >>>>>> +++ b/src/vec/f90-mod/petscvecmod.F90 >>>>>> @@ -77,7 +77,6 @@ >>>>>> use petscvecdefdummy >>>>>> interface operator(.ne.) >>>>>> function vecnotequal(A,B) >>>>>> - use petscvecdefdummy >>>>>> logical vecnotequal >>>>>> type(tVec), intent(in) :: A,B >>>>>> end function >>>>>> >>>>>> >>>>>>>>>>> >>>>>> FC arch-linux-c-debug/obj/vec/f90-mod/petscvecmod.o >>>>>> /home/balay/petsc/src/vec/f90-mod/petscvecmod.F90:81:22: >>>>>> >>>>>> 81 | type(tVec), intent(in) :: A,B >>>>>> | 1 >>>>>> Error: Derived type ‘tvec’ at (1) is being used before it is defined >>>>>> /home/balay/petsc/include/../src/vec/f90-mod/ftn-auto-interfaces/petscis.h90:2:10: >>>>>> >>>>>> 2 | use petscvecdef >>>>>> | 1 >>>>>> Fatal Error: Cannot open module file ‘petscvecdef.mod’ for reading at (1): No such file or directory >>>>>> <<<<<< >>>>>> >>>>>> Satish >>>> >>>> >> >

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Re: [petsc-dev] Case TS005062693 - XLF: ICE in xlfentry compiling a module with 358 subroutines
by Satish Balay 16 Mar '21

16 Mar '21

Tue, 16 Mar 2021, Jacob Faibussowitsch wrote: > Ok something I have gotten to work, but only doing things by hand in petscvecmod.F90: > > diff --git a/src/vec/f90-mod/petscvecmod.F90 b/src/vec/f90-mod/petscvecmod.F90 > index 0c447156b9..ef3e2e2e55 100644 > --- a/src/vec/f90-mod/petscvecmod.F90 > +++ b/src/vec/f90-mod/petscvecmod.F90 > module petscisdef > use petscisdefdummy > interface operator(.ne.) > function isnotequal(A,B) > - use petscisdefdummy > + import tIS > logical isnotequal > type(tIS), intent(in) :: A,B generatefortranstubs.py has some hakey parsing code. I guess it can be updated to do this. i.e - look for 'type(tIS)' and add 'import tIS' > end function isnotequal > > This works for everything wrapped in a module which contains an interface block. For dangling functions the following works: Hm - maybe these are only on the custom side [and not ftn-auto side] Satish > > function isnotequal(A,B) > - use petscisdefdummy > + use petscisdef, only: tIs > logical isnotequal > type(tIS), intent(in) :: A,B > isnotequal = (A%v .ne. B%v) > end function isnotequal > > Do our fortran stub generators have any notion of types? Specifically types that originate from petsc? > > Best regards, > > Jacob Faibussowitsch > (Jacob Fai - booss - oh - vitch) > Cell: (312) 694-3391 > > > On Mar 16, 2021, at 11:11, Satish Balay <balay(a)mcs.anl.gov> wrote: > > > > On Tue, 16 Mar 2021, Jacob Faibussowitsch wrote: > > > >>> My [partial] change is in branch balay/reorg-f90-for-xlf > >> > >> Satish is this branch pushed? I’d like to send it to the ibm folks to see if it works for them as well. > > > > Sorry - pushed now. From what I remember - it didn't work. > > > > Satish > > > > > >> They also added this extra follow up: > >> > >> The change we did in the source files is to replace all the "use pet*" statements in all the Interface blocks with IMPORT statement. > >> > >> The nature of this workaround is to reduce the number of symbols that the compiler have to create, which exceeded the limitation and caused ICE. > >> > >> Every USE statement in an interface block opens up the module symbol file and reads all the symbols from it and creates an entity for each symbol in compiler. This is unnecessary when the module already has the same USE statement in the module scope. Instead, users can use IMPORT statement to make the module symbols accessible inside interface face blocks. > >> > >> With the change, the compiler would only read the module symbol file once and create one set of symbols where the old code reads the module symbol files as many times as the number of the USE statements in Interface blocks and create that many sets of duplicate symbols. Replacing those USE statements with IMPORT statements also shortens the compile time significantly. > >> > >> Best regards, > >> > >> Jacob Faibussowitsch > >> (Jacob Fai - booss - oh - vitch) > >> Cell: (312) 694-3391 > >> > >>> On Mar 3, 2021, at 13:43, Satish Balay via petsc-dev <petsc-dev(a)mcs.anl.gov> wrote: > >>> > >>> The only change I can get working (i.e avoid compile errors) is to split petscvecmod.F90 into 2 source files - but I don't know if this will help with xlf.. > >>> > >>> My [partial] change is in branch balay/reorg-f90-for-xlf > >>> > >>> Satish > >>> > >>> On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: > >>> > >>>> On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: > >>>> > >>>>> Sure - once any change works locally [for gcc and xlf] > >>>>> > >>>>> When I try - I get a bunch of errors.. [yet to digest them.] > >>>> > >>>>>>>>> Can you please give the following source code workaround a try? > >>>>>>>>> Since there is already "use petscvecdefdummy" at the module scope, one workaround might be to remove the unnecessary "use petscvecdefdummy" in vecnotequal and vecequals > >>>>>>>>> and all similar procedures. > >>>>>>>>> > >>>>>>>>> For example, the test case has: > >>>>>>>>> module petscvecdef > >>>>>>>>> use petscvecdefdummy > >>>>>>>>> ... > >>>>>>>>> function vecnotequal(A,B) > >>>>>>>>> use petscvecdefdummy > >>>>>>>>> logical vecnotequal > >>>>>>>>> type(tVec), intent(in) :: A,B > >>>>>>>>> vecnotequal = (A%v .ne. B%v) > >>>>>>>>> end function > >>>> > >>>> > >>>> Ok - try this suggestion: > >>>> > >>>> diff --git a/src/vec/f90-mod/petscvecmod.F90 b/src/vec/f90-mod/petscvecmod.F90 > >>>> index 0c447156b9..81968c7ca1 100644 > >>>> --- a/src/vec/f90-mod/petscvecmod.F90 > >>>> +++ b/src/vec/f90-mod/petscvecmod.F90 > >>>> @@ -77,7 +77,6 @@ > >>>> use petscvecdefdummy > >>>> interface operator(.ne.) > >>>> function vecnotequal(A,B) > >>>> - use petscvecdefdummy > >>>> logical vecnotequal > >>>> type(tVec), intent(in) :: A,B > >>>> end function > >>>> > >>>> > >>>>>>>>> > >>>> FC arch-linux-c-debug/obj/vec/f90-mod/petscvecmod.o > >>>> /home/balay/petsc/src/vec/f90-mod/petscvecmod.F90:81:22: > >>>> > >>>> 81 | type(tVec), intent(in) :: A,B > >>>> | 1 > >>>> Error: Derived type ‘tvec’ at (1) is being used before it is defined > >>>> /home/balay/petsc/include/../src/vec/f90-mod/ftn-auto-interfaces/petscis.h90:2:10: > >>>> > >>>> 2 | use petscvecdef > >>>> | 1 > >>>> Fatal Error: Cannot open module file ‘petscvecdef.mod’ for reading at (1): No such file or directory > >>>> <<<<<< > >>>> > >>>> Satish > >> > >> > >

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Re: [petsc-dev] Case TS005062693 - XLF: ICE in xlfentry compiling a module with 358 subroutines
by Barry Smith 16 Mar '21

16 Mar '21

Jacob, I split the mat definitions in the MR https://gitlab.com/petsc/petsc/-/merge_requests/3696 <https://gitlab.com/petsc/petsc/-/merge_requests/3696> and this reduced memory requirements enough to get builds through on some VM that failed previously ran out of memory (with gfortran). The petsc*mod.F90 files are all handwritten so it is ok to manually change them with imports if that helps the IBM compiler. To me the best solution is to first split the files when possible (it is often not or just too painful) and then adding imports if needed. Note also the MR https://gitlab.com/petsc/petsc/-/merge_requests/3715/diffs <https://gitlab.com/petsc/petsc/-/merge_requests/3715/diffs> which may help a great deal with the IBM compiler or not. Thanks Barry > On Mar 16, 2021, at 11:47 AM, Jacob Faibussowitsch <jacob.fai(a)gmail.com> wrote: > > Ok something I have gotten to work, but only doing things by hand in petscvecmod.F90: > > diff --git a/src/vec/f90-mod/petscvecmod.F90 b/src/vec/f90-mod/petscvecmod.F90 > index 0c447156b9..ef3e2e2e55 100644 > --- a/src/vec/f90-mod/petscvecmod.F90 > +++ b/src/vec/f90-mod/petscvecmod.F90 > module petscisdef > use petscisdefdummy > interface operator(.ne.) > function isnotequal(A,B) > - use petscisdefdummy > + import tIS > logical isnotequal > type(tIS), intent(in) :: A,B > end function isnotequal > > This works for everything wrapped in a module which contains an interface block. For dangling functions the following works: > > function isnotequal(A,B) > - use petscisdefdummy > + use petscisdef, only: tIs > logical isnotequal > type(tIS), intent(in) :: A,B > isnotequal = (A%v .ne. B%v) > end function isnotequal > > Do our fortran stub generators have any notion of types? Specifically types that originate from petsc? > > Best regards, > > Jacob Faibussowitsch > (Jacob Fai - booss - oh - vitch) > Cell: (312) 694-3391 > >> On Mar 16, 2021, at 11:11, Satish Balay <balay(a)mcs.anl.gov <mailto:[email protected]>> wrote: >> >> On Tue, 16 Mar 2021, Jacob Faibussowitsch wrote: >> >>>> My [partial] change is in branch balay/reorg-f90-for-xlf >>> >>> Satish is this branch pushed? I’d like to send it to the ibm folks to see if it works for them as well. >> >> Sorry - pushed now. From what I remember - it didn't work. >> >> Satish >> >> >>> They also added this extra follow up: >>> >>> The change we did in the source files is to replace all the "use pet*" statements in all the Interface blocks with IMPORT statement. >>> >>> The nature of this workaround is to reduce the number of symbols that the compiler have to create, which exceeded the limitation and caused ICE. >>> >>> Every USE statement in an interface block opens up the module symbol file and reads all the symbols from it and creates an entity for each symbol in compiler. This is unnecessary when the module already has the same USE statement in the module scope. Instead, users can use IMPORT statement to make the module symbols accessible inside interface face blocks. >>> >>> With the change, the compiler would only read the module symbol file once and create one set of symbols where the old code reads the module symbol files as many times as the number of the USE statements in Interface blocks and create that many sets of duplicate symbols. Replacing those USE statements with IMPORT statements also shortens the compile time significantly. >>> >>> Best regards, >>> >>> Jacob Faibussowitsch >>> (Jacob Fai - booss - oh - vitch) >>> Cell: (312) 694-3391 >>> >>>> On Mar 3, 2021, at 13:43, Satish Balay via petsc-dev <petsc-dev(a)mcs.anl.gov <mailto:[email protected]>> wrote: >>>> >>>> The only change I can get working (i.e avoid compile errors) is to split petscvecmod.F90 into 2 source files - but I don't know if this will help with xlf.. >>>> >>>> My [partial] change is in branch balay/reorg-f90-for-xlf >>>> >>>> Satish >>>> >>>> On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: >>>> >>>>> On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: >>>>> >>>>>> Sure - once any change works locally [for gcc and xlf] >>>>>> >>>>>> When I try - I get a bunch of errors.. [yet to digest them.] >>>>> >>>>>>>>>> Can you please give the following source code workaround a try? >>>>>>>>>> Since there is already "use petscvecdefdummy" at the module scope, one workaround might be to remove the unnecessary "use petscvecdefdummy" in vecnotequal and vecequals >>>>>>>>>> and all similar procedures. >>>>>>>>>> >>>>>>>>>> For example, the test case has: >>>>>>>>>> module petscvecdef >>>>>>>>>> use petscvecdefdummy >>>>>>>>>> ... >>>>>>>>>> function vecnotequal(A,B) >>>>>>>>>> use petscvecdefdummy >>>>>>>>>> logical vecnotequal >>>>>>>>>> type(tVec), intent(in) :: A,B >>>>>>>>>> vecnotequal = (A%v .ne. B%v) >>>>>>>>>> end function >>>>> >>>>> >>>>> Ok - try this suggestion: >>>>> >>>>> diff --git a/src/vec/f90-mod/petscvecmod.F90 b/src/vec/f90-mod/petscvecmod.F90 >>>>> index 0c447156b9..81968c7ca1 100644 >>>>> --- a/src/vec/f90-mod/petscvecmod.F90 >>>>> +++ b/src/vec/f90-mod/petscvecmod.F90 >>>>> @@ -77,7 +77,6 @@ >>>>> use petscvecdefdummy >>>>> interface operator(.ne.) >>>>> function vecnotequal(A,B) >>>>> - use petscvecdefdummy >>>>> logical vecnotequal >>>>> type(tVec), intent(in) :: A,B >>>>> end function >>>>> >>>>> >>>>>>>>>> >>>>> FC arch-linux-c-debug/obj/vec/f90-mod/petscvecmod.o >>>>> /home/balay/petsc/src/vec/f90-mod/petscvecmod.F90:81:22: >>>>> >>>>> 81 | type(tVec), intent(in) :: A,B >>>>> | 1 >>>>> Error: Derived type ‘tvec’ at (1) is being used before it is defined >>>>> /home/balay/petsc/include/../src/vec/f90-mod/ftn-auto-interfaces/petscis.h90:2:10: >>>>> >>>>> 2 | use petscvecdef >>>>> | 1 >>>>> Fatal Error: Cannot open module file ‘petscvecdef.mod’ for reading at (1): No such file or directory >>>>> <<<<<< >>>>> >>>>> Satish >>> >>> >

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Re: [petsc-dev] Case TS005062693 - XLF: ICE in xlfentry compiling a module with 358 subroutines
by Jacob Faibussowitsch 16 Mar '21

16 Mar '21

Ok something I have gotten to work, but only doing things by hand in petscvecmod.F90: diff --git a/src/vec/f90-mod/petscvecmod.F90 b/src/vec/f90-mod/petscvecmod.F90 index 0c447156b9..ef3e2e2e55 100644 --- a/src/vec/f90-mod/petscvecmod.F90 +++ b/src/vec/f90-mod/petscvecmod.F90 module petscisdef use petscisdefdummy interface operator(.ne.) function isnotequal(A,B) - use petscisdefdummy + import tIS logical isnotequal type(tIS), intent(in) :: A,B end function isnotequal This works for everything wrapped in a module which contains an interface block. For dangling functions the following works: function isnotequal(A,B) - use petscisdefdummy + use petscisdef, only: tIs logical isnotequal type(tIS), intent(in) :: A,B isnotequal = (A%v .ne. B%v) end function isnotequal Do our fortran stub generators have any notion of types? Specifically types that originate from petsc? Best regards, Jacob Faibussowitsch (Jacob Fai - booss - oh - vitch) Cell: (312) 694-3391 > On Mar 16, 2021, at 11:11, Satish Balay <balay(a)mcs.anl.gov> wrote: > > On Tue, 16 Mar 2021, Jacob Faibussowitsch wrote: > >>> My [partial] change is in branch balay/reorg-f90-for-xlf >> >> Satish is this branch pushed? I’d like to send it to the ibm folks to see if it works for them as well. > > Sorry - pushed now. From what I remember - it didn't work. > > Satish > > >> They also added this extra follow up: >> >> The change we did in the source files is to replace all the "use pet*" statements in all the Interface blocks with IMPORT statement. >> >> The nature of this workaround is to reduce the number of symbols that the compiler have to create, which exceeded the limitation and caused ICE. >> >> Every USE statement in an interface block opens up the module symbol file and reads all the symbols from it and creates an entity for each symbol in compiler. This is unnecessary when the module already has the same USE statement in the module scope. Instead, users can use IMPORT statement to make the module symbols accessible inside interface face blocks. >> >> With the change, the compiler would only read the module symbol file once and create one set of symbols where the old code reads the module symbol files as many times as the number of the USE statements in Interface blocks and create that many sets of duplicate symbols. Replacing those USE statements with IMPORT statements also shortens the compile time significantly. >> >> Best regards, >> >> Jacob Faibussowitsch >> (Jacob Fai - booss - oh - vitch) >> Cell: (312) 694-3391 >> >>> On Mar 3, 2021, at 13:43, Satish Balay via petsc-dev <petsc-dev(a)mcs.anl.gov> wrote: >>> >>> The only change I can get working (i.e avoid compile errors) is to split petscvecmod.F90 into 2 source files - but I don't know if this will help with xlf.. >>> >>> My [partial] change is in branch balay/reorg-f90-for-xlf >>> >>> Satish >>> >>> On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: >>> >>>> On Wed, 3 Mar 2021, Satish Balay via petsc-dev wrote: >>>> >>>>> Sure - once any change works locally [for gcc and xlf] >>>>> >>>>> When I try - I get a bunch of errors.. [yet to digest them.] >>>> >>>>>>>>> Can you please give the following source code workaround a try? >>>>>>>>> Since there is already "use petscvecdefdummy" at the module scope, one workaround might be to remove the unnecessary "use petscvecdefdummy" in vecnotequal and vecequals >>>>>>>>> and all similar procedures. >>>>>>>>> >>>>>>>>> For example, the test case has: >>>>>>>>> module petscvecdef >>>>>>>>> use petscvecdefdummy >>>>>>>>> ... >>>>>>>>> function vecnotequal(A,B) >>>>>>>>> use petscvecdefdummy >>>>>>>>> logical vecnotequal >>>>>>>>> type(tVec), intent(in) :: A,B >>>>>>>>> vecnotequal = (A%v .ne. B%v) >>>>>>>>> end function >>>> >>>> >>>> Ok - try this suggestion: >>>> >>>> diff --git a/src/vec/f90-mod/petscvecmod.F90 b/src/vec/f90-mod/petscvecmod.F90 >>>> index 0c447156b9..81968c7ca1 100644 >>>> --- a/src/vec/f90-mod/petscvecmod.F90 >>>> +++ b/src/vec/f90-mod/petscvecmod.F90 >>>> @@ -77,7 +77,6 @@ >>>> use petscvecdefdummy >>>> interface operator(.ne.) >>>> function vecnotequal(A,B) >>>> - use petscvecdefdummy >>>> logical vecnotequal >>>> type(tVec), intent(in) :: A,B >>>> end function >>>> >>>> >>>>>>>>> >>>> FC arch-linux-c-debug/obj/vec/f90-mod/petscvecmod.o >>>> /home/balay/petsc/src/vec/f90-mod/petscvecmod.F90:81:22: >>>> >>>> 81 | type(tVec), intent(in) :: A,B >>>> | 1 >>>> Error: Derived type ‘tvec’ at (1) is being used before it is defined >>>> /home/balay/petsc/include/../src/vec/f90-mod/ftn-auto-interfaces/petscis.h90:2:10: >>>> >>>> 2 | use petscvecdef >>>> | 1 >>>> Fatal Error: Cannot open module file ‘petscvecdef.mod’ for reading at (1): No such file or directory >>>> <<<<<< >>>> >>>> Satish >> >>

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