Re: [petsc-dev] (arm64) could not find object file symbol for symbol ___muldc3

6 Apr 2021


      Blaise,

    Thanks, can you try cd src/snes/tutorials and then cut and paste the huge line that you sent earlier that begins with mpif90 -Wl,-bind_at_load .....  and add at the end -lgcc and see if that line successfully links the Fortran code?

   Thanks

   Barry
...
On Apr 6, 2021, at 12:22 PM, Blaise A Bourdin <[email protected]> wrote:
Hi Barry,
...
Please send configure.log
See attached
...
It would also be helpful if you could run
nm -o /usr/lib/lib* | grep muldc3
That is uneventful (I have no idea how these broken symbolic link got there and can’t delete them because of SIP)…
SiMini:lib $  nm -o /usr/lib/lib* | grep muldc3 
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/nm: error: /usr/lib/libhunspell-1.2.0.dylib: No such file or directory.
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/nm: error: /usr/lib/libhunspell-1.2.dylib: No such file or directory.
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/nm: error: /usr/lib/libiodbc.2.dylib: No such file or directory.
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/nm: error: /usr/lib/libiodbc.dylib: No such file or directory.
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/nm: error: /usr/lib/libiodbcinst.2.dylib: No such file or directory.
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/nm: error: /usr/lib/libiodbcinst.dylib: No such file or directory.
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/nm: error: /usr/lib/libstdc++.6.dylib: No such file or directory.
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/nm: error: /usr/lib/libstdc++.dylib: No such file or directory.
Blaise
...
Our cross language linker tests are not adding all the libraries they need to add when using Fortran for linking.
Barry
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On Apr 6, 2021, at 11:00 AM, Matthew Knepley <[email protected] <mailto:[email protected]>> wrote:
On Tue, Apr 6, 2021 at 11:04 AM Blaise A Bourdin <[email protected] <mailto:[email protected]>> wrote:
Hi,
I am having the following warning when compiling any fortran example (currently on main, but  it’s been going on for a little while) on a ARM mac.
*******************Error detected during compile or link!*******************
See http://www.mcs.anl.gov/petsc/documentation/faq.html <https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.mcs.anl.gov%2Fpetsc%2Fdocumentation%2Ffaq.html&data=04%7C01%7Cbourdin%40lsu.edu%7C1caa897a3d29406a847a08d8f91e2437%7C2d4dad3f50ae47d983a09ae2b1f466f8%7C0%7C0%7C637533255143763999%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=jUhAyI70WckpP44KmDOnEFll%2FU4LAJXxjShso6agevU%3D&reserved=0>
/opt/HPC/petsc-main/src/snes/tutorials ex5f
*********************************************************
mpif90 -Wl,-bind_at_load -Wl,-multiply_defined,suppress -Wl,-multiply_defined -Wl,suppress -Wl,-commons,use_dylibs -Wl,-search_paths_first -Wl,-no_compact_unwind -ffree-line-length-none -fallow-argument-mismatch -fPIC -g   -ffree-line-length-none -fallow-argument-mismatch -fPIC -g    -I/opt/HPC/petsc-main/include -I/opt/HPC/petsc-main/bigsur-gcc10.2-arm64-reallybasic-g/include -I/opt/X11/include     ex5f.F90  -Wl,-rpath,/opt/HPC/petsc-main/bigsur-gcc10.2-arm64-reallybasic-g/lib -L/opt/HPC/petsc-main/bigsur-gcc10.2-arm64-reallybasic-g/lib -Wl,-rpath,/opt/X11/lib -L/opt/X11/lib -Wl,-rpath,/opt/homebrew/Cellar/mpich/3.4.1_2/lib -L/opt/homebrew/Cellar/mpich/3.4.1_2/lib -Wl,-rpath,/opt/homebrew/Cellar/gcc/10.2.0_4/lib/gcc/10/gcc/aarch64-apple-darwin20/10.2.1 -L/opt/homebrew/Cellar/gcc/10.2.0_4/lib/gcc/10/gcc/aarch64-apple-darwin20/10.2.1 -Wl,-rpath,/opt/homebrew/Cellar/gcc/10.2.0_4/lib/gcc/10 -L/opt/homebrew/Cellar/gcc/10.2.0_4/lib/gcc/10 -lpetsc -llapack -lblas -lX11 -lc++ -ldl -lmpifort -lmpi -lpmpi -lgfortran -lemutls_w -lm -lc++ -ldl -o ex5f
warning: (arm64)  could not find object file symbol for symbol muldc3
Fortran example src/snes/tutorials/ex5f run successfully with 1 MPI process
For reference, here is how I configured petsc:
./configure     --CFLAGS='-Wimplicit-function-declaration'    --FFLAGS="-ffree-line-length-none -fallow-argument-mismatch"            --with-debugging=1                    --with-shared-libraries=1             --with-x11=1
It looks like this symbol is referenced in: sfpack.o
SiMini:petsc-main (main)$ grep -ri muldc3 bigsur-gcc10.2-arm64-reallybasic-g/*
Binary file bigsur-gcc10.2-arm64-reallybasic-g/lib/libpetsc.3.015.0.dylib matches
Binary file bigsur-gcc10.2-arm64-reallybasic-g/lib/libpetsc.3.015.dylib matches
bigsur-gcc10.2-arm64-reallybasic-g/lib/petsc/conf/check.log:warning: (arm64)  could not find object file symbol for symbol ___muldc3
Binary file bigsur-gcc10.2-arm64-reallybasic-g/lib/libpetsc.dylib matches
Binary file bigsur-gcc10.2-arm64-reallybasic-g/obj/vec/is/sf/impls/basic/sfpack.o matches
SiMini:petsc-main (main)$ nm bigsur-gcc10.2-arm64-reallybasic-g/obj/vec/is/sf/impls/basic/sfpack.o | grep muldc3
                 U ___muldc3
Google tells me it is a gcc thing for complex multiplication. Ah, I think this is the problem:
https://lists.mcs.anl.gov/pipermail/mpich-discuss/2012-August/012920.html <https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.mcs.anl.gov%2Fpipermail%2Fmpich-discuss%2F2012-August%2F012920.html&data=04%7C01%7Cbourdin%40lsu.edu%7C1caa897a3d29406a847a08d8f91e2437%7C2d4dad3f50ae47d983a09ae2b1f466f8%7C0%7C0%7C637533255143773979%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=iLqpods%2FmSEBegdedaR6yWdR3ZZlDqjG%2Fz3195gQOas%3D&reserved=0>
It is in the C library and you are linking from Fortran, so the compatibility libraries are not correct.
Thanks,
Matt
Any idea?
Blaise
-- 
A.K. & Shirley Barton Professor of  Mathematics
Adjunct Professor of Mechanical Engineering
Adjunct of the Center for Computation & Technology
Louisiana State University, Lockett Hall Room 344, Baton Rouge, LA 70803, USA
Tel. +1 (225) 578 1612, Fax  +1 (225) 578 4276 Web http://www.math.lsu.edu/~bourdin <http://www.math.lsu.edu/~bourdin>
-- 
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/ <https://nam04.safelinks.protection.outlook.com/?url=http:%2F%2Fwww.cse.buffalo.edu%2F~knepley%2F&data=04%7C01%7Cbourdin%40lsu.edu%7C1caa897a3d29406a847a08d8f91e2437%7C2d4dad3f50ae47d983a09ae2b1f466f8%7C0%7C0%7C637533255143773979%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=%2FiiOZhkY8XtRtWjkhddZhf9dUHf06c%2BtbEfcYueecbI%3D&reserved=0>
-- 
A.K. & Shirley Barton Professor of  Mathematics
Adjunct Professor of Mechanical Engineering
Adjunct of the Center for Computation & Technology
Louisiana State University, Lockett Hall Room 344, Baton Rouge, LA 70803, USA
Tel. +1 (225) 578 1612, Fax  +1 (225) 578 4276 Web http://www.math.lsu.edu/~bourdin <http://www.math.lsu.edu/~bourdin>
<configure.log>

Barry Smith

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