December 2015 - discuss - mailman3.cels.anl.gov

Re: [mpich-discuss] MPICH v3.2 and SLRUM
by Guo, Yanfei 01 Dec '15

01 Dec '15

Hi Andreas, I am guessing that you are using "--cpu-freq" option of srun. One way to go is manually setting the SLRUM_CPU_FREQ_REQ environment variable. Srun suppose to pick that up. Yanfei Guo Postdoctoral Appointee MCS Division, ANL On 12/1/15, 11:22 AM, "Andreas Gocht" <andreas.gocht(a)tu-dresden.de> wrote: >Hey > >yeah mpiexec is working quite well. I'd just liked to use slurm, as our >implantation allows to set the cpu frequency on a node. Is there a way >to pass flags to srun using mpiexec? > >Thanks four your help. > >Kind Regards > >Andreas > >Am 01.12.2015 um 17:41 schrieb Balaji, Pavan: >> Looks like SLURM is telling MPICH that two processes are on the same node, even though they are on different nodes. It looks like a bug in the SLURM PMI implementation. Did you try simply using mpiexec instead? You'll need to remove the --with-pmi, --with-pm, and LDFLAGS/LIBS options and rebuild mpich for that. Note that mpiexec will internally use srun on slurm environments. >> >> -- Pavan >> >>> On Dec 1, 2015, at 5:56 AM, Andreas Gocht <andreas.gocht(a)tu-dresden.de> wrote: >>> >>> Hey >>> >>> I tried to build an use mpich with slurm, sbatch and srun. Unfortunate it looks like MPI_Init doesn't work with srun. >>> >>> I got the following error: >>> >>> Fatal error in MPI_Init: Other MPI error, error stack: >>> MPIR_Init_thread(474).................: >>> MPID_Init(190)........................: channel initialization failed >>> MPIDI_CH3_Init(89)....................: >>> MPID_nem_init(272)....................: >>> MPIDI_CH3I_Seg_commit(366)............: >>> MPIU_SHMW_Hnd_deserialize(324)........: >>> MPIU_SHMW_Seg_open(865)...............: >>> MPIU_SHMW_Seg_create_attach_templ(637): open failed - No such file or directory >>> In: PMI_Abort(4239887, Fatal error in MPI_Init: Other MPI error, error stack: >>> MPIR_Init_thread(474).................: >>> MPID_Init(190)........................: channel initialization failed >>> MPIDI_CH3_Init(89)....................: >>> MPID_nem_init(272)....................: >>> MPIDI_CH3I_Seg_commit(366)............: >>> MPIU_SHMW_Hnd_deserialize(324)........: >>> MPIU_SHMW_Seg_open(865)...............: >>> MPIU_SHMW_Seg_create_attach_templ(637): open failed - No such file or directory) >>> >>> I configured MPICH with "./configure --prefix=<some/prefix> --with-pmi=slurm --with-pm=none --with-slurm=<path/to/slurm>" and compiled my application with the "-L<path_to_slurm_lib> -lpmi" command. >>> >>> (as described in >>> >>> https://wiki.mpich.org/mpich/index.php/Frequently_Asked_Questions#Note_that…. >>> >>> and >>> >>> https://computing.llnl.gov/linux/slurm/mpi_guide.html#mpich2 >>> >>> ) >>> >>> I am running with 10 nodes and one task per node. Is there something I am missing during the configuration of MPICH? >>> >>> Best, >>> >>> Andreas >>> >>> -- >>> M.Sc. Andreas Gocht >>> >>> Technische Universität Dresden >>> Center for Information Services and >>> High Performance Computing (ZIH) >>> D-01062 Dresden >>> Germany >>> >>> Contact: >>> Willersbau, Room A 104 >>> Phone: (+49) 351 463-36415 >>> Fax: (+49) 351 463-3773 >>> e-mail: andreas.gocht(a)tu-dresden.de >>> >>> >>> _______________________________________________ >>> discuss mailing list discuss(a)mpich.org >>> To manage subscription options or unsubscribe: >>> https://lists.mpich.org/mailman/listinfo/discuss >> _______________________________________________ >> discuss mailing list discuss(a)mpich.org >> To manage subscription options or unsubscribe: >> https://lists.mpich.org/mailman/listinfo/discuss > >-- >M.Sc. Andreas Gocht > >Technische Universität Dresden >Center for Information Services and >High Performance Computing (ZIH) >D-01062 Dresden >Germany > >Contact: >Willersbau, Room A 104 >Phone: (+49) 351 463-36415 >Fax: (+49) 351 463-3773 >e-mail: andreas.gocht(a)tu-dresden.de > > _______________________________________________ discuss mailing list discuss(a)mpich.org To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss

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Re: [mpich-discuss] Building MPE for use with OpenMPI
by Schilling, Herbert W. (GRC-VE00) 01 Dec '15

01 Dec '15

Hi Jeff, Thanks. Pardon my ignorance but I I wanted to just use MPE with an existing OpenMPI installation and it's not clear to me ( even after searching and reading ), how to do that from the full MPICH code base at that repo. I can't really even find MPE in that code at all. What am I missing? Thanks On Dec 1, 2015, at 10:03 AM, Jeff Hammond <jeff.science(a)gmail.com<mailto:[email protected]>> wrote: Herbert: Please try https://github.com/jeffhammond/mpich/tree/hammond-mpi2-deprecated-functions… and let me know if you see any problems. Best, Jeff On Tue, Dec 1, 2015 at 5:46 AM, Schilling, Herbert W. (GRC-VE00) <hschilling(a)nasa.gov<mailto:[email protected]>> wrote: Hi Jeff and Pavan, Thanks for all the help on this. Jeff, when you have the fix up there, I can give it a shot! On Dec 1, 2015, at 1:15 AM, Jeff Hammond <jeff.science(a)gmail.com<mailto:[email protected]>> wrote: Facepalm. Indeed, changing the header but not the implementation was pretty dumb on my part. I'll fix that tomorrow. I have no opinion on the ABI situation, particularly since I know there are other folks that Intel that do. Jeff On Mon, Nov 30, 2015 at 9:00 PM, Balaji, Pavan <balaji(a)anl.gov<mailto:[email protected]>> wrote: Thanks, Jeff. The actual function definitions should be modified as well, which your patch seems to miss. But I think the potentially time consuming part is to get buy-in from all the ABI consortium folks for this change. It doesn't exactly break ABI for applications, but will be an annoying change for tools. Ken is looking into this. -- Pavan > On Nov 30, 2015, at 10:54 PM, Jeff Hammond <jeff.science(a)gmail.com<mailto:[email protected]>> wrote: > > Pavan: > > See hammond-mpi2-deprecated-functions-noconst branch on mpich-review. I found three functions where this change should be made. I do not know if that is the full list, so someone should verify. > > Best, > > Jeff > > On Mon, Nov 30, 2015 at 8:08 PM, Balaji, Pavan <balaji(a)anl.gov<mailto:[email protected]>> wrote: > > MPI_Type_struct is not a part of the MPI standard anymore and is replaced by MPI_Type_create_struct. Both MPICH and Open MPI decided to retain it, but followed different directions for it. MPICH decided to follow the same convention as MPI_Type_create_struct with the const additions. Open MPI decided to keep the old prototypes as is. > > Unfortunately, MPE got stuck in between the two. The best approach would be to simply remove those functions from MPE and this problem just goes away. Would you be able to do that and contribute a patch? > > More generally, I think MPICH was overzealous in trying to constify prototypes for the deleted functions. It should have just left them as they are, like what Open MPI did. We'll figure out what to do about that internally, but that's not going to be a quick change because of ABI and other such stuff. > > Thanks, > > -- Pavan > > > On Nov 30, 2015, at 8:14 PM, Schilling, Herbert W. (GRC-VE00) <hschilling(a)nasa.gov<mailto:[email protected]>> wrote: > > > > Hi, > > > > I am trying to build MPE for use with OpenMPI. I built from source Version 1.10.1 of OpenMPI. > > > > I am using this version of MPE ftp://ftp.mcs.anl.gov/pub/mpi/mpe/mpe2.tar.gz > > > > Should this work fine? I followed the instructions to build like this: > > > > ${MPE_SRC_DIR}/configure MPI_CC=${OPENMPI_INSTALL_DIR}/bin/mpicc \ > > CC=<C_COMPILER_used_to_build_OpenMPI> \ > > MPI_F77=${OPENMPI_INSTALL_DIR}/bin/mpif77 \ > > F77=<FORTRAN_COMPILER_used_to_build_OpenMPI> \ > > --with-java2=/usr/local/j2sdk-1.4.2 > > --prefix=<MPE_INSTALL_DIR> > > make > > make install > > > > > > > > > > I keep running into problems with conflicting declarations > > > > > > log_mpi_core.c:5611: error: conflicting types for 'MPI_Type_struct' > > /u/hschilli/local/include/mpi.h:1796: error: previous declaration of 'MPI_Type_struct' was here > > > > > > I think the issue is that MPE's declaration uses some const qualifiers while OpenMPI does not. > > > > > > > > I tried hacking my way through this with the macro > > > > HAVE_CONST_IN_MPI_DECL > > and MPE_CONST but no luck so far. > > > > > > > > What am I doing wrong? > > > > > > Thanks in advance. > > > > --------- > > Herb Schilling > > Scientific Applications and Visualization Team > > http://ocio.grc.nasa.gov/gvis > > Office of the Chief Information Officer > > NASA Glenn Research Center > > hschilling(a)nasa.gov<mailto:[email protected]> > > > > > > > > > > _______________________________________________ > > discuss mailing list discuss(a)mpich.org<mailto:[email protected]> > > To manage subscription options or unsubscribe: > > https://lists.mpich.org/mailman/listinfo/discuss > > _______________________________________________ > discuss mailing list discuss(a)mpich.org<mailto:[email protected]> > To manage subscription options or unsubscribe: > https://lists.mpich.org/mailman/listinfo/discuss > > > > -- > Jeff Hammond > jeff.science(a)gmail.com<mailto:[email protected]> > http://jeffhammond.github.io/ > _______________________________________________ > discuss mailing list discuss(a)mpich.org<mailto:[email protected]> > To manage subscription options or unsubscribe: > https://lists.mpich.org/mailman/listinfo/discuss _______________________________________________ discuss mailing list discuss(a)mpich.org<mailto:[email protected]> To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss -- Jeff Hammond jeff.science(a)gmail.com<mailto:[email protected]> http://jeffhammond.github.io/ _______________________________________________ discuss mailing list discuss(a)mpich.org<mailto:[email protected]> To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss --------- Herb Schilling Scientific Applications and Visualization Team http://ocio.grc.nasa.gov/gvis Office of the Chief Information Officer NASA Glenn Research Center hschilling(a)nasa.gov<mailto:[email protected]> _______________________________________________ discuss mailing list discuss(a)mpich.org<mailto:[email protected]> To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss -- Jeff Hammond jeff.science(a)gmail.com<mailto:[email protected]> http://jeffhammond.github.io/ _______________________________________________ discuss mailing list discuss(a)mpich.org<mailto:[email protected]> To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss --------- Herb Schilling Scientific Applications and Visualization Team http://ocio.grc.nasa.gov/gvis Office of the Chief Information Officer NASA Glenn Research Center hschilling(a)nasa.gov<mailto:[email protected]> _______________________________________________ discuss mailing list discuss(a)mpich.org To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss

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Re: [mpich-discuss] MPICH v3.2 and SLRUM
by Andreas Gocht 01 Dec '15

01 Dec '15

Hey yeah mpiexec is working quite well. I'd just liked to use slurm, as our implantation allows to set the cpu frequency on a node. Is there a way to pass flags to srun using mpiexec? Thanks four your help. Kind Regards Andreas Am 01.12.2015 um 17:41 schrieb Balaji, Pavan: > Looks like SLURM is telling MPICH that two processes are on the same node, even though they are on different nodes. It looks like a bug in the SLURM PMI implementation. Did you try simply using mpiexec instead? You'll need to remove the --with-pmi, --with-pm, and LDFLAGS/LIBS options and rebuild mpich for that. Note that mpiexec will internally use srun on slurm environments. > > -- Pavan > >> On Dec 1, 2015, at 5:56 AM, Andreas Gocht <andreas.gocht(a)tu-dresden.de> wrote: >> >> Hey >> >> I tried to build an use mpich with slurm, sbatch and srun. Unfortunate it looks like MPI_Init doesn't work with srun. >> >> I got the following error: >> >> Fatal error in MPI_Init: Other MPI error, error stack: >> MPIR_Init_thread(474).................: >> MPID_Init(190)........................: channel initialization failed >> MPIDI_CH3_Init(89)....................: >> MPID_nem_init(272)....................: >> MPIDI_CH3I_Seg_commit(366)............: >> MPIU_SHMW_Hnd_deserialize(324)........: >> MPIU_SHMW_Seg_open(865)...............: >> MPIU_SHMW_Seg_create_attach_templ(637): open failed - No such file or directory >> In: PMI_Abort(4239887, Fatal error in MPI_Init: Other MPI error, error stack: >> MPIR_Init_thread(474).................: >> MPID_Init(190)........................: channel initialization failed >> MPIDI_CH3_Init(89)....................: >> MPID_nem_init(272)....................: >> MPIDI_CH3I_Seg_commit(366)............: >> MPIU_SHMW_Hnd_deserialize(324)........: >> MPIU_SHMW_Seg_open(865)...............: >> MPIU_SHMW_Seg_create_attach_templ(637): open failed - No such file or directory) >> >> I configured MPICH with "./configure --prefix=<some/prefix> --with-pmi=slurm --with-pm=none --with-slurm=<path/to/slurm>" and compiled my application with the "-L<path_to_slurm_lib> -lpmi" command. >> >> (as described in >> >> https://wiki.mpich.org/mpich/index.php/Frequently_Asked_Questions#Note_that…. >> >> and >> >> https://computing.llnl.gov/linux/slurm/mpi_guide.html#mpich2 >> >> ) >> >> I am running with 10 nodes and one task per node. Is there something I am missing during the configuration of MPICH? >> >> Best, >> >> Andreas >> >> -- >> M.Sc. Andreas Gocht >> >> Technische Universität Dresden >> Center for Information Services and >> High Performance Computing (ZIH) >> D-01062 Dresden >> Germany >> >> Contact: >> Willersbau, Room A 104 >> Phone: (+49) 351 463-36415 >> Fax: (+49) 351 463-3773 >> e-mail: andreas.gocht(a)tu-dresden.de >> >> >> _______________________________________________ >> discuss mailing list discuss(a)mpich.org >> To manage subscription options or unsubscribe: >> https://lists.mpich.org/mailman/listinfo/discuss > _______________________________________________ > discuss mailing list discuss(a)mpich.org > To manage subscription options or unsubscribe: > https://lists.mpich.org/mailman/listinfo/discuss -- M.Sc. Andreas Gocht Technische Universität Dresden Center for Information Services and High Performance Computing (ZIH) D-01062 Dresden Germany Contact: Willersbau, Room A 104 Phone: (+49) 351 463-36415 Fax: (+49) 351 463-3773 e-mail: andreas.gocht(a)tu-dresden.de _______________________________________________ discuss mailing list discuss(a)mpich.org To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss

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Re: [mpich-discuss] MPICH v3.2 and SLRUM
by Balaji, Pavan 01 Dec '15

01 Dec '15

Looks like SLURM is telling MPICH that two processes are on the same node, even though they are on different nodes. It looks like a bug in the SLURM PMI implementation. Did you try simply using mpiexec instead? You'll need to remove the --with-pmi, --with-pm, and LDFLAGS/LIBS options and rebuild mpich for that. Note that mpiexec will internally use srun on slurm environments. -- Pavan > On Dec 1, 2015, at 5:56 AM, Andreas Gocht <andreas.gocht(a)tu-dresden.de> wrote: > > Hey > > I tried to build an use mpich with slurm, sbatch and srun. Unfortunate it looks like MPI_Init doesn't work with srun. > > I got the following error: > > Fatal error in MPI_Init: Other MPI error, error stack: > MPIR_Init_thread(474).................: > MPID_Init(190)........................: channel initialization failed > MPIDI_CH3_Init(89)....................: > MPID_nem_init(272)....................: > MPIDI_CH3I_Seg_commit(366)............: > MPIU_SHMW_Hnd_deserialize(324)........: > MPIU_SHMW_Seg_open(865)...............: > MPIU_SHMW_Seg_create_attach_templ(637): open failed - No such file or directory > In: PMI_Abort(4239887, Fatal error in MPI_Init: Other MPI error, error stack: > MPIR_Init_thread(474).................: > MPID_Init(190)........................: channel initialization failed > MPIDI_CH3_Init(89)....................: > MPID_nem_init(272)....................: > MPIDI_CH3I_Seg_commit(366)............: > MPIU_SHMW_Hnd_deserialize(324)........: > MPIU_SHMW_Seg_open(865)...............: > MPIU_SHMW_Seg_create_attach_templ(637): open failed - No such file or directory) > > I configured MPICH with "./configure --prefix=<some/prefix> --with-pmi=slurm --with-pm=none --with-slurm=<path/to/slurm>" and compiled my application with the "-L<path_to_slurm_lib> -lpmi" command. > > (as described in > > https://wiki.mpich.org/mpich/index.php/Frequently_Asked_Questions#Note_that…. > > and > > https://computing.llnl.gov/linux/slurm/mpi_guide.html#mpich2 > > ) > > I am running with 10 nodes and one task per node. Is there something I am missing during the configuration of MPICH? > > Best, > > Andreas > > -- > M.Sc. Andreas Gocht > > Technische Universität Dresden > Center for Information Services and > High Performance Computing (ZIH) > D-01062 Dresden > Germany > > Contact: > Willersbau, Room A 104 > Phone: (+49) 351 463-36415 > Fax: (+49) 351 463-3773 > e-mail: andreas.gocht(a)tu-dresden.de > > > _______________________________________________ > discuss mailing list discuss(a)mpich.org > To manage subscription options or unsubscribe: > https://lists.mpich.org/mailman/listinfo/discuss _______________________________________________ discuss mailing list discuss(a)mpich.org To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss

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Re: [mpich-discuss] MPI_Gather fails with 2048 processes and 4096 MB total
by Rob Latham 01 Dec '15

01 Dec '15

On 11/26/2015 12:38 PM, Archer, Charles J wrote: > FYI, we hit various flavors of this problem when I was still at IBM, I think mostly in weather codes. > Apparently Cray hit this too: > > https://trac.mpich.org/projects/mpich/ticket/1767 > > We pretty much told our customers back then that a fix was forthcoming (with no ETA :) )with the revamp of datatypes to use internal 64-bit counts. > We also provided workarounds. > > In the case of this gather operation, we asked the customer to implement gather as a flat tree using point to point. > Root posts irecvs, then barrier, children send to root. > > IRC, the giant gather we were debugging was at the very end of the application and used to gather some statistics for IO at the root, so it wasn’t critical to perform well. > I also attempted a workaround using some derived datatypes, but I hit another truncation in the datatype code itself :\ > I should see if I can dig up that implementation and make sure it isn’t still broken for large counts. those are all fine approaches to work around the problem. the internals of MPICH, though, need to be 64 bit clean -- there are still 4500 places where clang warns of a 64 bit value being assigned to a 32 bit type. Florian Willich, what version of MPICH is this? The line numbers in the back trace don't match up with what I've got, and I really thought we fixed this class of bug with commits 31d95ed7b18c and 68f8c7aa7 over the summer. ==rob > > > > > > On Nov 26, 2015, at 12:14 PM, Balaji, Pavan <balaji(a)anl.gov<mailto:[email protected]>> wrote: > > > Thanks for reporting. This looks like an integer-overflow issue, which fails when the summation of data elements from all processes is larger than INT_MAX (2 billion). We'll look into it. I've created a ticket for it, and added you as the reporter, so you'll get notified as they are updates. > > http://trac.mpich.org/projects/mpich/ticket/2317 > > Rob: can you create a simple test program for this and add it to the test bucket, so it shows up on the nightlies? > > Thanks, > > -- Pavan > > On Nov 26, 2015, at 10:18 AM, Florian.Willich(a)dlr.de wrote: > > Dear mpich discussion group, > > the following issue appeared when running some benchmarks with MPI Gather: > > Gathering data (calling MPI_Gather(...) ) involing 2048 processes and 2 MB of data (4096 MB total) that each process sends fails with the following output: > ____________________________ > > Rank 1024 [Thu Nov 26 09:43:16 2015] [c1-0c1s12n3] Fatal error in PMPI_Gather: Invalid count, error stack: > PMPI_Gather(959)......: MPI_Gather(sbuf=0x2aaab826c010, scount=524288, MPI_INT, rbuf=(nil), rcount=524288, MPI_INT, root=0, MPI_COMM_WORLD) failed > MPIR_Gather_impl(775).: > MPIR_Gather(735)......: > MPIR_Gather_intra(347): > MPIC_Send(360)........: Negative count, value is -2147483648 > _pmiu_daemon(SIGCHLD): [NID 00307] [c1-0c1s12n3] [Thu Nov 26 09:43:16 2015] PE RANK 1024 exit signal Aborted > [NID 00307] 2015-11-26 09:43:16 Apid 949450: initiated application termination > Application 949450 exit codes: 134 > Application 949450 exit signals: Killed > Application 949450 resources: utime ~1s, stime ~137s, Rss ~2110448, inblocks ~617782, outblocks ~1659320 > ____________________________ > > The following are some tests that I ran to better understand the problem: > > 2047 processes - 2 MB (4094 MB total) -> works! > > 2048 processes - 2047.5 KB (~1.999512 MB) (4095 MB total) -> works! > > 2048 processes - 3 MB (6144 MB total) -> fails: > ____________________________ > > Rank 1024 [Thu Nov 26 09:41:15 2015] [c1-0c1s12n3] Fatal error in PMPI_Gather: Invalid count, error stack: > PMPI_Gather(959)......: MPI_Gather(sbuf=0x2aaab826c010, scount=786432, MPI_INT, rbuf=(nil), rcount=786432, MPI_INT, root=0, MPI_COMM_WORLD) failed > MPIR_Gather_impl(775).: > MPIR_Gather(735)......: > MPIR_Gather_intra(347): > MPIC_Send(360)........: Negative count, value is -1073741824 > _pmiu_daemon(SIGCHLD): [NID 00307] [c1-0c1s12n3] [Thu Nov 26 09:41:15 2015] PE RANK 1024 exit signal Aborted > [NID 00307] 2015-11-26 09:41:15 Apid 949448: initiated application termination > Application 949448 exit codes: 134 > Application 949448 exit signals: Killed > Application 949448 resources: utime ~1s, stime ~139s, Rss ~3159984, inblocks ~617782, outblocks ~1659351 > ____________________________ > > 2047 processes - 3 MB (6141 MB total) -> fails: > ____________________________ > > Rank 1024 [Thu Nov 26 09:40:31 2015] [c1-0c1s12n3] Fatal error in PMPI_Gather: Invalid count, error stack: > PMPI_Gather(959)......: MPI_Gather(sbuf=0x2aaab826c010, scount=786432, MPI_INT, rbuf=(nil), rcount=786432, MPI_INT, root=0, MPI_COMM_WORLD) failed > MPIR_Gather_impl(775).: > MPIR_Gather(735)......: > MPIR_Gather_intra(347): > MPIC_Send(360)........: Negative count, value is -1076887552 > _pmiu_daemon(SIGCHLD): [NID 00307] [c1-0c1s12n3] [Thu Nov 26 09:40:32 2015] PE RANK 1024 exit signal Aborted > [NID 00307] 2015-11-26 09:40:32 Apid 949446: initiated application termination > Application 949446 exit codes: 134 > Application 949446 exit signals: Killed > Application 949446 resources: utime ~1s, stime ~134s, Rss ~3157072, inblocks ~617780, outblocks ~1659351 > ____________________________ > > 8 processes - 625 MB (5000 MB total) -> works! > > I can think of some pitfalls that might cause this issue but I do not have the knowledge of the internally called routines to check them. Is someone familier with the implementation of MPI_Gather(...) and willing to help me? > > Best regards > > Florian > > Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR) > German Aerospace Center > Institute of Planetary Research | Planetary Physics | Rutherfordstraße 2 | 12489 Berlin > > Florian Willich| Intern - Software Developer (Parallel Applications) > florian.willlich(a)dlr.de > DLR.de > _______________________________________________ > discuss mailing list discuss(a)mpich.org > To manage subscription options or unsubscribe: > https://lists.mpich.org/mailman/listinfo/discuss > > _______________________________________________ > discuss mailing list discuss(a)mpich.org > To manage subscription options or unsubscribe: > https://lists.mpich.org/mailman/listinfo/discuss > > _______________________________________________ > discuss mailing list discuss(a)mpich.org > To manage subscription options or unsubscribe: > https://lists.mpich.org/mailman/listinfo/discuss > -- Rob Latham Mathematics and Computer Science Division Argonne National Lab, IL USA _______________________________________________ discuss mailing list discuss(a)mpich.org To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss

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Re: [mpich-discuss] Building MPE for use with OpenMPI
by Jeff Hammond 01 Dec '15

01 Dec '15

Herbert: Please try https://github.com/jeffhammond/mpich/tree/hammond-mpi2-deprecated-functions… and let me know if you see any problems. Best, Jeff On Tue, Dec 1, 2015 at 5:46 AM, Schilling, Herbert W. (GRC-VE00) < hschilling(a)nasa.gov> wrote: > Hi Jeff and Pavan, > > Thanks for all the help on this. Jeff, when you have the fix up there, I > can give it a shot! > > > On Dec 1, 2015, at 1:15 AM, Jeff Hammond <jeff.science(a)gmail.com> > wrote: > > Facepalm. Indeed, changing the header but not the implementation was > pretty dumb on my part. I'll fix that tomorrow. > > I have no opinion on the ABI situation, particularly since I know there > are other folks that Intel that do. > > Jeff > > On Mon, Nov 30, 2015 at 9:00 PM, Balaji, Pavan <balaji(a)anl.gov> wrote: > >> >> Thanks, Jeff. The actual function definitions should be modified as >> well, which your patch seems to miss. >> >> But I think the potentially time consuming part is to get buy-in from all >> the ABI consortium folks for this change. It doesn't exactly break ABI for >> applications, but will be an annoying change for tools. Ken is looking >> into this. >> >> -- Pavan >> >> > On Nov 30, 2015, at 10:54 PM, Jeff Hammond <jeff.science(a)gmail.com> >> wrote: >> > >> > Pavan: >> > >> > See hammond-mpi2-deprecated-functions-noconst branch on mpich-review. >> I found three functions where this change should be made. I do not know if >> that is the full list, so someone should verify. >> > >> > Best, >> > >> > Jeff >> > >> > On Mon, Nov 30, 2015 at 8:08 PM, Balaji, Pavan <balaji(a)anl.gov> wrote: >> > >> > MPI_Type_struct is not a part of the MPI standard anymore and is >> replaced by MPI_Type_create_struct. Both MPICH and Open MPI decided to >> retain it, but followed different directions for it. MPICH decided to >> follow the same convention as MPI_Type_create_struct with the const >> additions. Open MPI decided to keep the old prototypes as is. >> > >> > Unfortunately, MPE got stuck in between the two. The best approach >> would be to simply remove those functions from MPE and this problem just >> goes away. Would you be able to do that and contribute a patch? >> > >> > More generally, I think MPICH was overzealous in trying to constify >> prototypes for the deleted functions. It should have just left them as >> they are, like what Open MPI did. We'll figure out what to do about that >> internally, but that's not going to be a quick change because of ABI and >> other such stuff. >> > >> > Thanks, >> > >> > -- Pavan >> > >> > > On Nov 30, 2015, at 8:14 PM, Schilling, Herbert W. (GRC-VE00) < >> hschilling(a)nasa.gov> wrote: >> > > >> > > Hi, >> > > >> > > I am trying to build MPE for use with OpenMPI. I built from source >> Version 1.10.1 of OpenMPI. >> > > >> > > I am using this version of MPE >> ftp://ftp.mcs.anl.gov/pub/mpi/mpe/mpe2.tar.gz >> > > >> > > Should this work fine? I followed the instructions to build like >> this: >> > > >> > > ${MPE_SRC_DIR}/configure MPI_CC=${OPENMPI_INSTALL_DIR}/bin/mpicc \ >> > > CC=<C_COMPILER_used_to_build_OpenMPI> \ >> > > MPI_F77=${OPENMPI_INSTALL_DIR}/bin/mpif77 >> \ >> > > >> F77=<FORTRAN_COMPILER_used_to_build_OpenMPI> \ >> > > --with-java2=/usr/local/j2sdk-1.4.2 >> > > --prefix=<MPE_INSTALL_DIR> >> > > make >> > > make install >> > > >> > > >> > > >> > > >> > > I keep running into problems with conflicting declarations >> > > >> > > >> > > log_mpi_core.c:5611: error: conflicting types for 'MPI_Type_struct' >> > > /u/hschilli/local/include/mpi.h:1796: error: previous declaration of >> 'MPI_Type_struct' was here >> > > >> > > >> > > I think the issue is that MPE's declaration uses some const >> qualifiers while OpenMPI does not. >> > > >> > > >> > > >> > > I tried hacking my way through this with the macro >> > > >> > > HAVE_CONST_IN_MPI_DECL >> > > and MPE_CONST but no luck so far. >> > > >> > > >> > > >> > > What am I doing wrong? >> > > >> > > >> > > Thanks in advance. >> > > >> > > --------- >> > > Herb Schilling >> > > Scientific Applications and Visualization Team >> > > http://ocio.grc.nasa.gov/gvis >> > > Office of the Chief Information Officer >> > > NASA Glenn Research Center >> > > hschilling(a)nasa.gov >> > > >> > > >> > > >> > > >> > > _______________________________________________ >> > > discuss mailing list discuss(a)mpich.org >> > > To manage subscription options or unsubscribe: >> > > https://lists.mpich.org/mailman/listinfo/discuss >> > >> > _______________________________________________ >> > discuss mailing list discuss(a)mpich.org >> > To manage subscription options or unsubscribe: >> > https://lists.mpich.org/mailman/listinfo/discuss >> > >> > >> > >> > -- >> > Jeff Hammond >> > jeff.science(a)gmail.com >> > http://jeffhammond.github.io/ >> > _______________________________________________ >> > discuss mailing list discuss(a)mpich.org >> > To manage subscription options or unsubscribe: >> > https://lists.mpich.org/mailman/listinfo/discuss >> >> _______________________________________________ >> discuss mailing list discuss(a)mpich.org >> To manage subscription options or unsubscribe: >> https://lists.mpich.org/mailman/listinfo/discuss >> > > > > -- > Jeff Hammond > jeff.science(a)gmail.com > http://jeffhammond.github.io/ > _______________________________________________ > discuss mailing list discuss(a)mpich.org > To manage subscription options or unsubscribe: > https://lists.mpich.org/mailman/listinfo/discuss > > > --------- > Herb Schilling > Scientific Applications and Visualization Team > http://ocio.grc.nasa.gov/gvis > Office of the Chief Information Officer > NASA Glenn Research Center > hschilling(a)nasa.gov > > > > > > _______________________________________________ > discuss mailing list discuss(a)mpich.org > To manage subscription options or unsubscribe: > https://lists.mpich.org/mailman/listinfo/discuss > -- Jeff Hammond jeff.science(a)gmail.com http://jeffhammond.github.io/ _______________________________________________ discuss mailing list discuss(a)mpich.org To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss

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Re: [mpich-discuss] Building MPE for use with OpenMPI
by Jeff Hammond 01 Dec '15

01 Dec '15

Pavan: Hopefully this is fixed by c970f0e1d2c82a674e8a235402617d6c60c23811 on the aforementioned branch. Jeff On Mon, Nov 30, 2015 at 10:15 PM, Jeff Hammond <jeff.science(a)gmail.com> wrote: > Facepalm. Indeed, changing the header but not the implementation was > pretty dumb on my part. I'll fix that tomorrow. > > I have no opinion on the ABI situation, particularly since I know there > are other folks that Intel that do. > > Jeff > > On Mon, Nov 30, 2015 at 9:00 PM, Balaji, Pavan <balaji(a)anl.gov> wrote: > >> >> Thanks, Jeff. The actual function definitions should be modified as >> well, which your patch seems to miss. >> >> But I think the potentially time consuming part is to get buy-in from all >> the ABI consortium folks for this change. It doesn't exactly break ABI for >> applications, but will be an annoying change for tools. Ken is looking >> into this. >> >> -- Pavan >> >> > On Nov 30, 2015, at 10:54 PM, Jeff Hammond <jeff.science(a)gmail.com> >> wrote: >> > >> > Pavan: >> > >> > See hammond-mpi2-deprecated-functions-noconst branch on mpich-review. >> I found three functions where this change should be made. I do not know if >> that is the full list, so someone should verify. >> > >> > Best, >> > >> > Jeff >> > >> > On Mon, Nov 30, 2015 at 8:08 PM, Balaji, Pavan <balaji(a)anl.gov> wrote: >> > >> > MPI_Type_struct is not a part of the MPI standard anymore and is >> replaced by MPI_Type_create_struct. Both MPICH and Open MPI decided to >> retain it, but followed different directions for it. MPICH decided to >> follow the same convention as MPI_Type_create_struct with the const >> additions. Open MPI decided to keep the old prototypes as is. >> > >> > Unfortunately, MPE got stuck in between the two. The best approach >> would be to simply remove those functions from MPE and this problem just >> goes away. Would you be able to do that and contribute a patch? >> > >> > More generally, I think MPICH was overzealous in trying to constify >> prototypes for the deleted functions. It should have just left them as >> they are, like what Open MPI did. We'll figure out what to do about that >> internally, but that's not going to be a quick change because of ABI and >> other such stuff. >> > >> > Thanks, >> > >> > -- Pavan >> > >> > > On Nov 30, 2015, at 8:14 PM, Schilling, Herbert W. (GRC-VE00) < >> hschilling(a)nasa.gov> wrote: >> > > >> > > Hi, >> > > >> > > I am trying to build MPE for use with OpenMPI. I built from source >> Version 1.10.1 of OpenMPI. >> > > >> > > I am using this version of MPE >> ftp://ftp.mcs.anl.gov/pub/mpi/mpe/mpe2.tar.gz >> > > >> > > Should this work fine? I followed the instructions to build like >> this: >> > > >> > > ${MPE_SRC_DIR}/configure MPI_CC=${OPENMPI_INSTALL_DIR}/bin/mpicc \ >> > > CC=<C_COMPILER_used_to_build_OpenMPI> \ >> > > MPI_F77=${OPENMPI_INSTALL_DIR}/bin/mpif77 >> \ >> > > >> F77=<FORTRAN_COMPILER_used_to_build_OpenMPI> \ >> > > --with-java2=/usr/local/j2sdk-1.4.2 >> > > --prefix=<MPE_INSTALL_DIR> >> > > make >> > > make install >> > > >> > > >> > > >> > > >> > > I keep running into problems with conflicting declarations >> > > >> > > >> > > log_mpi_core.c:5611: error: conflicting types for 'MPI_Type_struct' >> > > /u/hschilli/local/include/mpi.h:1796: error: previous declaration of >> 'MPI_Type_struct' was here >> > > >> > > >> > > I think the issue is that MPE's declaration uses some const >> qualifiers while OpenMPI does not. >> > > >> > > >> > > >> > > I tried hacking my way through this with the macro >> > > >> > > HAVE_CONST_IN_MPI_DECL >> > > and MPE_CONST but no luck so far. >> > > >> > > >> > > >> > > What am I doing wrong? >> > > >> > > >> > > Thanks in advance. >> > > >> > > --------- >> > > Herb Schilling >> > > Scientific Applications and Visualization Team >> > > http://ocio.grc.nasa.gov/gvis >> > > Office of the Chief Information Officer >> > > NASA Glenn Research Center >> > > hschilling(a)nasa.gov >> > > >> > > >> > > >> > > >> > > _______________________________________________ >> > > discuss mailing list discuss(a)mpich.org >> > > To manage subscription options or unsubscribe: >> > > https://lists.mpich.org/mailman/listinfo/discuss >> > >> > _______________________________________________ >> > discuss mailing list discuss(a)mpich.org >> > To manage subscription options or unsubscribe: >> > https://lists.mpich.org/mailman/listinfo/discuss >> > >> > >> > >> > -- >> > Jeff Hammond >> > jeff.science(a)gmail.com >> > http://jeffhammond.github.io/ >> > _______________________________________________ >> > discuss mailing list discuss(a)mpich.org >> > To manage subscription options or unsubscribe: >> > https://lists.mpich.org/mailman/listinfo/discuss >> >> _______________________________________________ >> discuss mailing list discuss(a)mpich.org >> To manage subscription options or unsubscribe: >> https://lists.mpich.org/mailman/listinfo/discuss >> > > > > -- > Jeff Hammond > jeff.science(a)gmail.com > http://jeffhammond.github.io/ > -- Jeff Hammond jeff.science(a)gmail.com http://jeffhammond.github.io/ _______________________________________________ discuss mailing list discuss(a)mpich.org To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss

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Re: [mpich-discuss] Building MPE for use with OpenMPI
by Schilling, Herbert W. (GRC-VE00) 01 Dec '15

01 Dec '15

Hi Jeff and Pavan, Thanks for all the help on this. Jeff, when you have the fix up there, I can give it a shot! On Dec 1, 2015, at 1:15 AM, Jeff Hammond <jeff.science(a)gmail.com<mailto:[email protected]>> wrote: Facepalm. Indeed, changing the header but not the implementation was pretty dumb on my part. I'll fix that tomorrow. I have no opinion on the ABI situation, particularly since I know there are other folks that Intel that do. Jeff On Mon, Nov 30, 2015 at 9:00 PM, Balaji, Pavan <balaji(a)anl.gov<mailto:[email protected]>> wrote: Thanks, Jeff. The actual function definitions should be modified as well, which your patch seems to miss. But I think the potentially time consuming part is to get buy-in from all the ABI consortium folks for this change. It doesn't exactly break ABI for applications, but will be an annoying change for tools. Ken is looking into this. -- Pavan > On Nov 30, 2015, at 10:54 PM, Jeff Hammond <jeff.science(a)gmail.com<mailto:[email protected]>> wrote: > > Pavan: > > See hammond-mpi2-deprecated-functions-noconst branch on mpich-review. I found three functions where this change should be made. I do not know if that is the full list, so someone should verify. > > Best, > > Jeff > > On Mon, Nov 30, 2015 at 8:08 PM, Balaji, Pavan <balaji(a)anl.gov<mailto:[email protected]>> wrote: > > MPI_Type_struct is not a part of the MPI standard anymore and is replaced by MPI_Type_create_struct. Both MPICH and Open MPI decided to retain it, but followed different directions for it. MPICH decided to follow the same convention as MPI_Type_create_struct with the const additions. Open MPI decided to keep the old prototypes as is. > > Unfortunately, MPE got stuck in between the two. The best approach would be to simply remove those functions from MPE and this problem just goes away. Would you be able to do that and contribute a patch? > > More generally, I think MPICH was overzealous in trying to constify prototypes for the deleted functions. It should have just left them as they are, like what Open MPI did. We'll figure out what to do about that internally, but that's not going to be a quick change because of ABI and other such stuff. > > Thanks, > > -- Pavan > > > On Nov 30, 2015, at 8:14 PM, Schilling, Herbert W. (GRC-VE00) <hschilling(a)nasa.gov<mailto:[email protected]>> wrote: > > > > Hi, > > > > I am trying to build MPE for use with OpenMPI. I built from source Version 1.10.1 of OpenMPI. > > > > I am using this version of MPE ftp://ftp.mcs.anl.gov/pub/mpi/mpe/mpe2.tar.gz > > > > Should this work fine? I followed the instructions to build like this: > > > > ${MPE_SRC_DIR}/configure MPI_CC=${OPENMPI_INSTALL_DIR}/bin/mpicc \ > > CC=<C_COMPILER_used_to_build_OpenMPI> \ > > MPI_F77=${OPENMPI_INSTALL_DIR}/bin/mpif77 \ > > F77=<FORTRAN_COMPILER_used_to_build_OpenMPI> \ > > --with-java2=/usr/local/j2sdk-1.4.2 > > --prefix=<MPE_INSTALL_DIR> > > make > > make install > > > > > > > > > > I keep running into problems with conflicting declarations > > > > > > log_mpi_core.c:5611: error: conflicting types for 'MPI_Type_struct' > > /u/hschilli/local/include/mpi.h:1796: error: previous declaration of 'MPI_Type_struct' was here > > > > > > I think the issue is that MPE's declaration uses some const qualifiers while OpenMPI does not. > > > > > > > > I tried hacking my way through this with the macro > > > > HAVE_CONST_IN_MPI_DECL > > and MPE_CONST but no luck so far. > > > > > > > > What am I doing wrong? > > > > > > Thanks in advance. > > > > --------- > > Herb Schilling > > Scientific Applications and Visualization Team > > http://ocio.grc.nasa.gov/gvis > > Office of the Chief Information Officer > > NASA Glenn Research Center > > hschilling(a)nasa.gov<mailto:[email protected]> > > > > > > > > > > _______________________________________________ > > discuss mailing list discuss(a)mpich.org<mailto:[email protected]> > > To manage subscription options or unsubscribe: > > https://lists.mpich.org/mailman/listinfo/discuss > > _______________________________________________ > discuss mailing list discuss(a)mpich.org<mailto:[email protected]> > To manage subscription options or unsubscribe: > https://lists.mpich.org/mailman/listinfo/discuss > > > > -- > Jeff Hammond > jeff.science(a)gmail.com<mailto:[email protected]> > http://jeffhammond.github.io/ > _______________________________________________ > discuss mailing list discuss(a)mpich.org<mailto:[email protected]> > To manage subscription options or unsubscribe: > https://lists.mpich.org/mailman/listinfo/discuss _______________________________________________ discuss mailing list discuss(a)mpich.org<mailto:[email protected]> To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss -- Jeff Hammond jeff.science(a)gmail.com<mailto:[email protected]> http://jeffhammond.github.io/ _______________________________________________ discuss mailing list discuss(a)mpich.org<mailto:[email protected]> To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss --------- Herb Schilling Scientific Applications and Visualization Team http://ocio.grc.nasa.gov/gvis Office of the Chief Information Officer NASA Glenn Research Center hschilling(a)nasa.gov<mailto:[email protected]> _______________________________________________ discuss mailing list discuss(a)mpich.org To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss

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MPICH v3.2 and SLRUM
by Andreas Gocht 01 Dec '15

01 Dec '15

Hey I tried to build an use mpich with slurm, sbatch and srun. Unfortunate it looks like MPI_Init doesn't work with srun. I got the following error: Fatal error in MPI_Init: Other MPI error, error stack: MPIR_Init_thread(474).................: MPID_Init(190)........................: channel initialization failed MPIDI_CH3_Init(89)....................: MPID_nem_init(272)....................: MPIDI_CH3I_Seg_commit(366)............: MPIU_SHMW_Hnd_deserialize(324)........: MPIU_SHMW_Seg_open(865)...............: MPIU_SHMW_Seg_create_attach_templ(637): open failed - No such file or directory In: PMI_Abort(4239887, Fatal error in MPI_Init: Other MPI error, error stack: MPIR_Init_thread(474).................: MPID_Init(190)........................: channel initialization failed MPIDI_CH3_Init(89)....................: MPID_nem_init(272)....................: MPIDI_CH3I_Seg_commit(366)............: MPIU_SHMW_Hnd_deserialize(324)........: MPIU_SHMW_Seg_open(865)...............: MPIU_SHMW_Seg_create_attach_templ(637): open failed - No such file or directory) I configured MPICH with "./configure --prefix=<some/prefix> --with-pmi=slurm --with-pm=none --with-slurm=<path/to/slurm>" and compiled my application with the "-L<path_to_slurm_lib> -lpmi" command. (as described in https://wiki.mpich.org/mpich/index.php/Frequently_Asked_Questions#Note_that…. and https://computing.llnl.gov/linux/slurm/mpi_guide.html#mpich2 ) I am running with 10 nodes and one task per node. Is there something I am missing during the configuration of MPICH? Best, Andreas -- M.Sc. Andreas Gocht Technische Universität Dresden Center for Information Services and High Performance Computing (ZIH) D-01062 Dresden Germany Contact: Willersbau, Room A 104 Phone: (+49) 351 463-36415 Fax: (+49) 351 463-3773 e-mail: andreas.gocht(a)tu-dresden.de _______________________________________________ discuss mailing list discuss(a)mpich.org To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss

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Re: [mpich-discuss] Building MPE for use with OpenMPI
by Jeff Hammond 01 Dec '15

01 Dec '15

Facepalm. Indeed, changing the header but not the implementation was pretty dumb on my part. I'll fix that tomorrow. I have no opinion on the ABI situation, particularly since I know there are other folks that Intel that do. Jeff On Mon, Nov 30, 2015 at 9:00 PM, Balaji, Pavan <balaji(a)anl.gov> wrote: > > Thanks, Jeff. The actual function definitions should be modified as well, > which your patch seems to miss. > > But I think the potentially time consuming part is to get buy-in from all > the ABI consortium folks for this change. It doesn't exactly break ABI for > applications, but will be an annoying change for tools. Ken is looking > into this. > > -- Pavan > > > On Nov 30, 2015, at 10:54 PM, Jeff Hammond <jeff.science(a)gmail.com> > wrote: > > > > Pavan: > > > > See hammond-mpi2-deprecated-functions-noconst branch on mpich-review. I > found three functions where this change should be made. I do not know if > that is the full list, so someone should verify. > > > > Best, > > > > Jeff > > > > On Mon, Nov 30, 2015 at 8:08 PM, Balaji, Pavan <balaji(a)anl.gov> wrote: > > > > MPI_Type_struct is not a part of the MPI standard anymore and is > replaced by MPI_Type_create_struct. Both MPICH and Open MPI decided to > retain it, but followed different directions for it. MPICH decided to > follow the same convention as MPI_Type_create_struct with the const > additions. Open MPI decided to keep the old prototypes as is. > > > > Unfortunately, MPE got stuck in between the two. The best approach > would be to simply remove those functions from MPE and this problem just > goes away. Would you be able to do that and contribute a patch? > > > > More generally, I think MPICH was overzealous in trying to constify > prototypes for the deleted functions. It should have just left them as > they are, like what Open MPI did. We'll figure out what to do about that > internally, but that's not going to be a quick change because of ABI and > other such stuff. > > > > Thanks, > > > > -- Pavan > > > > > On Nov 30, 2015, at 8:14 PM, Schilling, Herbert W. (GRC-VE00) < > hschilling(a)nasa.gov> wrote: > > > > > > Hi, > > > > > > I am trying to build MPE for use with OpenMPI. I built from source > Version 1.10.1 of OpenMPI. > > > > > > I am using this version of MPE > ftp://ftp.mcs.anl.gov/pub/mpi/mpe/mpe2.tar.gz > > > > > > Should this work fine? I followed the instructions to build like this: > > > > > > ${MPE_SRC_DIR}/configure MPI_CC=${OPENMPI_INSTALL_DIR}/bin/mpicc \ > > > CC=<C_COMPILER_used_to_build_OpenMPI> \ > > > MPI_F77=${OPENMPI_INSTALL_DIR}/bin/mpif77 \ > > > > F77=<FORTRAN_COMPILER_used_to_build_OpenMPI> \ > > > --with-java2=/usr/local/j2sdk-1.4.2 > > > --prefix=<MPE_INSTALL_DIR> > > > make > > > make install > > > > > > > > > > > > > > > I keep running into problems with conflicting declarations > > > > > > > > > log_mpi_core.c:5611: error: conflicting types for 'MPI_Type_struct' > > > /u/hschilli/local/include/mpi.h:1796: error: previous declaration of > 'MPI_Type_struct' was here > > > > > > > > > I think the issue is that MPE's declaration uses some const qualifiers > while OpenMPI does not. > > > > > > > > > > > > I tried hacking my way through this with the macro > > > > > > HAVE_CONST_IN_MPI_DECL > > > and MPE_CONST but no luck so far. > > > > > > > > > > > > What am I doing wrong? > > > > > > > > > Thanks in advance. > > > > > > --------- > > > Herb Schilling > > > Scientific Applications and Visualization Team > > > http://ocio.grc.nasa.gov/gvis > > > Office of the Chief Information Officer > > > NASA Glenn Research Center > > > hschilling(a)nasa.gov > > > > > > > > > > > > > > > _______________________________________________ > > > discuss mailing list discuss(a)mpich.org > > > To manage subscription options or unsubscribe: > > > https://lists.mpich.org/mailman/listinfo/discuss > > > > _______________________________________________ > > discuss mailing list discuss(a)mpich.org > > To manage subscription options or unsubscribe: > > https://lists.mpich.org/mailman/listinfo/discuss > > > > > > > > -- > > Jeff Hammond > > jeff.science(a)gmail.com > > http://jeffhammond.github.io/ > > _______________________________________________ > > discuss mailing list discuss(a)mpich.org > > To manage subscription options or unsubscribe: > > https://lists.mpich.org/mailman/listinfo/discuss > > _______________________________________________ > discuss mailing list discuss(a)mpich.org > To manage subscription options or unsubscribe: > https://lists.mpich.org/mailman/listinfo/discuss > -- Jeff Hammond jeff.science(a)gmail.com http://jeffhammond.github.io/ _______________________________________________ discuss mailing list discuss(a)mpich.org To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss

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