[MITgcm-devel] [MITgcm-cvs] MITgcm/verification/halfpipe_streamice/results CVS Commit

Sat Sep 6 13:34:48 EDT 2014

Hi Dan,

On baudelaire, after setting the correct env var (as listed in
 ../tools/build_options/linux_amd64_gfortran ), i.e.:
  export MPI_GCC_DIR=/srv/software/gcc/gcc-packages/gcc-4.4.5/mpich2/mpich2-1.3
  export MPI_INC_DIR=$MPI_GCC_DIR/include
  export PATH=$MPI_GCC_DIR/bin:$PATH
you can run:
 ./testresport -t halfpipe_streamice -MPI 2 -of ../tools/build_options/linux_amd64_gfortran
and it will use:
 halfpipe_streamice/code/SIZE.h_mpi
(if you use "-mpi" instead of "-MPI 2" it will do the same thing
 since the max # of procs in SIZE.h_mpi is nPx*nPy=2)

Cheers,
Jean-Michel

On Sat, Sep 06, 2014 at 05:19:51PM +0100, Daniel Goldberg wrote:
> OK, thank you.
> 
> I might have found the bug, but to be certain, what is the standard mpi
> test? Will
> 
> ./testresport -t halfpipe_streamice -mpi
> 
> be sufficient? I ask because the standard test already uses 2 tiles, and so
> i would think that the 2-proc mpi test (above) would not give different
> results.
> 
> 
> 
> On Sat, Sep 6, 2014 at 4:18 PM, Jean-Michel Campin <jmc at ocean.mit.edu>
> wrote:
> 
> > Hi Dan,
> >
> > On Sat, Sep 06, 2014 at 03:39:22PM +0100, Daniel Goldberg wrote:
> > > Hi J-M,
> > >
> > > i did not actually see your last email, but i knew that i had broken
> > openad
> > > so i fixed it.
> > >
> > > i did not realize mpi was breaking, i did not do a -mpi verification test
> > > to check, but will in the future. i did not know about the mpi test, but
> > it
> > > is matched against output.txt?
> > testreport compares with the same output.txt
> >
> > >i didn't realize i had broken it, it could be due to one of my recent
> > changes.
> > OK, no problems.
> >
> > > Is the STREAMICE_FP_ERROR the only
> > > difference? if so i suspect i know the reason but will need to look into
> > > this. thank you for letting me know.
> > >
> > > dan
> >
> > To be more presice regarding MPI test:
> > 1) all the other than STREAMICE_FP_ERROR numbers that testreport collect
> >  have not changed, so it's good.
> > 2) STREAMICE_FP_ERROR output are sensitive to which compiler we
> > use, but the differences from compilers used to be (and, without MPI,
> >  are still) matching for 6 or 7 digits
> > 3) with the latest changes, the STREAMICE_FP_ERROR that we get with
> >  MPI are different enough from a non MPI output that we don't get
> >  any digits matching (whereas it use to be perfect matching between
> >  MPI and non MPI results).
> >
> > Cheers,
> > Jean-Michel
> >
> > > On Sat, Sep 6, 2014 at 3:24 PM, Jean-Michel Campin <jmc at ocean.mit.edu>
> > > wrote:
> > >
> > > > Hi Dan,
> > > >
> > > > OK, you fixed the OpenAD halfpipe_streamice, and it worked well
> > > > (last night daily testing).
> > > >
> > > > But there might be something strange with the forward test
> > > > when using MPI:
> > > > As of this morning, all the MPI halfpipe_streamice tests fail because
> > > > the STREAMICE_FP_ERROR (that testreport checks to decide for a fail of
> > > > pass)
> > > > is different enough (it used to be identical between a 2 procs MPI run
> > and
> > > > the reference 1 proc output):
> > > > for instance, on baudelaire with gfortran & mpich2-1.3,
> > > > the 1rst STREAMICE_FP_ERROR is now:
> > > > MPI 2 procs:
> > > > < (PID.TID 0000.0001) STREAMICE_FP_ERROR =  5.42568206198871E-05
> > > > --- reference 1 proc output (also = old MPI 2 procs):
> > > > > (PID.TID 0000.0001) STREAMICE_FP_ERROR =  6.72968409916551E-05
> > > >
> > > > Cheers,
> > > > Jean-Michel
> > > >
> > > > On Fri, Sep 05, 2014 at 02:57:53PM -0400, Jean-Michel Campin wrote:
> > > > > Hi Dan,
> > > > > Could you check also the Open-AD halfpipe_streamice test ?
> > > > > For some reasons, I am now getting some errors when trying to
> > > > > compile with OpenAD (on baudelaire).
> > > > > Cheers,
> > > > > Jean-Michel
> > > > >
> > > > > On Fri, Sep 05, 2014 at 02:43:24PM -0400, Daniel N. Goldberg,
> > 54-1423,
> > > > 6172532977,  wrote:
> > > > > > Update of /u/gcmpack/MITgcm/verification/halfpipe_streamice/results
> > > > > > In directory forge:/tmp/cvs-serv9683
> > > > > >
> > > > > > Modified Files:
> > > > > >     output_adm.txt
> > > > > > Log Message:
> > > > > > values changed after last commit, not sure why
> > > > > >
> > > > > >
> > > > > > _______________________________________________
> > > > > > MITgcm-cvs mailing list
> > > > > > MITgcm-cvs at mitgcm.org
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> > > > >
> > > > > _______________________________________________
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> > > >
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> > > >
> > >
> > >
> > >
> > > --
> > >
> > > Daniel Goldberg, PhD
> > > Lecturer in Glaciology
> > > School of Geosciences, University of Edinburgh
> > > Geography Building, Drummond Street, Edinburgh EH8 9XP
> > >
> > >
> > > em: D <dgoldber at mit.edu>an.Goldberg at ed.ac.uk
> > > web: http://ocean.mit.edu/~dgoldberg
> >
> > > _______________________________________________
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> > > MITgcm-devel at mitgcm.org
> > > http://mitgcm.org/mailman/listinfo/mitgcm-devel
> >
> >
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> > MITgcm-devel at mitgcm.org
> > http://mitgcm.org/mailman/listinfo/mitgcm-devel
> >
> 
> 
> 
> -- 
> 
> Daniel Goldberg, PhD
> Lecturer in Glaciology
> School of Geosciences, University of Edinburgh
> Geography Building, Drummond Street, Edinburgh EH8 9XP
> 
> 
> em: D <dgoldber at mit.edu>an.Goldberg at ed.ac.uk
> web: http://ocean.mit.edu/~dgoldberg

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