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

[Jean-Michel Campin]

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
> > > >
> > > >
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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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