[petsc-dev] Fwd: no petsc on Edison

[Zhang, Hong]

master still uses
PetscTableCreate(aN,aN,&ta);

I guess Satish latest change in PetscTable uses more memory than previous one, thus input aN
starts causing problem. 

I believe replacing 1st aN with A->cmap->n will fix the problem.
Please give it a try. 

Hong

________________________________________
From: Barry Smith [bsmith at mcs.anl.gov]
Sent: Wednesday, January 11, 2017 2:55 PM
To: Kong, Fande; Zhang, Hong
Cc: Mark Adams; petsc-dev; David Trebotich
Subject: Re: [petsc-dev] Fwd: no petsc on Edison

> On Jan 11, 2017, at 2:41 PM, Kong, Fande <fande.kong at inl.gov> wrote:
>
> We do not run the code with Satish's fixes, instead, we are using petsc-3.7.3 and there are not such issues. I guess the issues are introduced recently.

  Ok, then I am confused. Maybe master fixes the problem?


>
> Fande,
>
> On Wed, Jan 11, 2017 at 1:31 PM, Mark Adams <mfadams at lbl.gov> wrote:
> Argh, yes that has to be the local size or a least not the global size.
>
> On Wed, Jan 11, 2017 at 3:15 PM, Satish Balay <balay at mcs.anl.gov> wrote:
> >>>
> aN=A->cmap->N
> ierr = PetscTableCreate(aN,aN,&ta);CHKERRQ(ierr);
> <<<
>
> Looks like thats a 'global' size. That doesn't look right.
>
> https://bitbucket.org/petsc/petsc/commits/c373ccc6#chg-src/mat/impls/aij/mpi/mpimatmatmult.c
>
> I see Hong had previously updated this code. Will have to recheck..
>
> Satish
>
> On Wed, 11 Jan 2017, Mark Adams wrote:
>
> > >
> > >
> > > Must be the same place Fande encountered this error.
> > >
> > >
> > Satish, here is our stack trace. Do you have any thoughts vis-a-vis Fande's
> > experience what the problem is here?  My best guess is that the local
> > matrix size is huge, but this code can have some very large stencils.
> >
> > Treb: about how many processors have this error? Is is it just one, a few,
> > or tons?
> >
> > [5]PETSC ERROR: Argument out of range
> > [5]PETSC ERROR: A really huge hash is being requested.. cannot process:
> > 67108864
> > [5]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html for
>
> > trouble shooting.
> > [5]PETSC ERROR: Petsc Development GIT revision: v3.7.4-2584-g7175242 GIT
> > Date: 2016-12-21 13:19:16 -0600
> > [5]PETSC ERROR: /tmp/targetExec on a arch-xc30-dbg64-intel named nid00013
> > by u6338 Sat Jan  7 18:35:34 2017
> > [5]PETSC ERROR: Configure options --COPTFLAGS="-O0 -g -no-ipo"
> > --CXXOPTFLAGS="-O0 -g -no-ipo" --FOPTFLAGS="-O0 -g -ipo"
> > --download-parmetis --download-metis --download-hypre --with-ssl=0
> > --with-cc=cc --with-clib-autodetect=0 --with-cxx=CC
> > --with-cxxlib-autodetect=0 --with-debugging=1 --with-fc=ftn
> > --with-fortranlib-autodetect=0 --with-shared-libraries=0 --with-x=0
> > --with-mpiexec=srun LIBS=-lstdc++ --with-64-bit-indices
> > --prefix=/global/homes/m/madams/petsc_install/petscv3.7-xc3[1983]PETSC
> > ERROR: --------------------- Error Message ------------------------------
> > --------------------------------
> >
> > [5]PETSC ERROR: [522]PETSC ERROR: --------------------- Error Message
> > ----------
> >
> > [5]PETSC ERROR: #2 PetscTableCreate() line 52 in
> > /global/u2/m/madams/petsc_install/petsc/src/sys/utils/ctable.c
> > [5]PETSC ERROR: #3 MatTransposeMatMultSymbolic_MPIAIJ_MPIAIJ() line 1691 in
> > /global/u2/m/madams/petsc_install/petsc/src/mat/impls/aij/
> > mpi/mpimatmatmult.c
> > [5]PETSC ERROR: #4 MatTransposeMatMult_MPIAIJ_MPIAIJ() line 917 in
> > /global/u2/m/madams/petsc_install/petsc/src/mat/impls/aij/
> > mpi/mpimatmatmult.c
> > [5]PETSC ERROR: [608]PETSC ERROR: --------------------- Error Message
> > ----------
> >
> > [5]PETSC ERROR: #6 PCGAMGCoarsen_AGG() line 955 in
> > /global/u2/m/madams/petsc_install/petsc/src/ksp/pc/impls/gamg/agg.c
> > [5]PETSC ERROR: #7 PCSetUp_GAMG() line 524 in /global/u2/m/madams/petsc_inst
> > all/petsc/src/ksp/pc/impls/gamg/gamg.c
> > [5]PETSC ERROR: #8 PCSetUp() line 968 in /global/u2/m/madams/petsc_inst
> > all/petsc/src/ksp/pc/interface/precon.c
> > [5]PETSC ERROR: #9 KSPSetUp() line 393 in /global/u2/m/madams/petsc_inst
> > all/petsc/src/ksp/ksp/interface/itfunc.c
> > [5]PETSC ERROR: [1640]PETSC ERROR: --------------------- Error Message -----
> >
> >
> > > MatSetUpMultiply_MPIAIJ() does:
> > >
> > >   ierr = PetscTableCreate(aij->B->rmap->n,mat->cmap->N+1,&gid1_lid1);
> > > CHKERRQ(ierr);
> > >
> > > So the local matrix size (n) must be: 4294967296
> > >
> > > [assuming atleast one nonzero per row - the local matrix itself must use
> > > more memory than the hash-table..]
> > >
> > > Satish
> > >
> >
>
>
>