[petsc-dev] Mat Type: HYPRE

[Stefano Zampini]

2017-10-04 16:54 GMT+03:00 Kong, Fande <fande.kong at inl.gov>:

> Hi Stefano,
>
> Thanks for your email. The error arises from the first assembly.
>

That's strange. Can you provide a minimal working example to reproduce the
problem?

>
> Do you have any example demonstrating how to use HYPRE mat in PETSc? I
> would like to play around, and fix any issue I encounter.
>

Take a look at src/mat/examples/tests/ex115.c


>
> Thanks,
>
> Fande,
>
>
> On Wed, Oct 4, 2017 at 2:27 AM, Stefano Zampini <stefano.zampini at gmail.com
> > wrote:
>
>> Does this error arise at the first assembly of the matrix or in a
>> successive assembly?
>>
>> In the second case, I guess the issue is with HYPRE, or the way we are
>> passing the preallocation to HYPRE routines.
>> For some reasons that I'm not aware of, reassembling an HypreParCSR
>> matrix may have issues.
>> My knowledge of the HYPRE code is not so deep to tell you why.
>>
>> 2017-10-04 1:03 GMT+03:00 Kong, Fande <fande.kong at inl.gov>:
>>
>>> Hi ALL,
>>>
>>> There is a new Mat type: HYPRE in PETSc. I would like to try it out
>>> because it may save the memory if use a hypre preconditioner. When use a
>>> native PETSc type such as MPIAIJ, we need to keep an extra copy of Jacobian
>>> matrix usually for the hypre preconditioner.
>>>
>>> I was wondering if or not Mat HYPRE is complete. There are some errors
>>> when I am tring to use it. The code works fine with MPIAIJ.
>>>
>>>
>>> [0]PETSC ERROR: --------------------- Error Message
>>> -------------------------------------------------------------- [0]PETSC
>>> ERROR: Error in external library [0]PETSC ERROR: Error in
>>> HYPRE_IJMatrixAddToValues(): error code 1 [0]PETSC ERROR: See
>>> http://www.mcs.anl.gov/petsc/documentation/faq.html
>>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.mcs.anl.gov_petsc_documentation_faq.html&d=DwMFaQ&c=54IZrppPQZKX9mLzcGdPfFD1hxrcB__aEkJFOKJFd00&r=DUUt3SRGI0_JgtNaS3udV68GRkgV4ts7XKfj2opmiCY&m=E9mqRwrQ3kax5iMptBq__1jUmNZ3uujcOM1aXkMH9WI&s=sAvCaFdkzfe1gCJgHo1PgCvSYrVbl5iRbweHKpysIdk&e=>
>>> for trouble shooting. [0]PETSC ERROR: Petsc Development GIT revision:
>>> v3.8-2-gd4ad237  GIT Date: 2017-10-03 12:37:25 -0600 [0]PETSC ERROR:
>>> ../../../moose_test-opt on a arch-darwin-c-debug-master named FN604208 by
>>> kongf Tue Oct  3 15:54:15 2017 [0]PETSC ERROR: Configure options
>>> --with-debugging=yes --with-shared-libraries=1 --with-mpi=1
>>> --download-fblaslapack=1 --download-metis=1 --download-parmetis=1
>>> --download-superlu_dist=1 --download-hypre=1 --download-mumps=1
>>> --download-scalapack=1 PETSC_ARCH=arch-darwin-c-debug-master [0]PETSC
>>> ERROR: #1 MatSetValues_HYPRE() line 1014 in /Users/kongf/projects/petsc/src/mat/impls/hypre/mhypre.c
>>> [0]PETSC ERROR: #2 MatSetValues() line 1270 in
>>> /Users/kongf/projects/petsc/src/mat/interface/matrix.c application
>>> called MPI_Abort(MPI_COMM_WORLD, 1) - process 0 [unset]: write_line error;
>>> fd=-1 buf=:cmd=abort exitcode=1 : system msg for write_line failure : Bad
>>> file descriptor
>>>
>>>
>>> Fande,
>>>
>>
>>
>>
>> --
>> Stefano
>>
>
>


-- 
Stefano
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