[petsc-dev] Mat Type: HYPRE

[Kong, Fande]

Hi Stefano,

Thanks for your email. The error arises from the first assembly.

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.

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
>
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