[petsc-dev] [Fortran] MatLoad() error: MatLoad is not supported for type: mpiaij!

[Leo van Kampenhout]

Barry, do you think this is related? I want to check if the same matrix A is
symmetric (on a single-core run) with the method
MatIsSymmetric<http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-dev/docs/manualpages/Mat/MatIsSymmetric.html>and
it gives me the following error:

[0]PETSC ERROR: --------------------- Error Message
------------------------------------
[0]PETSC ERROR: No support for this operation for this object type!
[0]PETSC ERROR: Matrix of type <mpiaij> does not support checking for
symmetric!
[0]PETSC ERROR:
------------------------------------------------------------------------
[0]PETSC ERROR: Petsc Development HG revision:
f455c9a70d2481389bc32b93c86e379cadcf41e1  HG Date: Wed Sep 01 09:04:54 2010
-0400
[0]PETSC ERROR: See docs/changes/index.html for recent updates.
[0]PETSC ERROR: See docs/faq.html for hints about trouble shooting.
[0]PETSC ERROR: See docs/index.html for manual pages.
[0]PETSC ERROR:
------------------------------------------------------------------------
[0]PETSC ERROR: ./main on a arch-linu named wingtip72 by csg4035 Wed Sep  1
16:54:47 2010
[0]PETSC ERROR: Libraries linked from
/net/users/csg/csg4035/install/petsc-dev/arch-linux-gnu-c-debug/lib
[0]PETSC ERROR: Configure run at Wed Sep  1 16:36:01 2010
[0]PETSC ERROR: Configure options
[0]PETSC ERROR:
------------------------------------------------------------------------
[0]PETSC ERROR: MatIsSymmetric() line 7214 in src/mat/interface/matrix.c





2010/9/1 Barry Smith <bsmith at mcs.anl.gov>

>   if (size > 1) {
>     /* change viewer to display matrix in natural ordering */
>     ierr = MatShellSetOperation(A, MATOP_VIEW, (void (*)(void))
> MatView_MPI_DA);CHKERRQ(ierr);
>     /* turn off loading of matrix because loading would require proper
> permutation I don't feel like writing now */
>     ierr = MatShellSetOperation(A, MATOP_LOAD, (void (*)(void))
> 0);CHKERRQ(ierr);
>   }
>
>
>   Shri,
>
>     Could you please add the support for this? And push to petsc-dev
>
>     Thanks
>
>      Barry
>
>
> On Sep 1, 2010, at 10:23 AM, Leo van Kampenhout wrote:
>
>
> Using a DA, of equal size and type as the other one. The curious thing is
> that there are no problems on a single core run. (but that is not what I
> want ;)
>
>
>
> 2010/9/1 Barry Smith <bsmith at mcs.anl.gov>
>
>>
>>    Did you get the matrix in the writer code using a DA or some other code
>> that puts the vector from the 2d or 3d problem in the natural ordering on
>> the binary file.
>>
>>    Barry
>>
>> On Sep 1, 2010, at 9:55 AM, Leo van Kampenhout wrote:
>>
>> Hi all,
>>
>> I'm having trouble with MatLoad on Petsc-Dev. Not sure if this problem
>> also exists in the main PETSc 3.1 since my code won't compile on that.
>> The problematic calls are as follows:
>>
>>       call PetscViewerBinaryOpen(PETSC_COMM_WORLD,file2,
>>      &     FILE_MODE_READ,fd,ierr)
>>       call DAGetMatrix(da,MATMPIAIJ,A,ierr)
>>       call MatLoad(A,fd,ierr)
>>
>> which supposedly will load a matrix A which is stored by the following
>> commands:
>>
>>       call PetscViewerBinaryOpen(PETSC_COMM_WORLD,file2,
>>      &     FILE_MODE_WRITE,fd,ierr)
>>       call MatView(A,fd,ierr)
>>
>> by another program (on a single core). The MatLoad() does work perfectly
>> on a single core, however two or more cores make the program crash with the
>> following error (see below)
>> The programcall is
>>  mpirun -n 2 ./main
>>
>> Is something broken with Petsc or do I need to set some extra parameters?
>> Thanks in advance,
>>
>> Leo van Kampenhout
>>
>> PS. I'm using a build from last friday, since when I updated petsc-dev
>> today using Mercurial I couldnt get it to configure or compile :S (which is
>> another subject)
>>
>>
>> [0]PETSC ERROR: --------------------- Error Message
>> ------------------------------------
>> [0]PETSC ERROR: No support for this operation for this object type!
>> [0]PETSC ERROR: MatLoad is not supported for type: mpiaij!
>> [0]PETSC ERROR:
>> ------------------------------------------------------------------------
>> [0]PETSC ERROR: Petsc Development HG revision:
>> 84fec3ca75412473b06251029b58f2a68f1334f3  HG Date: Fri Aug 27 07:06:08 2010
>> +0200
>> [0]PETSC ERROR: See docs/changes/index.html for recent updates.
>> [0]PETSC ERROR: See docs/faq.html for hints about trouble shooting.
>> [0]PETSC ERROR: See docs/index.html for manual pages.
>> [0]PETSC ERROR:
>> ------------------------------------------------------------------------
>> [0]PETSC ERROR: ./main on a arch-linu named wingtip72 by csg4035 Wed Sep
>> 1 15:52:11 2010
>> [0]PETSC ERROR: Libraries linked from
>> /net/users/csg/csg4035/install/petsc-dev/arch-linux-gnu-c-debug/lib
>> [0]PETSC ERROR: Configure run at Fri Aug 27 08:37:32 2010
>> [0]PETSC ERROR: Configure options
>> [0]PETSC ERROR:
>> ------------------------------------------------------------------------
>> [0]PETSC ERROR: MatLoad() line 843 in src/mat/interface/matrix.c
>>
>>
>>
>>
>
>
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