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

[Barry Smith]

  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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