[petsc-dev] MetSetBlockSize issue

Barry Smith bsmith at mcs.anl.gov
Mon Apr 23 16:59:18 CDT 2012


  It was changed a while ago that MatSetBlockSize() couldn't be set after the matrix was full instantiated. I guess that example did not get fixed because it is not listed in the makefile to run in the makeall.

   I have fixed the example to call MatSetBlockSize() at a safe point.

   Barry

On Apr 23, 2012, at 4:29 PM, Mark F. Adams wrote:

> ex55.c in ksp is failing with:
> 
> [0]PETSC ERROR: --------------------- Error Message ------------------------------------
> [0]PETSC ERROR: Arguments are incompatible!
> [0]PETSC ERROR: Cannot change block size 1 to 2!
> [0]PETSC ERROR: ------------------------------------------------------------------------
> 
> on this line 57 of ex55.c:
> 
>  ierr = MatSetBlockSize(Amat,2);      CHKERRQ(ierr);
> 
> Any idea what happened here?  
> 
> Mark




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