[petsc-users] several MPIDense functions

[Jed Brown]

On Thu, 20 May 2010 18:23:51 -0500, Yujie <recrusader at gmail.com> wrote:
> Dear Jed,
> 
> Thank you for your help. I have debugged the codes. However, the
> errors appear when running Line 135 of the following codes:
> 
> "126: PetscErrorCode  MatRealPart(Mat mat)
> 127: {
> 
> 133:   if (!mat->assembled) SETERRQ(PETSC_ERR_ARG_WRONGSTATE,"Not for
> unassembled matrix");
> 134:   if (mat->factor) SETERRQ(PETSC_ERR_ARG_WRONGSTATE,"Not for
> factored matrix");
> 135:   if (!mat->ops->realpart) SETERRQ1(PETSC_ERR_SUP,"Mat type
> %s",((PetscObject)mat)->type_name);
> 136:   MatPreallocated(mat);
> 137:   (*mat->ops->realpart)(mat);
> 138:   return(0);
> 139: }"
> 
> That mean there is not MatRealPart function for MPIDense. How to check
> which functions I have added some functions for?

For best readability, do

  (gdb) set print pretty

Then look at the ops table.

  (gdb) print *mat->ops

Locate the slots that you are actually setting, and the ones that you
meant to set.

Jed