On Wed, Dec 21, 2011 at 11:30, <E.T.A.vanderWeide at utwente.nl> wrote:
> ierr = MatShellSetContext(mat, this); > This is fine. > CHKERRQ(ierr); > > Later on in the call to MatShellGetContext I get the following error > [0]PETSC ERROR: MatShellGetContext() line 201 in > src/mat/impls/shell/shell.c Null Pointer: Parameter # 2 > You need to pass a valid address. Show us what this code looks like. It should be something like MyContext *ptr; MatShellGetContext(mat,&ptr); -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20111221/43c871bb/attachment.htm>
