strange behaviour with PetscViewerBinary on MATIS

[Andreas Grassl]

Hello,

I want to save my Matrix A to disk and process it then with ksp/ksp/ex10. Doing
it for type AIJ is working fine.

Using type IS, it seems to save only the local matrix from one processor to the
disk and dump the others to stdout.

PetscViewerBinaryOpen(commw,"matrix.bin",FILE_MODE_WRITE,&viewer1);
MatView(A,viewer1);

Is the only workaround to save the LocalToGlobalMapping and the local matrices
separately and to read in all this information or do you see an easier way?

Is there a canonical way to save and restore the LocalToGlobalMapping?

Cheers,

ando

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