On Fri, Feb 3, 2012 at 11:20, Thomas Witkowski < thomas.witkowski at tu-dresden.de> wrote:
> I'll try it. Is there any difference between using MATMPIAIJ and > MatSetBlockSize, and using MATMPIBAIJ? There should not be a semantic difference. BAIJ is more memory and time efficient for any kernels used by PETSc, but it cannot be used directly by BoomerAMG, so it needs to be converted (increasing storage). So depending on how much time you spend in different parts of code, and how much memory you have available, either one could be faster. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120203/97ca6c95/attachment.htm>
