[petsc-dev] status of MatBlock vs MatNest?

Barry Smith bsmith at mcs.anl.gov
Wed Nov 14 21:29:26 CST 2012

   Is MatBlock needed now that MatNest exists?  Is MatBlock different enough that it is needed in addition to MatNest?

   MatBlock seems to support sparse matrices each entry of which is a sparse matrix with many rows and columns of blocks, is MatNest restricted to a smaller number of blocks?

   Is MatBlock working and tested?



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