Hi, I am performing a matrix multiplication of two dense matrices with both MatMatMult and MatMatMultTranspose. What do I choose a fill factor as? According to the definition in the documentation: fiill = expected fill as ratio of nnz(C)/(nnz(A) + nnz(B)). So, If I have two full matrices A and B, I will get a full matrix as my result. Hence, the fill factor will be 0.5. However, both these methods give an error with a fill factor less than 1.0. Also, if I use PETSC_DFAULT as the fill argument, it agains results in an error since its value is -2.
Kindly help me with your advice here. Thanks Manav -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20070218/0e941af4/attachment.htm>
