[petsc-dev] Segmentation faults in MatMatMult & MatTransposeMatMult

Zhang, Hong hzhang at mcs.anl.gov
Mon Jan 14 15:30:58 CST 2019


Replace
ierr = MatSetType(A, MATMPIAIJ);CHKERRQ(ierr);
to
ierr = MatSetType(A, MATAIJ);CHKERRQ(ierr);

Replace
ierr = MatSetType(B, MATMPIDENSE)i;CHKERRQ(ierr);
to
ierr = MatSetType(B, MATDENSE)i;CHKERRQ(ierr);

Then add
MatSeqAIJSetPreallocation()
MatSeqDenseSetPreallocation()

Hong

On Mon, Jan 14, 2019 at 2:51 PM Pierre Jolivet via petsc-dev <petsc-dev at mcs.anl.gov<mailto:petsc-dev at mcs.anl.gov>> wrote:
Hello,
Is there any chance to get MatMatMult_MPIAIJ_MPIDense  and MatTransposeMatMult_MPIAIJ_MPIDense fixed so that the attached program could run _with a single_ process? (I know, I could switch to SeqAIJ_SeqDense, but that is not an option I have right now)

Thanks in advance,
Pierre

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