[petsc-users] question about MatMatMultTranspose

[Gao Bin]

Hi,

I would like to use PETSc perform matrix-matrix multiplication C=A*B^T. I notice that MatMatMultTranspose could calculate C=A^T*B, but which is not I want.

Does anyone know how to perform C=A*B^T using PETSc (I know I could first calculate B^T and call MatMatMult with A and B^T, but it might not be efficient, is it?)? Thank you in advance.

Cheers

Gao
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