[petsc-users] Block matrix vector products?

[Tyler Chen]

Hello,

I am looking for a way to compute two matrix vector products
simultaneously, where the matrix is the same for both products (i.e. Ax and
Ay). I know some numerical libraries have the concept of "block vectors" or
"basis vectors" and was wondering if there is anything similar in PETSc.
Right now I am just using two MatMults sequentially, but I'm hoping there
are probably better ways to do this. My matrices are MPIAIJ if that makes
any difference.

Best,
Tyler
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