[petsc-users] Scalability

[SCOTTO Alexandre]

Dear PETSc community,

I have conducted a quick strong scalability-like test on direct and adjoint matrix-vector product with a 25,000 x 25,000 sparse matrix, distributed over 2, 4, ..., 32 and 64 processes and the results I obtained were not so great.
I am not very confident in my setup, so a as a matter of reference, is there any available results on weak and strong scalability of PETSc.Mat mult() and multTranspose() operations?

Best regards,
Alexandre.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20260212/7187fe3d/attachment.html>