#include "slepceps.h" PetscErrorCode EPSPRIMMESetBlockSize(EPS eps,PetscInt bs)Logically Collective
| eps | - the eigenproblem solver context | |
| bs | - block size |
| -eps_primme_blocksize | - Sets the max allowed block size value |
The user should set the block size based on the architecture specifics of the target computer, as well as any a priori knowledge of multiplicities. The code does NOT require bs > 1 to find multiple eigenvalues. For some methods, keeping bs = 1 yields the best overall performance.