EPSPRIMMESetBlockSize

The maximum block size the code will try to use. The user should set this based on the architecture specifics of the target computer, as well as any a priori knowledge of multiplicities. The code does NOT require BlockSize > 1 to find multiple eigenvalues. For some methods, keeping BlockSize = 1 yields the best overall performance.

Synopsis

#include "slepceps.h" 
PetscErrorCode EPSPRIMMESetBlockSize(EPS eps,PetscInt bs)
Collective on EPS

Input Parameters

eps - the eigenproblem solver context
bs - block size

Options Database Key

-eps_primme_block_size - Sets the max allowed block size value

Notes

If the block size is not set, the value established by primme_initialize is used.

See Also

EPSPRIMMEGetBlockSize()

Location: src/eps/impls/primme/primmes.c
Index of all EPS routines
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Index of all manual pages