slepc-3.22.2 2024-12-02

BVDuplicateResize

Creates a new basis vector object of the same type and dimensions as an existing one, but with possibly different number of columns.

#include "slepcbv.h" 
PetscErrorCode BVDuplicateResize(BV V,PetscInt m,BV *W)

Collective

	V	- basis vectors context
	m	- the new number of columns

- location to put the new BV

This is equivalent of a call to BVDuplicate() followed by BVResize(). The contents of V are not copied to W.

intermediate