slepc-3.22.2 2024-12-02

BVCreateVecEmpty

Creates a new Vec object with the same type and dimensions as the columns of the basis vectors object, but without internal array.

#include "slepcbv.h" 
PetscErrorCode BVCreateVecEmpty(BV bv,Vec *v)

Collective

- the basis vectors context

- the new vector

This works as BVCreateVec(), but the new vector does not have the array allocated, so the intended usage is with VecPlaceArray().

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