BVApplyMatrixBV#

Multiplies the BV vectors by the matrix representation of the inner product.

Synopsis#

#include "slepcbv.h" 
PetscErrorCode BVApplyMatrixBV(BV X,BV Y)

Neighbor-wise Collective

Input Parameter#

  • X - the basis vectors context

Output Parameter#

  • Y - the basis vectors to store the result (optional)

Note#

This function computes \(Y = B X\), where \(B\) is the matrix given with BVSetMatrix(). This operation is computed as in BVMatMult(). If no matrix was specified, then it just copies \(Y = X\).

If no Y is given, the result is stored internally in the cached BV.

See Also#

BV: Basis Vectors, BVSetMatrix(), BVApplyMatrix(), BVMatMult(), BVGetCachedBV()

Level#

developer

Location#

src/sys/classes/bv/interface/bvbasic.c

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