BVNorm

Computes the matrix norm of the BV.

Synopsis

#include "slepcbv.h" 
PetscErrorCode BVNorm(BV bv,NormType type,PetscReal *val)

Collective

Input Parameters

• bv - basis vectors

• type - the norm type

Output Parameter

• val - the norm

Notes

All active columns (except the leading ones) are considered as a matrix. The allowed norms are NORM_1, NORM_FROBENIUS, and NORM_INFINITY.

This operation fails if a non-standard inner product has been specified with BVSetMatrix().

See Also

BVNormVec(), BVNormColumn(), BVNormalize(), BVSetActiveColumns(), BVSetMatrix()

Level

intermediate

Location

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

Implementations

BVNorm_Contiguous() in src/sys/classes/bv/impls/contiguous/contig.c
BVNorm_Mat() in src/sys/classes/bv/impls/mat/bvmat.c
BVNorm_Svec() in src/sys/classes/bv/impls/svec/svec.c
BVNorm_Tensor() in src/sys/classes/bv/impls/tensor/bvtensor.c
BVNorm_Vecs() in src/sys/classes/bv/impls/vecs/vecs.c

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