MatLRCGetMats#

Returns the constituents of an LRC matrix

Synopsis#

#include "petscmat.h" 
PetscErrorCode MatLRCGetMats(Mat N, Mat *A, Mat *U, Vec *c, Mat *V)

Collective

Input Parameter#

N - matrix of type MATLRC

Output Parameters#

A - the (sparse) matrix
U - first dense rectangular (tall and skinny) matrix
c - a sequential vector containing the diagonal of C
V - second dense rectangular (tall and skinny) matrix

Notes#

The returned matrices need not be destroyed by the caller.

U, c, V may be NULL if not needed

See Also#

Matrices, Mat, MATLRC, MatCreateLRC()

Level#

intermediate

Location#

src/mat/impls/lrc/lrc.c

Implementations#

MatLRCGetMats_LRC in src/mat/impls/lrc/lrc.c

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