petsc-3.12.5 2020-03-29

MatLRCGetMats

Returns the constituents of an LRC matrix

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

Collective on Mat

N -matrix of type LRC

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

The returned matrices need not be destroyed by the caller.

intermediate