petsc-3.7.7 2017-09-25

MatMatMultNumeric

Performs the numeric matrix-matrix product. Call this routine after first calling MatMatMultSymbolic().

Synopsis

#include "petscmat.h" 
PetscErrorCode MatMatMultNumeric(Mat A,Mat B,Mat C)

Neighbor-wise Collective on Mat

Input Parameters

	A	- the left matrix
	B	- the right matrix

Output Parameters

C -the product matrix, which was created by from MatMatMultSymbolic() or a call to MatMatMult().

Notes

C must have been created with MatMatMultSymbolic().

This routine is currently implemented for - pairs of AIJ matrices and classes which inherit from AIJ, C will be of type MATAIJ. - pairs of AIJ (A) and Dense (B) matrix, C will be of type Dense. - pairs of Dense (A) and AIJ (B) matrix, C will be of type Dense.

Examples