petsc-3.8.4 2018-03-24
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MatTransColoringApplyDenToSp

 Given a symbolic matrix product Csp=A*B^T for which a MatTransposeColoring context has been created and a dense matrix Cden=A*Btdense in which Btdens is obtained from MatTransColoringApplySpToDen(), recover sparse matrix Csp from Cden.

Synopsis

#include "petscmat.h" 
PetscErrorCode MatTransColoringApplyDenToSp(MatTransposeColoring matcoloring,Mat Cden,Mat Csp)
Collective on MatTransposeColoring

Input Parameters

coloring - coloring context created with MatTransposeColoringCreate()
Cden - matrix product of a sparse matrix and a dense matrix Btdense

Output Parameter

Csp -sparse matrix

Notes: These are used internally for some implementations of MatRARt()

See Also

MatTransposeColoringCreate(), MatTransposeColoringDestroy(), MatTransColoringApplySpToDen()

Keywords

coloring

Level:advanced
Location:src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages