petsc-3.11.4 2019-09-28
MatMPIDenseSetPreallocation
Sets the array used to store the matrix entries
Synopsis
#include "petscmat.h"
PetscErrorCode MatMPIDenseSetPreallocation(Mat B,PetscScalar *data)
Not collective
Input Parameters
B -the matrix
data -optional location of matrix data. Set data=NULL for PETSc
to control all matrix memory allocation.
Notes
The dense format is fully compatible with standard Fortran 77
storage by columns.
The data input variable is intended primarily for Fortran programmers
who wish to allocate their own matrix memory space. Most users should
set data=NULL.
Keywords
matrix,dense, parallel
See Also
MatCreate(), MatCreateSeqDense(), MatSetValues()
Level
intermediate
Location
src/mat/impls/dense/mpi/mpidense.c
Implementations
MatMPIDenseSetPreallocation_MPIDense in src/mat/impls/dense/mpi/mpidense.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages