petsc-3.12.5 2020-03-29
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MatMPIAdjSetPreallocation

Sets the array used for storing the matrix elements

Synopsis

#include "petscmat.h" 
PetscErrorCode  MatMPIAdjSetPreallocation(Mat B,PetscInt *i,PetscInt *j,PetscInt *values)
Logically Collective

Input Parameters

A - the matrix
i - the indices into j for the start of each row
j - the column indices for each row (sorted for each row). The indices in i and j start with zero (NOT with one).
values - [optional] edge weights

See Also

MatCreate(), MatCreateMPIAdj(), MatSetValues()

Level

intermediate

Location

src/mat/impls/adj/mpi/mpiadj.c

Implementations

MatMPIAdjSetPreallocation_MPIAdj in src/mat/impls/adj/mpi/mpiadj.c

Index of all Mat routines
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Index of all manual pages