#include "petscmat.h" PetscErrorCode MatSetValuesLocal(Mat mat,PetscInt nrow,const PetscInt irow,PetscInt ncol,const PetscInt icol,const PetscScalar y,InsertMode addv)Not Collective
|mat||- the matrix|
|nrow, irow||- number of rows and their local indices|
|ncol, icol||- number of columns and their local indices|
|y||- a logically two-dimensional array of values|
|addv||- either INSERT_VALUES or ADD_VALUES, where ADD_VALUES adds values to any existing entries, and INSERT_VALUES replaces existing entries with new values|
If you create the matrix yourself (that is not with a call to DMCreateMatrix()) then you MUST call MatSetLocalToGlobalMapping() before using this routine
Calls to MatSetValuesLocal() with the INSERT_VALUES and ADD_VALUES options cannot be mixed without intervening calls to the assembly routines.
These values may be cached, so MatAssemblyBegin() and MatAssemblyEnd() MUST be called after all calls to MatSetValuesLocal() have been completed.
Developer Notes: This is labeled with C so does not automatically generate Fortran stubs and interfaces because it requires multiple Fortran interfaces depending on which arguments are scalar or arrays.