VecSetValuesBlockedLocal#
Inserts or adds values into certain locations of a vector, using a local ordering of the nodes.
Synopsis#
#include "petscvec.h"
PetscErrorCode VecSetValuesBlockedLocal(Vec x, PetscInt ni, const PetscInt ix[], const PetscScalar y[], InsertMode iora)
Not Collective
Input Parameters#
x - vector to insert in
ni - number of blocks to add
ix - indices where to add in block count, not element count
y - array of values
iora - either
INSERT_VALUESreplaces existing entries with new values,ADD_VALUESadds values to any existing entries
Notes#
VecSetValuesBlockedLocal() sets x[bsix[i]+j] = y[bsi+j],
for j=0,..bs-1, for i=0,…,ni-1, where bs has been set with VecSetBlockSize().
Calls to VecSetValuesBlockedLocal() with the INSERT_VALUES and ADD_VALUES
options cannot be mixed without intervening calls to the assembly
routines.
These values may be cached, so VecAssemblyBegin() and VecAssemblyEnd()
MUST be called after all calls to VecSetValuesBlockedLocal() have been completed.
VecSetValuesBlockedLocal() uses 0-based indices in Fortran as well as in C.
See Also#
Vectors and Parallel Data, Vec, VecAssemblyBegin(), VecAssemblyEnd(), VecSetValues(), VecSetValuesBlocked(),
VecSetLocalToGlobalMapping()
Level#
intermediate
Location#
Examples#
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages