VecSetValueLocal#

Set a single entry into a vector using the local numbering, see VecSetValuesLocal()

Synopsis#

#include <petscvec.h>
PetscErrorCode VecSetValueLocal(Vec v,PetscInt row,PetscScalar value, InsertMode mode);

Not Collective

Input Parameters#

  • v - the vector

  • row - the row location of the entry

  • value - the value to insert

  • mode - either INSERT_VALUES or ADD_VALUES

Notes#

For efficiency one should use VecSetValuesLocal() and set several or many values simultaneously if possible.

These values may be cached, so VecAssemblyBegin() and VecAssemblyEnd() MUST be called after all calls to VecSetValueLocal() have been completed.

VecSetValues() uses 0-based indices in Fortran as well as in C.

See Also#

Vectors and Parallel Data, VecSetValuesLocal(), VecSetValues(), VecAssemblyBegin(), VecAssemblyEnd(), VecSetValuesBlockedLocal(), VecSetValue()

Level#

beginner

Location#

include/petscvec.h

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Index of all Vec routines
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Index of all manual pages