MatSetLocalToGlobalMapping#

Sets a local-to-global numbering for use by the routine MatSetValuesLocal() to allow users to insert matrix entries using a local (per-processor) numbering.

Synopsis#

#include "petscmat.h" 
PetscErrorCode MatSetLocalToGlobalMapping(Mat x, ISLocalToGlobalMapping rmapping, ISLocalToGlobalMapping cmapping)

Not Collective

Input Parameters#

x - the matrix
rmapping - row mapping created with ISLocalToGlobalMappingCreate() or ISLocalToGlobalMappingCreateIS()
cmapping - column mapping

Note#

If the matrix is obtained with DMCreateMatrix() then this may already have been called on the matrix

See Also#

Matrices, Mat, DM, DMCreateMatrix(), MatGetLocalToGlobalMapping(), MatAssemblyBegin(), MatAssemblyEnd(), MatSetValues(), MatSetValuesLocal(), MatGetValuesLocal()

Level#

intermediate

Location#

src/mat/interface/matrix.c

Examples#

src/snes/tutorials/ex48.c
src/tao/bound/tutorials/plate2.c
src/tao/bound/tutorials/plate2f.F90

Implementations#

MatSetLocalToGlobalMapping_IS in src/mat/impls/is/matis.c

Index of all Mat routines
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Index of all manual pages