MatPreallocateFinalize
Ends the block of code that will count the number of nonzeros per row in a matrix providing the data that one can use to correctly preallocate the matrix.
Synopsis
PetscErrorCode MatPreallocateFinalize(PetscInt *dnz, PetscInt *onz)
Collective on MPI_Comm
Input Parameters
| dnz | - the array that was be passed to the matrix preallocation routines
|
| ozn | - the other array passed to the matrix preallocation routines
|
Notes
See the <A href="../../docs/manual.pdf#nameddest=Chapter 12 Hints for Performance Tuning">Hints for Performance Improvment</A> chapter in the users manual for more details.
Do not malloc or free dnz and onz that is handled internally by these routines
This is a MACRO not a function because it closes the { started in MatPreallocateInitialize().
See Also
MatPreallocateInitialize(), MatPreallocateSet(), MatPreallocateSymmetricSet(), MatPreallocateSetLocal(),
MatPreallocateSymmetricInitialize(), MatPreallocateSymmetricSetLocal()
Level:intermediate
Location:src/mat/../../include/petscmat.h
Index of all Mat routines
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Index of all manual pages