MatCopyHashToXAIJ

copy hash table entries into an XAIJ matrix type

Synopsis

#include "petscmat.h" 
PetscErrorCode MatCopyHashToXAIJ(Mat A, Mat B)

Logically Collective

Input Parameter

• A - A matrix in unassembled, hash table form

Output Parameter

• B - The XAIJ matrix. This can either be A or some matrix of equivalent size, e.g. obtained from A via MatDuplicate()

Example

     PetscCall(MatDuplicate(A, MAT_DO_NOT_COPY_VALUES, &B));
     PetscCall(MatCopyHashToXAIJ(A, B));

Notes

If B is A, then the hash table data structure will be destroyed. B is assembled

See Also

Matrices, Mat, MAT_USE_HASH_TABLE

Level

advanced

Location

src/mat/interface/matrix.c

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