MatTransposeSetPrecursor#

Set the matrix from which the second matrix will receive numerical transpose data with a call to MatTranspose(A,MAT_REUSE_MATRIX,&B) when B was not obtained with MatTranspose(A,MAT_INITIAL_MATRIX,&B)

Synopsis#

#include "petscmat.h" 
PetscErrorCode MatTransposeSetPrecursor(Mat mat, Mat B)

Collective

Input Parameter#

  • mat - the matrix to provide the transpose

Output Parameter#

  • mat - the matrix to contain the transpose; it MUST have the nonzero structure of the transpose of A or the code will crash or generate incorrect results

Note#

Normally the use of MatTranspose(A, MAT_REUSE_MATRIX, &B) requires that B was obtained with a call to MatTranspose(A, MAT_INITIAL_MATRIX, &B). This routine allows bypassing that call.

See Also#

Matrices, Mat, MatTransposeSymbolic(), MatTranspose(), MatMultTranspose(), MatMultTransposeAdd(), MatIsTranspose(), MatReuse, MAT_INITIAL_MATRIX, MAT_REUSE_MATRIX, MAT_INPLACE_MATRIX

Level#

advanced

Location#

src/mat/interface/matrix.c

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