Test whether a matrix is another one’s transpose, or its own, in which case it tests symmetry.
Collective on A
A - the matrix to test
B - the matrix to test against, this can equal the first parameter
flg - the result
Only available for
The sequential algorithm has a running time of the order of the number of nonzeros; the parallel test involves parallel copies of the block-offdiagonal parts of the matrix.
MatIsTranspose_MPIAIJ in src/mat/impls/aij/mpi/mpiaij.c
MatIsTranspose_SeqAIJ in src/mat/impls/aij/seq/aij.c
MatIsTranspose_SeqBAIJ in src/mat/impls/baij/seq/baij.c
MatIsTranspose_MPISELL in src/mat/impls/sell/mpi/mpisell.c