Michael Povolotskyi <mpovolot at purdue.edu> writes: > Thank you, one more detail about MatDenseGetArray > is this statement correct: > if a dense matrix is serial, the data is stored in memory in a > column-wise order,
Yes. > but if a dense matrix is distributed the data is stored in a row-wise > order? No, it's still column-major storage, but each process only owns a range of rows. So the distributed memory partition is by row. If you have large dense matrices, then chances are that you should switch from MATDENSE to MATELEMENTAL anyway.
