| 6f33a894 | 14-Aug-2015 |
Barry Smith <bsmith@mcs.anl.gov> |
MatShift_MPI/SeqXAIJ() could hang if some processes had no entries on a process while others had entries
because some processes would attempt a parallel preallocation and the others would not.
Fixed
MatShift_MPI/SeqXAIJ() could hang if some processes had no entries on a process while others had entries
because some processes would attempt a parallel preallocation and the others would not.
Fixed by first checking if no preallocation was done, and if not doing. Otherwise preallocation is only done
if approprate by each process on the diagonal block portion of the matrix, thus not requiring all processes
that share the matrix to call the parallel preallocation routine
Reported-by: Patrick Lacasse <patrick.m.lacasse@gmail.com>
show more ...
|