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of the topology is higher than the communicator size It is possible to have a topology degree higher than the size of the communicator. For example, a periodic cartesian communicator on MPI_COMM_SELF. This will leave the neighborhood collectives with a request buffer that is too small. This commit adds a call that will dynamically increase the size of the request buffer if it is too small. A better fix would be to create the topology *before* calling the coll_select routine on a communicator. This will take some discussion and the solution will not likely be ready anytime soon. Thanks to Lisandro Dalcin for reporting this. Original thread: http://www.open-mpi.org/community/lists/devel/2014/08/15713.php cmr=v1.8.3:reviewer=jsquyres This commit was SVN r32796. |
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| .. | ||
| base | ||
| basic | ||
| cuda | ||
| demo | ||
| fca | ||
| hcoll | ||
| hierarch | ||
| inter | ||
| libnbc | ||
| ml | ||
| portals4 | ||
| self | ||
| sm | ||
| tuned | ||
| coll.h | ||
| Makefile.am | ||