fb2e543a57
We ran into a case where the OMPI SVN trunk grew a new acceptable MCA parameter value, but this new value was not accepted on the v1.6 branch (hwloc_base_mem_bind_failure_action -- on the trunk it accepts the value "silent", but on the older v1.6 branch, it doesn't). If you set "hwloc_base_mem_bind_failure_action=silent" in the default MCA params file and then accidentally ran with the v1.6 branch, every OMPI executable (including ompi_info) just failed because hwloc_base_open() would say "hey, 'silent' is not a valid value for hwloc_base_mem_bind_failure_action!". Kaboom. The only problem is that it didn't give you any indication of where this value was being set. Quite maddening, from a user perspective. So we changed the ompi_info handles this case. If any framework open function return OMPI_ERR_BAD_PARAM (either because its base MCA params got a bad value or because one of its component register/open functions return OMPI_ERR_BAD_PARAM), ompi_info will stop, print out a warning that it received and error, and then dump out the parameters that it has received so far in the framework that had a problem. At a minimum, this will show the user the MCA param that had an error (it's usually the last one), and ''where it was set from'' (so that they can go fix it). We updated ompi_info to check for O???_ERR_BAD_PARAM from each from the framework opens. Also updated the doxygen docs in mca.h for this O???_BAD_PARAM behavior. And we noticed that mca.h had MCA_SUCCESS and MCA_ERR_??? codes. Why? I think we used them in exactly one place in the code base (mca_base_components_open.c). So we deleted those and just used the normal OPAL_* codes instead. While we were doing this, we also cleaned up a little memory management during ompi_info/orte-info/opal-info finalization. Valgrind still reports a truckload of memory still in use at ompi_info termination, but they mostly look to be components not freeing memory/resources properly (and outside the scope of this fix). This commit was SVN r27306. The following Trac tickets were found above: Ticket 3275 --> https://svn.open-mpi.org/trac/ompi/ticket/3275 |
||
|---|---|---|
| .. | ||
| allocator | ||
| bcol | ||
| bml | ||
| btl | ||
| coll | ||
| common | ||
| crcp | ||
| dpm | ||
| fbtl | ||
| fcoll | ||
| fs | ||
| io | ||
| mpool | ||
| mtl | ||
| op | ||
| osc | ||
| pml | ||
| pubsub | ||
| rcache | ||
| sbgp | ||
| sharedfp | ||
| topo | ||
| vprotocol | ||