Keeping the cache misses as low as possible is always a good approach.
The opal_list_t is widely used, it should be a highly optimized class.
The same functionality can be reached with one one sentinel instead
of 2 currently used.
I don't have anything against the STL version, but so far nothing can
compare with the Knuth algorithm. I replace the current implementation
with a modified version of the Knuth algorithm (the one described in
The Art of Computer Programming). As expected, the latency went down.
This commit was SVN r10776.
There was some old code regarding the convertor which does not have to be there
(the problem was corrected a while ago). In the PML we already know how the progress
function is defined, so call the BML progress instead, which will save one function
call.
The macro MCA_PML_OB1_COMPUTE_SEGMENT_LENGTH is already defined in the pml_ob1.h
so it should not be in the endpoint.h.
Remove a double definition of the mca_pml_ob1_progress function in the pml_ob1.h.
This commit was SVN r10775.
Since Jeff and I are going to a branch for T-bird, we have restored the trunk to its prior state to avoid any possibility of disturbing it.
This commit was SVN r10774.
Please report any abnormal behavior during launch, though, as we would like to understand what (if any) impact is seen. I couldn't see any on small jobs (the modulo functions render this number down pretty low).
This commit was SVN r10763.
- orte-clean.c : check to see if the base session directory is empty
and delete it if it is.
- orte_universe_exists.c : Fix a down stread problem resulting from
George's r10718 commit. Don't use the 'fulldirpath' since
that is no longer guarenteed to be the absolute path
to the session directory. Construct this value outside of that
function from the prefix and frontend vars.
This commit was SVN r10741.
The following SVN revision numbers were found above:
r10718 --> open-mpi/ompi@47eef2e002
so that it does not return an error when no universe is passed to it.
Also put back in the 'Slots In Use' column as it is now working properly
per Ralphs recent ras commits. Still not sure what 'Slots Alloc' is meant
to represent, so left that as #if 0'd out for the moment.
This commit was SVN r10739.
The following SVN revision numbers were found above:
r10718 --> open-mpi/ompi@47eef2e002
Update the help text to report errors when not following that rule.
Also updated the RMAPS help text to reflect the reorganization of some of the round-robin code into the base.
The new functionality has been tested under Mac OS-X and on Odin using an MPI program. Both byslot and bynode mapping have been checked and verified. Operational support for other systems needs to be verified - I respectfully request people's help in doing so.
This commit was SVN r10708.
1. Modifies the RAS framework so it correctly stores and retrieves the actual slots in use, not just those that were allocated. Although the RAS node structure had storage for the number of slots in use, it turned out that the base function for storing and retrieving that information ignored what was in the field and simply set it equal to the number of slots allocated. This has now been fixed.
2. Modified the RMAPS framework so it updates the registry with the actual number of slots used by the mapping. Note that daemons are still NOT counted in this process as daemons are NOT mapped at this time. This will be fixed in 2.0, but will not be addressed in 1.x.
3. Added a new MCA parameter "rmaps_base_no_oversubscribe" that tells the system not to oversubscribe nodes even if the underlying environment permits it. The default is to oversubscribe if needed and the underlying environment permits it. I'm sure someone may argue "why would a user do that?", but it turns out that (looking ahead to dynamic resource reservations) sometimes users won't know how many nodes or slots they've been given in advance - this just allows them to say "hey, I'd rather not run if I didn't get enough".
4. Reorganizes the RMAPS framework to more easily support multiple components. A lot of the logic in the round_robin mapper was very valuable to any component - this has been moved to the base so others can take advantage of it.
5. Added a new test program "hello_nodename" - just does "hello_world" but also prints out the name of the node it is on.
6. Made the orte_ras_node_t object a full ORTE data type so it can more easily be copied, packed, etc. This proved helpful for the RMAPS code reorganization and might be of use elsewhere too.
This commit was SVN r10697.
