What's happened if we roll around with the counter ? george.
On Oct 22, 2008, at 2:49 PM, Ralph Castain wrote:
There recently was activity on the mailing lists where someone was attempting to call comm_spawn 100,000 times. Setting aside the threading issues that were the focus of that exchange, the fact is that OMPI currently cannot handle that many comm_spawns.The ORTE jobid is composed of two elements: 1. the top 16-bits is an "identifier" for that mpirun2. the lower 16-bits is a running counter identifying the specific job/launch for those procs.Thus, we are limited to 64k comm_spawns.Expanding this would require either revamping the entire way we handle jobs (e.g., removing the mpirun identifier - major effort), or expanding the orte_jobid_t from its current 32-bits to 64-bits.Is this a problem we want to address? Ralph _______________________________________________ devel mailing list de...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/devel
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