Improve hetero node handling#2430
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rhc54 merged 1 commit intoopenpmix:masterfrom Apr 16, 2026
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Compression has gotten very good now, so just send the topology from every node (amounts to a few kbytes/node). Use the hwloc_topology_diff support to compare topologies to determine if they are different, storing the ones that are unique. Remove the --hetero-nodes cmd line option and replace it with --uniform-nodes for those users that (a) know their system has no variation in cpusets or hardware, and (b) want to avoid sending the topology back from each node. We default to auto-detecting. Signed-off-by: Ralph Castain <rhc@pmix.org>
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Compression has gotten very good now, so just send the topology from every node (amounts to a few kbytes/node). Use the hwloc_topology_diff support to compare topologies to determine if they are different, storing the ones that are unique.
Remove the --hetero-nodes cmd line option and replace it with --uniform-nodes for those users that (a) know their system has no variation in cpusets or hardware, and (b) want to avoid sending the topology back from each node. We default to auto-detecting.