mercury 2.4.0rc1

Summary

This is a preview release of the v2.4.0 release.

New features

• [NA]
  • Add init info version compatibility wrappers
  • Bump NA version to v4.1.0
  • Add support for traffic_class init info (only supported by ofi plugin)
• [HG/NA Perf Test]
  • Add -f/--hostfile option to select hostfile to write to / read from
  • Add -T/--tclass option to select trafic class
  • Autodetect MPI implementation in perf utilities
    • MPI can now be autodetected and dynamically loaded in utilities, even if MERCURY_TESTING_ENABLE_PARALLEL was turned off. If MERCURY_TESTING_ENABLE_PARALLEL is turned on, tests remain manually linked against MPI as they used to be.
• [NA OFI]
  • Attempt to distribute multi-NIC domains based on selected CPU ID
  • Support selection of traffic classes (single class per NA class)

Bug fixes

• [HG Util]
  • Add missing prototype to hg_atomic_fence() definition
• [NA OFI]
  • Remove excessive MR count warning message
• [NA Perf]
  • Ensure perf tests wait on send completion

⚠️ Known Issues

• [NA OFI]
  • [tcp/verbs;ofi_rxm] Using more than 256 peers requires FI_UNIVERSE_SIZE to be set.