1. 27 Jan, 2016 1 commit
  2. 26 Jan, 2016 1 commit
    • Peter W. Draper's avatar
      MPI and affinity control are not compatible · 0fda419f
      Peter W. Draper authored
      MPI libraries offer affinity control so as a first guess we shouldn't attempt any control, this is really bad when running more than one rank on the same machine (threads pinned to same cores).
      0fda419f
  3. 21 Jan, 2016 1 commit
    • Angus Lepper's avatar
      NUMA-aware affinity for workers · 61b0165e
      Angus Lepper authored
      * This is not vectorisation-specific.
      * There may be better trade-offs between HT and NUMA.
      * Maybe print a warning when we require multiple NUMA nodes.
      * Must also detect when Hyper-Threading is not present.
      * Probably better as a configure flag, rather than conditional only upon
        the availability of libnuma.
      * ~15-40% performance improvement on COSMA.
      61b0165e
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