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LCI v1.7.5
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@JiakunYan JiakunYan released this 15 Oct 18:28
· 98 commits to master since this release
v1.7.5
e2cb46d

Major Changes

  • Runtime: use buffer directly for inline sendm/putm
    • sendm and putm consume LCI packets even when the send can be inlined.
      This allows such "short" medium sends to bypass normal packet allocation
      and use the user's buffer directly.
  • Add LCIX collective communication operations.
  • Add LCI_ENABLE_MULTITHREAD_PROGRESS option: Make LCI_progress thread-safe.
  • Improve Matching Table:
    • Improve the original matching table algorithm.
    • Providing two more matching table backends.
    • Refactor the code to enable user select the matching table at runtime.
      • queue
      • hash
      • hashqueue

Breaking Changes

Other Changes

  • Use check_c_compiler_flag to set LCI_USE_AVX and LCI_OPTIMIZE_FOR_NATIVE.
  • spack: add spack package for new LCI version.
  • Enable debug build for detecting double free of packets.
  • More debugging log.
  • Implement LCI_barrier with LCI_send/recv.
  • Improve ibv device selection procedure: automatically select the device and
    port with the best performance.
  • Modernize LCI: Use C11 stdatomic for all synchronization variables.
  • Add an assertion in LCI_putva in case there are too many lbuffers.
  • Set the default value of LCI_USE_AVX to be OFF.
  • improve(cmake): Only set LCI_USE_DREG_DEFAULT to 1 when using the ibv backe
    nd
  • improve(cmake): improve the LCI_SERVER auto selection: if we find ofi/cxi p
    rovider, use ofi by default
  • improve(pmi): add warning to users when PMIx environment is detected but PM
    Ix support is not enabled.
  • improve(ofi): use try lock wrapping the endpoint when posting sends and puts.

Fixed Issues

  • Fix LCI compilation on AArch64.
  • fix(ibv): fix compilation warning of "non-void function does not return a v
    alue".
  • fix(lci-ucx): fix compilation warning "macro expansion producing 'defined'
    has undefined behavior".
  • fix(lci-ucx): add missing compilation options (especially -DUSE_LOCKS=1) wh
    en using ptmalloc.
  • fix(rcache): fix compilation warning of non-void function no return.
  • fix(ofi): correctly handle the case when fi_recv returns -FI_EAGAIN.
  • fix(pmi): use cray/slurm pmi if found; update the embedded pmi API to new version.

Full Changelog: v1.7.4...v1.7.5

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