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@raffenet raffenet released this 21 Jan 21:10
· 3050 commits to main since this release
v4.0
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Changes in 4.0

  • All MPI-4 APIs have been implemented. Major MPI-4 features include MPI
    sessions, partitioned point-to-point communications, events in the MPI tool
    information interface, large-count functions, persistent collectives,
    MPI_Comm_idup_with_info, MPI_Isendrecv and MPI_Isendrecv_replace,
    MPI_Info_get_string, MPI_Comm_split_type with new split_type --
    MPI_COMM_TYPE_HW_GUIDED and MPI_COMM_TYPE_HW_UNGUIDED.

  • Add QMPI (experimental) support.

  • Add MPIX_Delete_error_{class,code,string}.

  • MPI_Info objects can be accessed before MPI_Init{_thread}.

  • Generate C API interface functions including man page notes and error
    checking using Python scripts.

  • Generate Fortran (mpif.h, mpi_f08) bindings using Python scripts.

  • Generate collective entrance functions and generate per-algorithm tests.

  • Support explicit --without-cuda configure option.

  • Drop support for UCX version < 1.7.0.

  • Configure now optionally require Python 3 (when F08 is enabled).

  • Multi-NIC support in ch4:ofi.

  • Default to ch4:ofi when configure doesn't have a clear choice. Add message
    block at the end of configure to advise user.

  • Multiple VCI is fully implemented including the active message fallback paths.

  • Extend IPC to support non-contig datatypes.

  • Add AMD GPU support using HIP.

  • Add generic RNDV callback mechanism with active messages.

  • Refactor ch4 dynamic process functions.

  • Avoid building MPL and hwloc multiple times.

  • Fix MPIX_Query_cuda_support.

  • Many bug fixes and code clean-ups.

Assets 4