Releases · pmodels/mpich

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.

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