v4.0.3

Changes in 4.0.3

• Fix message queue dumping interface support

• Fix multinic usage in ch4:ofi

• Fix bug in MPI_WIN_CREATE in ch4:ucx when UCX >= 1.13.0

• Fix MPIR_pmi_barrier when PMI2 is used

• Fix ROMIO lazy mutex initialization

• Fix build with HIP support

• Fix potential dynamic process message mixups in ch3

• Add missing const to MPI_Pready_list array_of_partitions argument

• Add support for C++ datatypes even when the C++ binding is disabled

• Add support for Intel OneAPI compilers

v4.0.2

Changes in 4.0.2

• Fix CUDA configuration logic in yaksa

• Fix support for dynamic process functionality with PMI2 clients

• Fix non-zero appnum bug in PMI2 server in Hydra

• Fix MPI_Op support for types created with MPI_Type_create_f90_xxx

• Fix building ch4 with Intel compilers on macOS

• Fix Level Zero properties initialization in MPL. Thanks to Brice
  Videau for the report and patch.

• Use standard names for CPU affinity functions with POSIX
  threads. Fixes building against Musl libc. Thanks to Mosè Giordano for
  the report and patch.

• Add elemental to eq/neq operators in Fortran 2008 binding

• Workaround for inter-process mutex bug on FreeBSD

v4.0.1

Changes in 4.0.1

• Multiple fixes for NVIDIA/PGI HPC Compilers support

• Fix ch4:ofi:gni provider capability set

• Fix MPI_SESSION_INIT "thread_level" info hint

• Fix build on macOS with --disable-shared

• Fix QMPI function definitions

• Fix support for "host" info hint in MPI_COMM_SPAWN[_MULTIPLE]

• Fix manpage generation

• Add missing MPI_F_sync_reg function

• Add missing const to MPI_Psend_init buffer argument

• Make Python 3 optional in configure script

• Remove -Wl,flat_namespace from compile wrappers by default (macOS only)

• Update UCX module to v1.12.0

• Update yaksa module to support latest Ampere compute capability

v4.0

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.

v4.0rc3

tagging 'v4.0rc3'

v4.0rc2

tagging 'v4.0rc2'

v3.4.3

tagging 'v3.4.3'

v4.0a2

tagging 'v4.0a2'

v3.4.2

tagging 'v3.4.2'

MPICH 4.0a1

v4.0a1

tagging 'v4.0a1'