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Merged
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Nov 7, 2024
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v5.0.x: NEWS update, version change, prep for v5.0.6rc1 #12914

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ac83f7b
v5.0.x: NEWS update, prep for v5.0.6rc1
janjust Nov 7, 2024
10d73bc
v5.0.x: update VERSION
janjust Nov 7, 2024
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20 changes: 10 additions & 10 deletions VERSION
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Original file line number Diff line number Diff line change
Expand Up @@ -41,7 +41,7 @@ flex_min_version=2.5.4
# requirement is that it must be entirely printable ASCII characters
# and have no white space.

greek=a1
greek=rc1

# If repo_rev is empty, then the repository version number will be
# obtained during "make dist" via the "git describe --tags --always"
Expand Down Expand Up @@ -94,14 +94,14 @@ date="Unreleased developer copy"
# Version numbers are described in the Libtool current:revision:age
# format.

libmpi_so_version=80:5:40
libmpi_mpifh_so_version=80:0:40
libmpi_usempi_tkr_so_version=80:0:40
libmpi_usempi_ignore_tkr_so_version=80:0:40
libmpi_usempif08_so_version=80:2:40
libopen_pal_so_version=80:4:0
libmpi_java_so_version=80:0:40
liboshmem_so_version=80:3:40
libmpi_so_version=80:6:40
libmpi_mpifh_so_version=80:1:40
libmpi_usempi_tkr_so_version=80:1:40
libmpi_usempi_ignore_tkr_so_version=80:1:40
libmpi_usempif08_so_version=80:3:40
libopen_pal_so_version=80:5:0
libmpi_java_so_version=80:1:40
liboshmem_so_version=80:4:40
libompitrace_so_version=80:0:40

# "Common" components install standalone libraries that are run-time
Expand All @@ -115,7 +115,7 @@ libmca_ompi_common_monitoring_so_version=80:0:0

# OPAL layer
libmca_opal_common_cuda_so_version=80:0:0
libmca_opal_common_ofi_so_version=80:3:0
libmca_opal_common_ofi_so_version=80:4:0
libmca_opal_common_sm_so_version=80:1:0
libmca_opal_common_ucx_so_version=80:1:0
libmca_opal_common_ugni_so_version=80:0:0
30 changes: 30 additions & 0 deletions docs/release-notes/changelog/v5.0.x.rst
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Expand Up @@ -4,6 +4,36 @@ Open MPI v5.0.x series
This file contains all the NEWS updates for the Open MPI v5.0.x
series, in reverse chronological order.

Open MPI Version v5.0.6.rc1
------------------------------
:Date: 7 November 2024

- Internal PMIx and PRRTe version:

- PMIx (v5.0.4). Repo: ``https://github.com/openpmix/openpmix``. Commit hash: ``c6b895e261384016e154865dd236faaaa471d173``.
- PRRTE (v3.0.7). repo: ``https://github.com/openpmix/prrte``. Commit hash: ``1b6e6d7e3cb8c0837eba1730cb62b62186ab042c``.

- Session Management Enhancements:
- Finalization Control: Ensures proper finalization of classes when references to the OPAL utility layer reach zero. A new smoke test has been added to validate this behavior.
- Test and CI Additions: A smoke test was introduced for session management, also integrated into macOS GitHub CI to ensure stability across platforms.
- Recognize requests from the same instance rather than same communicator, fixes Waitall/Waitany/Testall/Testany.
- Multiple Init/Finalize Handling: Improvements to handling session multiple initializations and finalizations, addressing issues with parameter management and session destruction.

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Looks fundamentally good, wondering whether we should add in the Session Management Enhancements also a line about the fix to Waitall/Waitany/Testall/Testany regarding the recognizing requests from the same instance. (see PR #12711)

- CUDA and NVIDIA HPC Compiler Compatibility:
- Stream-ordered Allocations: Adjustments for handling CUDA stream-ordered allocations and assigning primary device context in `opal/cuda` (Akshay Venkatesh).
- nvfortran Compatibility: Configure script updated to handle NVIDIA's `nvfortran` compiler, enabling proper compilation with `-fPIC` flags for shared libraries (Gilles Gouaillardet).
- CUDA Memory Address Management: Improvements for handling virtual memory manager (VMM) pointers in CUDA applications to prevent runtime issues.

- MPI Communication and Resource Management:
- Info Duplication: Enhanced `MPI_Info_dup` function to ensure consistent key management across duplicated info objects, supporting better memory and resource handling.
- OFI/Initialization Improvements: Refactored code for OFI common components to support session-based initialization models per MPI 4 standards.
- Resource Leak Fixes: Addressed memory leaks and reference count issues in several components to improve memory management and stability in high-demand environments.

- Detailed Locking Protocol: Modified default file-locking protocols in UFS component to ensure data consistency, especially when using data-sieving operations, which require broader locking.

- MPI_T Interface Enhancements: Modified MCA parameter settings to allow runtime tuning of collectives through the MPI_T interface, adding flexibility for dynamic rules in collective operations.
- Corrected various documentation typos and clarified parameter settings in several API references, improving readability and usability for end users.

Open MPI version v5.0.5
--------------------------
:Date: 23 July 2024
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