15.1. PMIx v5.x series
This file contains all the NEWS updates for the PMIx v5.x series, in reverse chronological order.
15.1.1. 5.0.1 – 9 Sep 2023
Warning
CVE-2023-41915
A security issue was reported by François Diakhate (CEA) which is addressed in the PMIx v4.2.6 and v5.0.1 releases. (Older PMIx versions may be vulnerable, but are no longer supported.)
A filesystem race condition could permit a malicious user to obtain ownership of an arbitrary file on the filesystem when parts of the PMIx library are called by a process running as uid 0. This may happen under the default configuration of certain workload managers, including Slurm.
- Detailed changes include:
- PR #3149 Multiple commits
Do not follow links when doing chown
Cleanup a little debug in new pctrl tool
- PR #3145
Retrieve pset names upon PMIx_Get request
Add a new “pctrl” tool for requesting job control ops
- PR #3144
Properly support the “log” example
show_help: strip leading/trailing blank lines
docs: fix some leftover “Open MPI” references
docs: fix HTML word wapping in table cells
Improve error handling in setup_topology
Define a new server type and connection flags
Minor cleanups for disable-dlopen
Fix Python bindings
- PR #3131 Multiple commits
Switch to using event lib for connections
Roll to v5.0.1
15.1.2. 5.0.0 – 6 Aug 2023
Important
This is the first release in the v5 family and includes some significant changes, both internal and user-facing. A partial list includes:
initial attribute and API definitions in support of scheduler integration to both applications and resource managers/runtime environments.
a new shared memory implementation that removes the need for special “workaround” logic due to limitations in the prior method
support for “qualified” values whereby an application can post multiple values to the same key, each with one or more qualifiers - and then retrieve the desired one by specifying the appropriate qualifier.
availability of both function and macro equivalents for all support operations (e.g., PMIX_ARGV_APPEND and PMIx_Argv_append). Note that the macro versions have been deprecated by the PMIx Standard, but remain highly recommended for use by those compiling against the library (as opposed to dlopen’ing it)
A full list of individual changes will not be provided here, but will commence with the v5.0.1 release.