This page provides the current Release Notes for Intel® MPI Library. The notes are categorized by year, from newest to oldest, with individual releases listed within each year.
Click a version to expand it into a summary of new features and changes in that version since the last release, and access the download buttons for the detailed release notes, which include important information, such as pre-requisites, software compatibility, installation instructions, and known issues.
You can copy a link to a specific version's section by clicking the chain icon next to its name.
All files are in PDF format - Adobe Reader* (or compatible) required.
To get product updates, log in to the Intel® Software Development Products Registration Center.
For questions or technical support, visit Intel® Software Developer Support.
2018
- Update 2
Linux* Release NotesWindows* Release Notes
- Improved
shm
performance with collective operations (I_MPI_SCHED_YIELD
,_MPI_SCHED_YIELD_MT_OPTIMIZATION
). - Intel® MPI Library is now available to install in YUM and APT repositories.
- Improved
- Update 1
Linux* Release NotesWindows* Release Notes
- Startup performance improvements.
- Initial Release
Linux* Release NotesWindows* Release Notes
- Hydra startup improvements.
- Improved support for Intel® Omni-Path Architecture.
- Support removal for the Intel® Xeon Phi™ coprocessor (code named Knights Corner).
- New deprecations.
2017
- Update 4
Linux* Release NotesWindows* Release Notes
- Performance tuning for processors based on Intel® microarchitecture codenamed Skylake and for Intel® Omni-Path Architecture.
- Deprecated support for the IPM statistics format.
- Update 3
Linux* Release NotesWindows* Release Notes
- Hydra startup improvements.
- Default fabrics list change.
- Update 2
Linux* Release NotesWindows* Release Notes
- New environment variables:
I_MPI_HARD_FINALIZE
andI_MPI_MEMORY_SWAP_LOCK
.
- New environment variables:
- Update 1
Linux* Release NotesWindows* Release Notes
- PMI-2 support for SLURM*, improved SLURM support by default.
- Improved mini-help and diagnostic messages, man1 pages for
mpiexec.hydra
,hydra_persist
, andhydra_nameserver
. - New deprecations.
- Initial Release
Linux* Release NotesWindows* Release Notes
- Support for the MPI-3.1 standard.
- New topology-aware collective communication algorithms.
- Effective MCDRAM (NUMA memory) support.
- Controls for asynchronous progress thread pinning.
- Performance tuning.
- New deprecations.
5.1
- Update 3 Build 223
- Fix for issue with MPI_Abort call on threaded applications (Linux* only)
- Update 3
Linux* Release NotesWindows* Release Notes
- Fixed shared memory problem on Intel® Xeon Phi™ processor (codename: Knights Landing)
- Added new algorithms and selection mechanism for nonblocking collectives
- Added new psm2 option for Intel® Omni-Path fabric
- Added
I_MPI_BCAST_ADJUST_SEGMENT
variable to controlMPI_Bcast
- Fixed long count support for some collective messages
- Reworked the binding kit to add support for Intel® Many Integrated Core Architecture and support for ILP64 on third party compilers
- The following features are deprecated in this version of the Intel MPI Library. For complete list of all deprecated and removed features, visit our deprecation page.
- SSHM
- MPD (Linux*)/SMPD (Windows*)
- Epoll
- JMI
- PVFS2
- Update 2
Linux* Release NotesWindows* Release Notes
- Intel® MPI Library now supports YARN* cluster manager (Linux* only)
- DAPL library UCM settings are automatically adjusted for MPI jobs of more than 1024 ranks, resulting in more stable job start-up (Linux* only)
- ILP64 support enhancements, support for MPI modules in Fortran 90
- Added the direct receive functionality for the TMI fabric (Linux* only)
- Single copy intra-node communication using Linux* supported cross memory attach (CMA) is now default (Linux* only)
- Update 1
Linux* Release NotesWindows* Release Notes
- Changes to the named-user licensing shceme. See more details in the Installation Instructions section of Intel® MPI Library Installation Guide.
- Various bug fixes for general stability and performance.
- Initial Release
Linux* Release NotesWindows* Release Notes
- Added support for OpenFabrics Interface* (OFI*) v1.0 API
- Added support for Fortran* 2008
- Updated the default value for I_MPI_FABRICS_LIST
- Added brand new Troubleshooting chapter to the Intel® MPI Library User's Guide
- Added new application-specific features in the Automatic Tuner and Hydra process manager
- Added support for the MPI_Pcontrol feature for improved internal statistics
- Increased the possible space for MPI_TAG
- Changed the default product installation directories
- Various bug fixes for general stability and performance