Intel MPI Library and MPSS compatibility

The following table lists all supported versions of the Intel® MPI Library and the Intel® Manycore Platform Software Stack (MPSS). Use this as a reference on the cross-compatibility between the library, MPSS, and all supported fabrics.

Intel® MPSS is the open source Operating System for the Intel® Xeon Phi™ Coprocessor.  Intel® MPI Library 4.1 is the first version to offer formal support for executing in an environment featuring the Intel® Xeon Phi™ Coprocessor cards.

The table provides details on which communication modes and interconnect fabrics are supported.  Here's a full list of all available options.

Communication modes:

  • Offload: MPI job will exclusively use Intel® Xeon hosts only - usage of the coprocessor cards will be via offloaded pragmas/directives
  • Native: MPI job will exclusively use Intel® Xeon Phi™ coprocessor cards only - no ranks will be run on host machine
  • Symmetric: MPI job will use a mix of Intel® Xeon hosts and Intel® Xeon Phi™ coprocessor cards - ranks will run in a heterogeneous environment

Interconnect fabrics:

  • shm: Shared memory
  • tcp: TCP/IP-capable network fabrics, such as Ethernet and InfiniBand* (through IPoIB*)
  • dapl: DAPL-capable network fabrics, such as InfiniBand*, iWarp*, and XPMEM* (through DAPL*)
  • ofa: OFA-capable network fabrics including InfiniBand* (through OFED* verbs)
  • tmi: TMI-capable network fabrics including Intel® True Scale Fabric, Myrinet* (through Tag Matching Interface)
Compatibility Matrix
Intel® MPI Library VersionIntel® MPSS Gold U3Intel® MPSS 3.1Intel® MPSS 3.2Intel® MPSS 3.3
4.1 Update 1
Introduces the dapl auto-selection mechanism
Modes: All
Fabrics: shm, tcp, dapl
(tmi supports offload and native modes only)
   
4.1 Update 2Modes: All
Fabrics: shm, tcp, dapl
(tmi supports offload and native modes only)
   
4.1 Update 3Modes: All
Fabrics: shm, tcp, dapl
(tmi supports offload and native modes only)
Modes: All
Fabrics: shm, tcp, dapl
(tmi supports offload and native modes only)
Modes: All
Fabrics: shm, tcp, dapl
(tmi supports offload and native modes only)
 
5.0
Auto provider enhancements
TMI fabric supports full symmetric mode
  Modes: All
Fabrics: shm, tcp, dapl
(tmi supports offload and native modes only)
Modes: All
Fabrics: All

NOTE: The DAPL auto-provider selection mechanism and improved NUMA support require dapl-2.0.37 or higher

NOTE: Minimum requirement for Ivy Bridge/Ivy Town systems is RHEL 6.4 or higher

Any listed versions of the Intel® MPI Library may work with newer or older versions of Intel® MPSS but compatibility is not guaranteed. We recommend you upgrade to the latest software stack always.

If you have concerns or see any issues, please visit our Get Help page for support options.

For more complete information about compiler optimizations, see our Optimization Notice.