Intel® MPI library implementation of a new MPI3.0 standard - new features and performance benchmarks

  • Overview

Introduction into implementation of a new MPI-3 standard by the latest Intel® MPI library 5.0. MPI 3.0 standard introduced many new features such as new one-sided (Remote Memory Access (RMA)) communication semantics, non-blocking and neighborhood collectives, improvements in Fortran bindings and fault tolerance. New MPI 3.0 standard targets to improve performance, reliability and ease of use of HPC cluster applications. In this webinar we will cover MPI 3.0 features implemented in Intel MPI 5.0 library (beta) illustrated by small examples codes. Complementing release of Intel MPI 5.0, we also release a new version of Intel micro-benchmarks library IMB 4.0 containing the benchmarks for non-blocking collectives and new RMA interface. To observe performance benefits with these benchmarks, the asynchronous progress support in multi-threaded version of Intel MPI 5.0 library was implemented . The preliminary performance results based on IMB 4.0 show 2x performance advantage of non-blocking collectives for medium and large message sizes. We will also demonstrate performance advantages of truly passive RMA put function invocation in IMB 4.0 test-suite. Finally, a small stencil kernel will be used to demo a new shared memory MPI API functions that can compete with hybrid MPI and OpenMP* applications.

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Benchmark results were obtained prior to the implementation of recent software patches and firmware updates intended to address exploits referred to as "Spectre" and "Meltdown". Implementation of these updates may make these results inapplicable to your device or system.

Software and workloads used in performance tests may have been optimized for performance only on Intel microprocessors. Performance tests, such as SYSmark and MobileMark, are measured using specific computer systems, components, software, operations and functions. Any change to any of those factors may cause the results to vary. You should consult other information and performance tests to assist you in fully evaluating your contemplated purchases, including the performance of that product when combined with other products. For more information, see Performance Benchmark Test Disclosure.