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

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

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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