Titlebook: Recent Advances in the Message Passing Interface; 19th European MPI Us Jesper Larsson Träff,Siegfried Benkner,Jack J. Don Conference procee

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MPI and Compiler Technology: A Love-Hate Relationshipsing the processing power of massively parallel supercomputers. Alternative parallel programming paradigms have existed for quite some time, mainly in the form of PGAS languages [4,7], but have yet to deliver the necessary performance, robustness and portability needed to drive developers away from

雄辩

Advanced MPI Including New MPI-3 Featuresrid programming, and parallel I/O. We will also discuss new features in the newest version of MPI, MPI-3, which is expected to be officially released a few days before this tutorial. The tutorial will be heavily example driven; we will introduce concepts by using code examples based on scenarios fou

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Hands-on Practical Hybrid Parallel Application Performance Engineeringt infrastructure, demonstrating how they can be used for performance engineering of effective scientific applications based on standard MPI or OpenMP and now common mixed-mode hybrid parallelizations. Parallel performance evaluation tools from the Virtual Institute – High Productivity Supercomputing

DUST

Melanocytes

A Low Impact Flow Control Implementation for Offload Communication Interfacesns layered over the Portals network programming interface provided a large default unexpected receive buffer space, the user was expected to configure the buffer size to the application demand, and the application was aborted when the buffer space was overrun. The Portals 4 design provides a set of

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Improving MPI Communication Overlap with Collaborative Polling Computing (HPC) have shown that improvements in single-core performance will not be sufficient to face the challenges of an Exascale machine: we expect an enormous growth of the number of cores as well as a multiplication of the data volume exchanged across compute nodes. To scale applications up t

APO

Delegation-Based MPI Communications for a Hybrid Parallel Computer with Many-Core Architectureed Core (MIC) architecture from Intel exist worldwide. Many-core CPUs have a great deal of impact to improve computing performance, however, they are not favorable for heavy communications and I/Os which are essential for MPI operations in general..We have been focusing on the MIC architecture as ma

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ELUDE

Exploiting Atomic Operations for Barrier on Cray XE/XK Systemsy exchanging a short data message that requires demultiplexing, thereby adding undesired latency to the operation. In this work, we reduce the latency of . operations for . systems by leveraging the atomic operations provided by the . interconnect, tailoring algorithms to utilize these capabilities,

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Exact Dependence Analysis for Increased Communication Overlapr, for large applications, this is often not practical and expensive tracing tools and post-mortem analysis are employed to guide the tuning efforts finding hot-spots and performance bottlenecks. In this paper we revive the use of compiler analysis techniques to automatically unveil opportunities fo