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Towards open science: The myExperiment approach

by David De Roure, Carole Goble, Sergejs Aleksejevs, Sean Bechhofer, Jiten Bhagat, Don Cruickshank, Paul Fisher, Duncan Hull, Danius Michaelides, David Newman, Rob Procter, Yuwei Lin, Meik Poschen show all authors
Concurrency Computation Practice and Experience ()
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HPCTOOLKIT is an integrated suite of tools that supports measurement, analysis, attribution, and presentation of application performance for both sequential and parallel programs. HPCTOOLKIT can pinpoint and quantify scalability bottlenecks in fully optimized parallel programs with a measurement overhead of only a few percent. Recently, new capabilities were added to HPCTOOLKIT for collecting call path profiles for fully optimized codes without any compiler support, pinpointing and quantifying bottlenecks in multithreaded programs, exploring performance information and source code using a new user interface, and displaying hierarchical space–time diagrams based on traces of asynchronous call path samples. This paper provides an overview of HPCTOOLKIT and illustrates its utility for performance analysis of parallel applications.

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