Current State of Java for HPC

Brian Amedro 1 Vladimir Bodnartchouk 2 Denis Caromel 1 Christian Delbe 1 Fabrice Huet 1 Guillermo Taboada 3, *
* Corresponding author
1 OASIS - Active objects, semantics, Internet and security
CRISAM - Inria Sophia Antipolis - Méditerranée , Laboratoire I3S - COMRED - COMmunications, Réseaux, systèmes Embarqués et Distribués
Abstract : About ten years after the Java Grande effort, this paper aims at providing a snapshot of the current status of Java for High Performance Computing. Multi-core chips are becoming mainstream, offering many ways for a Java Virtual Machine (JVM) to take advantage of such systems for critical tasks such as Just-In-Time compilation or Garbage Collection. We first perform some micro benchmarks for various JVMs, showing the overall good performance for basic arithmetic operations. Then we study a Java implementation of the Nas Parallel Benchmarks, using the ProActive middleware for distribution. Comparing this implementation with a Fortran/MPI one, we show that they have similar performance on computation intensive benchmarks, but still have scalability issues when performing intensive communications. Using experiments on clusters and multi-core machines, we show that the performance varies greatly, depending on the Java Virtual Machine used (version and vendor) and the kind of computation performed.
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https://hal.inria.fr/inria-00312039
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Submitted on : Monday, August 25, 2008 - 10:39:07 AM
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Brian Amedro, Vladimir Bodnartchouk, Denis Caromel, Christian Delbe, Fabrice Huet, et al.. Current State of Java for HPC. [Technical Report] RT-0353, INRIA. 2008, pp.26. ⟨inria-00312039⟩

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