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Title:
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HPC system software for regular and irregular parallel applications
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Author:
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Morari, Alessandro; Valero Cortés, Mateo
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors; Universitat Politècnica de Catalunya. CAP - Grup de Computació d'Altes Prestacions |
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Abstract:
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The upcoming generation of system software for High Performance Computing is expected to provide a richer set of functionalities without compromising application performance. This Ph.D. thesis addresses the problem of designing scalable system software for both regular and irregular applications. The contributions are two-fold. First, we evaluate the drawbacks of current HPC system software for regular applications. We describe a methodology to precisely measure jitter on a general-purpose OS. Considering a lightweight operating system (IBM CNK), we analyze the overhead of adding support for a missing feature such as dynamic memory management. Second, we focus on irregular applications and build a specialized runtime system to enhance this kind of applications on common HPC flop intensive systems. The proposed runtime system provides a global address space abstraction of a distributed memory machine combined with a transparent fork/join execution model and it also includes lightweight multithreading and network message aggregation. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Informàtica::Arquitectura de computadors::Arquitectures distribuïdes
-Operating systems (Computers)
-High performance computing
-Distributed memory systems
-Multi-threading
-Operating systems (computers)
-Sistemes operatius (Ordinadors)
-Càlcul intensiu (Informàtica) |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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Institute of Electrical and Electronics Engineers (IEEE)
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