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Author Kandaswamy, Meenakshi ♦ Kandemir, Mahmut T. ♦ Choudhary, Alok N. ♦ Bernholdt, David E.
Source CiteSeerX
Content type Text
Publisher IEEE Computer Society Press
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Data Approach ♦ Tool Box ♦ High Volume Data Storage ♦ Data Retrieval ♦ Scientific Application Developer ♦ Present Extensive Experimental Result ♦ Efficient Interface ♦ Important Part ♦ Experimental Study ♦ Many Scientific Application ♦ Hartree-fock Application ♦ High Performance ♦ File System ♦ System-related Factor ♦ Parallel Machine ♦ Application-related Factor ♦ Processing Demand ♦ Data Processing ♦ Nwchem Parallel Computational Chemistry Package
Description : Parallel machines are an important part of the scientific application developer's tool box and the processing demands placed on these machines are rapidly increasing. Many scientific applications tend to perform high volume data storage, data retrieval and data processing, which demands high performance from the I/O subsystem. In this paper, we conduct an experimental study of the I/O performed by the Hartree-Fock (HF) method, as implemented using a fully distributed data approach in the NWChem parallel computational chemistry package. We use PASSION, a parallel and scalable I/O library to improve the I/O performance of the application and present extensive experimental results. The effects of both application-related factors and system-related factors on the application's I/O performance are studied in detail. We rank the optimizations based on the significance and impact on the performance of HF's I/O phase as: I. efficient interface to the file system, II. prefetching, and III. b...
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article
Publisher Date 1997-01-01
Publisher Institution In Proceedings of SC97: High Performance Networking and Computing