A Decoupled Execution Paradigm for Data-Intensive High-End Computing

Yong Chen, Chao Chen, Xian-He Sun, William Gropp, Rajeev Thakur

Research output: Contribution to conferencePaperpeer-review


High-end computing (HEC) applications in critical areas of science and technology tend to be more and more data intensive. I/O has become a vital performance bottleneck of modern HEC practice. Conventional HEC execution paradigms, however, are computing-centric for computation intensive applications. They are designed to utilize memory and CPU performance and have inherent limitations in addressing the critical I/O bottleneck issues of HEC. In this study, we propose a decoupled execution paradigm (DEP) to address the challenging I/O bottleneck issues. DEP is the first paradigm enabling users to identify and handle data-intensive operations separately. It is significantly better than the existing execution paradigms for data-intensive applications. The initial experimental tests have confirmed its promising potential. Its data-centric architecture could have a profound impact in future HEC systems, programming models, and algorithms design and development.
Original languageEnglish
StatePublished - Sep 2012


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