کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
502930 863730 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Task mapping on supercomputers with cellular networks
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Task mapping on supercomputers with cellular networks
چکیده انگلیسی

Several models are developed to map reasonably arbitrary application problems to computing platforms for achieving high performance by minimizing communication and by balancing computation. In our models, we assume that the underlying applications be appropriately decomposed to subtasks with known computational loads and the inter-subtask communicational demands, and assume that the computing system's specifications such as individual processor speed and inter-processor communication cost be given or easily measurable. Therefore, the model abstracting the application as a demand matrix and the computer as a network supply matrix can be designed with the objective function as minimum time to complete the application on the given computer. An application, 2D wave equation, was introduced to test our models on the BG/L supercomputer. The mappings generated by our models, reduced communication by 51% for 3D-mesh and 31% for 3D-torus over the default MPI rank order mapping.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Physics Communications - Volume 179, Issue 7, 1 October 2008, Pages 479–485
نویسندگان
, ,