کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
425443 685738 2006 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Scaling applications to massively parallel machines using Projections performance analysis tool
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نظریه محاسباتی و ریاضیات
پیش نمایش صفحه اول مقاله
Scaling applications to massively parallel machines using Projections performance analysis tool
چکیده انگلیسی

Some of the most challenging applications to parallelize scalably are the ones that present a relatively small amount of computation per iteration. Multiple interacting performance challenges must be identified and solved to attain high parallel efficiency in such cases. We present case studies involving NAMD, a parallel classic molecular dynamics application for large biomolecular systems, and CPAIMD, Car-Parrinello ab initio molecular dynamics application, and efforts to scale them to large number of processors. Both applications are implemented in Charm++, and the performance analysis was carried out using Projections, the performance visualization/analysis tool associated with Charm++. We showcase a series of optimizations facilitated by Projections. The resultant performance of NAMD led to a Gordon Bell award at SC 2002 with unprecedented speedup on 3000 processors with teraflops level peak performance. We also explore the techniques for applying the performance visualization/analysis tool on future generation extreme-scale parallel machines and discuss the scalability issues with Projections.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Future Generation Computer Systems - Volume 22, Issue 3, February 2006, Pages 347–358
نویسندگان
, , , ,