کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
503591 863786 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improved parallelization techniques for the density matrix renormalization group
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Improved parallelization techniques for the density matrix renormalization group
چکیده انگلیسی

A distributed-memory parallelization strategy for the density matrix renormalization group is proposed for cases where correlation functions are required. This new strategy has substantial improvements with respect to previous works. A scalability analysis shows an overall serial fraction of 9.4% and an efficiency of around 60% considering up to eight nodes. Sources of possible parallel slowdown are pointed out and solutions to circumvent these issues are brought forward in order to achieve a better performance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Physics Communications - Volume 181, Issue 8, August 2010, Pages 1346–1351
نویسندگان
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