Understanding the use of message passing interface in exascale proxy applications
Understanding the use of message passing interface in exascale proxy applications
复制标题
了解消息传递接口在百亿亿级代理应用程序中的使用
DOI:
10.1002/cpe.5901
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Mohror, Kathryn
中科院分区:
文献类型:
--
作者:
Sultana, Nawrin;Rüfenacht, Martin;Skjellum, Anthony;Bangalore, Purushotham;Laguna, Ignacio;Mohror, Kathryn
The Exascale Computing Project (ECP) focuses on the development of future exascale‐capable applications. Most ECP applications use the message passing interface (MPI) as their parallel programming model with mini‐apps serving as proxies. This paper explores the explicit usage of MPI in such ECP proxy applications. We empirically analyze 14 proxy applications from the ECP Proxy Apps Suite. We use the MPI profiling interface (PMPI) to collect MPI usage patterns in ECP proxy apps. Our analysis shows that a small subset of features from MPI is commonly used in the proxies of exascale‐capable applications, even when they reference third‐party libraries. This study is intended to provide a better understanding of the use of MPI in current exascale applications. The findings can help focus software investments made for exascale systems in the MPI middleware including optimization, fault‐tolerance, tuning, and hardware‐offload.
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