Generic Exact Combinatorial Search at HPC Scale
Generic Exact Combinatorial Search at HPC Scale
复制标题
HPC 规模的通用精确组合搜索
DOI:
10.1007/s10766-022-00744-3
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发表时间:
2022
影响因子:
1.5
通讯作者:
MacGregor R
中科院分区:
文献类型:
--
作者:
MacGregor R
Exact combinatorial search is essential to a wide range of important applications, and there are many large problems that need to be solved quickly. Searches are extremely challenging to parallelise due to a combination of factors, e.g. searches are non-deterministic, dynamic pruning changes the workload, and search tasks have very different runtimes. YewPar is a C++/HPX framework that generalises parallel search by providing a range of sophisticated search skeletons.This paper demonstratesgenerichigh performance combinatorial search, i.e. that a variety of exact combinatorial searches can be easily parallelised for HPC using YewPar. We present a new mechanism for profiling key aspects of YewPar parallel combinatorial search, and demonstrate its value. We exhibit, for the first time, generic exact combinatorial searches at HPC scale. We baseline YewPar against state-of-the-art sequential C++ and C++/OpenMP implementations. We demonstrate that deploying YewPar on an HPC system can dramatically reduce the runtime of large problems, e.g. from days to just 100s. The maximum relative speedups we achieve for an enumeration search are near-linear up to 195(6825) compute-nodes(workers), super-linear for an optimisation search on up to 128(4480) (pruning reduces the workload), and sub-linear for decision searches on up to 64(2240) compute-nodes(workers).
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影响因子:
2
作者:
J. Fromentin;F. Hivert
通讯作者:
F. Hivert
DOI:
10.1007/978-3-030-49432-2_3
发表时间:
2019
期刊:
Bioscience, Biotechnology, and Biochemistry
影响因子:
--
作者:
Stefan Kehrer;Wolfgang Blochinger
通讯作者:
Wolfgang Blochinger
DOI:
10.1007/978-3-030-51372-6_19
发表时间:
2020-05-31
期刊:
Graph Transformation
影响因子:
--
作者:
McCreesh C;Prosser P;Trimble J
通讯作者:
Trimble J
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
François Galea;B. L. Cun
通讯作者:
B. L. Cun
影响因子:
1.6
作者:
E. Alba;F. Almeida;M. Blesa;J. Cabeza;C. Cotta;M. Díaz;I. Dorta;J. Gabarró;C. León;J. Luna;Luz Marina Moreno;C. Pablos;Jordi Petit;Angélica Rojas;F. Xhafa
通讯作者:
F. Xhafa