吉林大学学报(理学版)
吉林大學學報(理學版)
길림대학학보(이학판)
JOURNAL OF JILIN UNIVERSITY(SCIENCE EDITION)
2014年
3期
509-514
,共6页
白洪涛%李昂%欧阳丹彤%邢书豪%刘雪飞
白洪濤%李昂%歐暘丹彤%邢書豪%劉雪飛
백홍도%리앙%구양단동%형서호%류설비
2.5 维正演%频率分解%OpenMP%粗粒度并行
2.5 維正縯%頻率分解%OpenMP%粗粒度併行
2.5 유정연%빈솔분해%OpenMP%조립도병행
2.5-D forward%frequency decomposition%OpenMP%coarse-grained parallel
基于CPU多核处理器实现了粗粒度2.5维电磁场并行正演算法,使用 OpenMP 对串行算法的频率域进行粗粒度分解,主线程进行任务分配,从线程在 CPU 多核上并行计算各频率域电磁场值,并分析了 OpenMP并行效率与模型及核心数目的关系.多组不同模型测试结果表明,本文并行方法与串行方法得到的数值结果相同,并获得了接近 CPU 逻辑核心数目的性能提升.
基于CPU多覈處理器實現瞭粗粒度2.5維電磁場併行正縯算法,使用 OpenMP 對串行算法的頻率域進行粗粒度分解,主線程進行任務分配,從線程在 CPU 多覈上併行計算各頻率域電磁場值,併分析瞭 OpenMP併行效率與模型及覈心數目的關繫.多組不同模型測試結果錶明,本文併行方法與串行方法得到的數值結果相同,併穫得瞭接近 CPU 邏輯覈心數目的性能提升.
기우CPU다핵처리기실현료조립도2.5유전자장병행정연산법,사용 OpenMP 대천행산법적빈솔역진행조립도분해,주선정진행임무분배,종선정재 CPU 다핵상병행계산각빈솔역전자장치,병분석료 OpenMP병행효솔여모형급핵심수목적관계.다조불동모형측시결과표명,본문병행방법여천행방법득도적수치결과상동,병획득료접근 CPU 라집핵심수목적성능제승.
A 2.5-dimension controlled source audio-frequency magnetotelluric coarse-grained forward parallel computing algorithm based on multi-core was implemented.This algorithm decomposes the different frequencies to each thread of the CPU core,while the master thread executed the allocation of parallel tasks and slave threads computed the electromagnetic field values of each frequency in parallel.The relationship between the number of cores and parallel efficiency was analyzed.The experiments demonstrate that our parallel algorithm can gain a near-linear speedup of logical cores of CPU,and at the same time,acquire the same data accuracy.