국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Parallel Processing of Space Propulsion System Programs by Automatic Parallelization of SX-3R System
저자	NAKAMURA Kinuyo, TAKAHASHI Masahiro
Keyword	parallel vector computer; Fortran program; automatic parallelization
URL	http://send.nal.go.jp/send/jpn/dlpdf.php3/naltr0001430.pdf?id=NALTR0001430
보고서번호	NAL-TR-1430
발행년도	2001.8
출처	NAL (National Aerospace Laboratory of Japan)
ABSTRACT	An automatic parallelization function is effective for the reduction of parallel program coding problems. In a shared-memory vector-parallel computer, Fortran program DO loops are automatically parallelized, generally, but this does not occur in a distributed-memory vector-parallel computer. This report describes the comparison and the investigation of the parallel processing time of two programs on space propulsion system by an automatic parallelization function of the SX-3R system. As a result, the following is quantitatively obtained. 갋The performance efficiency of a program parallelized relatively highly and efficiently is large. 갋The memory conflict time is the longest in the difference between an estimated time and a measured time. And a ratio of the memory conflict time per the difference time of a highly parallelized program is higher than for a low one.