caa a22 4500 477074766 CHVBK 20180405111436.0 cr unu---uuuuu 170330e19961201xx s 000 0 eng 10.1007/BF02900851 doi (NATIONALLICENCE)springer-10.1007/BF02900851 Realistic efficiency evaluations for parallel computations under workstation cluster [Elektronische Daten] [Mo Zeyao, Li Xiaomei] In recent years high performance scientific computing under workstation cluster connected by local area network is becoming a hot point. Owing to both the longer latency and the higher overhead for protocol processing compared with the powerful single workstation capacity, it is becoming severe important to keep balance not only for numerical load but also for communication load, and to overlap communications with computations while parallel computing. Hence, our efficiency evaluation rules must discover these capacities of a given parallel algorithm in order to optimize, the existed algorithm to attain its highest parallel efficiency. The traditional efficiency evaluation rules can not succeed in this work any more. Fortunately, thanks to Culler's detail discuss in LogP model about interconnection networks for MPP systems, we present a system of efficiency evaluation rules for parallel computations under workstation cluster with PVm3.0 parallel software framework in this paper. These rules can satisfy above acquirements successfully. At last, two typical synchronous and asynchronous applications are designed to verify the validity of these rules under 4 SGIs workstations cluster connected by Ethernet. Springer, 1996 parallel efficiency evaluation nationallicence workstation cluster nationallicence PVM nationallicence network nationallicence parallel computations nationallicence Zeyao Mo Dept. of Computer, Changsha Institute of Technology, 410073, ChangSha, China aut Xiaomei Li Dept. of Computer, Changsha Institute of Technology, 410073, ChangSha, China aut Wuhan University Journal of Natural Sciences Wuhan University 1/3-4(1996-12-01), 329-336 1007-1202 1:3-4<329 1996 1 11859 https://doi.org/10.1007/BF02900851 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02900851 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zeyao Mo Dept. of Computer, Changsha Institute of Technology, 410073, ChangSha, China aut NATIONALLICENCE 700 1- Xiaomei Li Dept. of Computer, Changsha Institute of Technology, 410073, ChangSha, China aut NATIONALLICENCE 773 0- Wuhan University Journal of Natural Sciences Wuhan University 1/3-4(1996-12-01), 329-336 1007-1202 1:3-4<329 1996 1 11859 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer