{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,25]],"date-time":"2023-10-25T16:10:51Z","timestamp":1698250251495},"reference-count":9,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2006,10,24]],"date-time":"2006-10-24T00:00:00Z","timestamp":1161648000000},"content-version":"vor","delay-in-days":4954,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Concurrency: Pract. Exper."],"published-print":{"date-parts":[[1993,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>We report significant speed\u2010up for seismic migration running in parallel on networkconnected IBM RISC\/6000 workstations, A sustained performance of 15 MFLOP is obtained on a single\u2010entry\u2010level model 320, and speed\u2010ups as high as 5 are obtained for six workstations connected by Ethernet or token ring. Our parallel software uses remote procedure calls provided by NCS (Network Computing System). We have run over a dozen workstations in parallel, but speed\u2010ups become limited by network data rate. Fiber\u2010optic communication should allow much greater speed\u2010ups, and we describe our preliminary results with the fiberoptic serial link adapter of the RISC\/6000. We also present a simple theoretical model that agrees well with our measurements and allows speed\u2010up to be predicted from a knowledge of the ratio of computation to communication, which can be determined empirically before the program is parallellzed. We conclude with a brief discussion of alternative software approaches and programming models for network\u2010connected parallel systems. In particular, our program was recently ported to PVM and Linda, and preliminary measurements yield speed\u2010ups very close to those described here.<\/jats:p>","DOI":"10.1002\/cpe.4330050203","type":"journal-article","created":{"date-parts":[[2006,11,17]],"date-time":"2006-11-17T16:26:46Z","timestamp":1163780806000},"page":"105-131","source":"Crossref","is-referenced-by-count":3,"title":["Parallel distributed seismic migration"],"prefix":"10.1002","volume":"5","author":[{"given":"G. S.","family":"Almasi","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D.","family":"Hale","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T.","family":"McLuckie","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.","family":"Bell","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.","family":"Gordon","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2006,10,24]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1190\/1.1442989"},{"key":"e_1_2_1_3_2","unstructured":"G. S.Almasi B.Alpem C. L.Berman J. L.CarterandD.Hale \u2018A case\u2010study in performance programming: Seismic Migration\u2019 Proceedings 2nd Symposium on High Performance Computing Montpelier France October 1991 (also available as IBM Research Report RC 16951 June1991)."},{"key":"e_1_2_1_4_2","unstructured":"MorrisMeyer \u2018The Godzilla approach to distributed computing\u2019 BuzzNUG Buzzings 33(March1990)."},{"key":"e_1_2_1_5_2","unstructured":"RonCytron \u2018Useful parallelism in a multiprocessing environment\u2019 Proceedings of the International Conference on Parallel Processing 450\u2013457(1985)."},{"key":"e_1_2_1_6_2","volume-title":"Imaging the Earth's Interior","author":"Claerbout J. F.","year":"1985"},{"key":"e_1_2_1_7_2","unstructured":"TongChen Private Communication."},{"key":"e_1_2_1_8_2","volume-title":"Highly Parallel Computing","author":"Almasi George S.","year":"1989"},{"key":"e_1_2_1_9_2","doi-asserted-by":"publisher","DOI":"10.1145\/77648.77653"},{"key":"e_1_2_1_10_2","volume-title":"Highly Parallel Computing","author":"Almasi George S.","year":"1993"}],"container-title":["Concurrency: Practice and Experience"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fcpe.4330050203","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/cpe.4330050203","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,24]],"date-time":"2023-10-24T20:18:09Z","timestamp":1698178689000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/cpe.4330050203"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1993,4]]},"references-count":9,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1993,4]]}},"alternative-id":["10.1002\/cpe.4330050203"],"URL":"https:\/\/doi.org\/10.1002\/cpe.4330050203","archive":["Portico"],"relation":{},"ISSN":["1040-3108","1096-9128"],"issn-type":[{"value":"1040-3108","type":"print"},{"value":"1096-9128","type":"electronic"}],"subject":[],"published":{"date-parts":[[1993,4]]}}}