翻訳と辞書 Words near each other ・ HBF Stadium ・ HBFC ・ HBG ・ HBG (time signal) ・ HBG Holdings ・ HBG1 ・ HBG2 ・ HBGary ・ HBH ・ HBHS ・ HBI ・ HBI-3000 ・ HBIC ・ HBIO ・ HBJ ・ HBJ model ・ HBK ・ HBK Investments ・ HBL ・ HBL F.C. ・ HBL Pakistan ・ HBM ・ HBMS ・ HBN ・ HBO ・ HBO (Asia) ・ HBO (disambiguation) ・ HBO (international) ・ HBO Brazil ・ HBO Canada Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク HBJ model ： ウィキペディア英語版 HBJ model In Computer Science Helman-Bader-JaJa model is a concise message passing model of parallel computation defined with the following parameters: *$p$ is number of processors. *$n$ is the problem size. *$m$ is number of machine words in a packet sent over the network. *$\backslash tau$ is the latency, or time at which a processor takes to initiate a communication on a network. *$\backslash sigma$ is the bandwidth, or time per machine word at which a processor can inject or receive $m$ machine words from the network. *$T\_$ is the largest computation time expended on a processor. *$T\_$ is the time spent in communication on the network. This model assumes that for any subset of $q$ processors, a block permutation among the $q$ processors takes $(\backslash tau+\backslash sigma\; m)$ time, where $m$ is the size of the largest block. == Analysis of common parallel algorithms == Complexities of common parallel algorithms contained in the MPI libraries: *Point to point communication: $O(\backslash tau+\backslash sigma\; m)$ *Reduction :$O(log(p)\; (\backslash tau+\backslash sigma\; m))$ *Broadcast: $O(log(p)\; (\backslash tau+\backslash sigma\; m))$ *Parallel prefix: $O(log(p)\; (\backslash tau+\backslash sigma\; m))$ *All to all: $O(p(\backslash tau+\backslash sigma\; m))\; )$ 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「HBJ model」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.