@techreport{oai:ipsj.ixsq.nii.ac.jp:00033426, author = {浅野, 俊幸 and 堀口, 進 and Toshiyuki, Asano and Susumu, Horiguchi}, issue = {89(2002-MPS-041)}, month = {Sep}, note = {本論文では,並列気候モデル向きのプロセス競合を考慮した動的負荷分散手法を提案する.近年,従来から使用されていた逐次処理型の気候モデルから並列化への移行、特に大規模計算を念頭に置いた並列化への移行が試みられている.並列化によって新たに数値計算手法の並列化効率やマルチユーザ環境でのプロセス競合による実行時間の遅延等が問題視されている.一般的に数値計算手法はスペクトル法が広く用いられている.スペクトル法では格子空間と波数空間それぞれで計算が行われるが、各空間の使用ノード数が異なることによる並列効率の低下が指摘されている.本手法では時計算量が小さいノードへ,他のプロセスと競合状態にある負荷集中状態のノードの計算を移行させることにより効率よく集荷分散を実現した。, We propose a Dynamic load balancing Scheme in consideration of the process rivalry which is effective in mounting of the parallel climate model.Recently, it shifts from sequential operation model which had been used from before to the weather model model, climate of parallel operation model. The problem of the delay of the effective time by the problem of the parallel efficiency of the numerical value calculation technique and the process rivalry in the multi-user environment is pointed out with an arrangement in a row-ization model.Generally spectral transforms is being used for the numerical value calculation technique widely.As for the spectral transforms, a calculation is done in the lattice space and the wave number space. To be a problem here is that parallel efficiency decreases because the number of nodes to use in each space is different.It aims at dispersing a load efficiently by shifting the calculation of a node to compete with each other with other processes to the node which isn't being used for he calculation with this technique.}, title = {並列気候モデルNJR - SAGCMのプロセス競合を考慮した動的負荷分散手法}, year = {2002} }