ショウキボ PC クラスタ チューニング

最近,低価格なPCクラスタが注目を浴びている.しかし,各PC間でやりとりする情報量が多い並列処理では,その通信遅延がボトルネックとなり,性能が向上しない.そこで,我々はPC同士をクロスケーブルで接続するクロス接続方式を提案する.さらに,Gigabit Ethernetで用いられている受信割り込み遅延機能を無効化し, Channel Bondingを利用した.今回4台のPCクラスタ上にクロス接続方式を実装した. NAS並列ベンチマークIS(クラスA)の評価では2.5倍の性能向上を得ている.Recently, a low-priced PC-cluster has attracted much attention. However, parallel processing that requires a lot of communication data can't improve its performance because of communication delay. In order to overcome such a bottleneck, we propose a cross connection method that connects PCs with cross cables. Furthermore, we ignored receive interrupt delay function that is used on Gigabit Ethernet and used Channel Bonding. This time, cross connection method has been implemented on a 4 node PC cluster. The results show that the IS (class A) performance on this cluster is 2.6 times faster than conventional system using switch