文献阅读《Adaptive and Hierarchical Large Message All-to-all Communication Algorithms...》

I. 前置内容 在了解集合通信(Collective Communication)之前要先了解点P2P对点通信(Point-to-Point)。P2P通信通常为两个不同进程间的通信,是1对1的; 在MPI规范中,既有同步阻塞的P2P接口:MPI_send和MPI_Recv接口,也定义了非阻塞的P2P
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