MPI_Bcast的相应接收例程 [英] Corresponding Receive Routine of MPI_Bcast

问题描述

广播例程MPI_Bcast对应的MPI接收例程是什么.

What would be the corresponding MPI receive routine of the broadcast routine, MPI_Bcast.

就是说，一个处理器向一组广播消息，比方说全世界，在这些过程中如何获得消息?

Namely, one processor broadcasts a message to a group, let's say all world, how I can have the message in these processes?

谢谢.

致谢

SRec

推荐答案

MPI_Bcast既是发送方也是接收方.

MPI_Bcast is both the sender and the receiver call.

考虑它的原型.

int MPI_Bcast ( void *buffer, int count, MPI_Datatype datatype, int root, MPI_Comm comm )

除id = root的机器以外的所有机器都是接收者.具有id = root的机器是发件人.

All machines except for the machine with id = root are receivers. The machine that has the id = root is the sender.

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