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Subject: Re: [OMPI users] mixing send and bcast
From: Ashley Pittman (ashley_at_[hidden])
Date: 2011-01-08 08:01:12

On 8 Jan 2011, at 12:05, Hicham Mouline wrote:

> Hi
> Will MPI_Probe return that there is a message pending reception if the sender MPI_Bcast a message?


> Is the only way to receive a broadcast from the root is to call MPI_BCast in the slave?


Broadcast and the other collective operations are just that, "collective" and have to be called from all ranks in a communicator with the same parameters and in the same order.


Ashley Pittman, Bath, UK.
Padb - A parallel job inspection tool for cluster computing