14年8月27日 20:39
收件人: Open MPI Users
主题: Re: [OMPI users] 答复: Does multiple Irecv means concurrent receiving ?
You have a physical constraint, the capacity of your links. If you are over 90%
of your network bandwidth, there is little to be improved.
George.
On Aug 27, 2014, at 0:18, "Zhan
rs [mailto:users-boun...@open-mpi.org] 代表 Jeff Squyres (jsquyres)
发送时间: 2014年8月23日 20:03
收件人: Open MPI User's List
主题: Re: [OMPI users] Does multiple Irecv means concurrent receiving ?
On Aug 20, 2014, at 3:37 AM, Zhang,Lei(Ecom) wrote:
> I have a performance problem with receiving. In a
I have a performance problem with receiving. In a single master thread, I made
several Irecv calls:
Irecv(buf1, ..., tag, ANY_SOURCE, COMM_WORLD)
Irecv(buf2, ..., tag, ANY_SOURCE, COMM_WORLD)
...
Irecv(bufn, ..., tag, ANY_SOURCE, COMM_WORLD)
all of which try to receive from any node for messages
