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Subject: Re: [OMPI users] Sending relatively large messages with high frequency
From: Brian Budge (brian.budge_at_[hidden])
Date: 2010-02-25 09:09:42


Is your code multithreaded?

On Feb 25, 2010 12:56 AM, "Amr Hassan" <amr.abdelaziz_at_[hidden]> wrote:

Thanks alot for your reply,

I'm using blocking Send and Receive. All the clients are sending data and
the server is receive the messages from the clients with MPI_ANY_SOURCE as
the sender. Do you think there is a race condition near this pattern?

I searched a lot and used totalview but I couldn't detect such case. I
really appreciate if you send me a link or give an example of a possible
race condition in that scenario .

Also, when I partition the message into smaller parts (send in sequence -
all the other clients wait until the send finish) it works fine. is that
exclude the race condition?

Regards,
Amr

>>We've seen similar things in our code. In our case it is probably due to a

>>race condition....

>>On Feb 24, 2010 9:36 PM, "Amr Hassan " <amr.abdelaziz_at_[hidden]>
wrote:

>>Hi All,

>>I'm ...

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