Re: [OMPI users] Sending relatively large messages with high frequency

2010-02-25 Thread Amr Hassan
Hi All, Thanks a lot for your support. It was a big help. I found a race condition in my code and now the problem is solved. Regards, Amr On Fri, Feb 26, 2010 at 7:45 AM, Prentice Bisbal wrote: > Amr Hassan wrote: > > Thanks alot for your reply, > > > > I'm using

Re: [OMPI users] Sending relatively large messages with high frequency

2010-02-25 Thread Amr Hassan
Yes but only one thread at each client is allowed to use MPI. Also, there is a semaphore on the MPI usage. On Fri, Feb 26, 2010 at 1:09 AM, Brian Budge wrote: > Is your code multithreaded? > > On Feb 25, 2010 12:56 AM, "Amr Hassan" wrote: > > Thanks alot for

Re: [OMPI users] Sending relatively large messages with high frequency

2010-02-25 Thread Amr Hassan
e the race condition? Regards, Amr >>We've seen similar things in our code. In our case it is probably due to a >>race condition. Try running the segv'ing process in a debugger, and it will >>likely show you a bug in your code >>On Feb 24, 2010 9:36 PM, "A

[OMPI users] Sending relatively large messages with high frequency

2010-02-25 Thread Amr Hassan
Hi All, I'm facing a strange problem with OpenMPI. I'm developing an application which is required to send a message from each client (1 MB each) to a server node for around 10 times per second (it's a distributed render application and I'm trying to reach a higher frame rate ). The problem is t