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, "Amr Hassan" <email@example.com> wrote:
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 that OpenMPI crash in that case and only works if I partition this messages into a set of 20 k sub-messages with a sleep between each one of them for around 1 to 10 ms!! This solution is very expensive in term of time needed to send the data. Is there any other solutions?
The error i got now is:
Signal: Segmentation fault (11)
Signal code: Address not mapped (1)
Failing at address: xxxxxxxxxxxxx
The OS is Linux CentOS. I'm using the latest version of OpenMPI.
I appreciate any help regarding that.
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