On Tue, Mar 09, 2010 at 05:43:02PM +0100, Ramon wrote:
> Am I the only one experiencing such problem? Is there any solution?
No, you are not the only one. Several others have mentioned the "busy
The response on the OpenMPI developers, as I understand it, is that
the MPI job should be the only one running, so a 100% busy wait is not
a problem. I hope the OpenMPI developers will correct me if I have
mis-stated their position.
I posted my cure for the problem some time ago. I have attached it
again to this message.
Hope that helps,
> Ramon wrote:
>> I've recently been trying to develop a client-server distributed file
>> system (for my thesis) using the MPI. The communication between the
>> machines is working great, however when ever the MPI_Comm_accept()
>> function is called, the server starts like consuming 100% of the CPU.
>> One interesting thing is that I tried to compile the same code using
>> the LAM/MPI library and the mentioned behaviour could not be observed.
>> Is this a bug?
>> On a side note, I'm using Ubuntu 9.10's default OpenMPI deb package.
>> Its version is 1.3.2.
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