Re: [OMPI users] MPI_Comm_accept randomly gives errors

2012-10-15 Thread Valentin Clement
Thanks for the information. As there is also a problem with intercommunicator after spawn in 1.6.x I'll turn to another solution. Valentin Clément On Oct 15, 2012, at 10:41 PM, Ralph Castain wrote: > Yeah, we don't support multi-threaded operations very well at this time. I > think you'd h

Re: [OMPI users] MPI_Comm_accept randomly gives errors

2012-10-15 Thread Ralph Castain
Yeah, we don't support multi-threaded operations very well at this time. I think you'd have better success with the 1.7 series as it is released, but very much doubt the 1.6 series could do this as you describe. One way to solve the immediate problem would be to funnel all MPI operations into a

[OMPI users] MPI_Comm_accept randomly gives errors

2012-10-04 Thread Valentin Clement
Hi everyone, I'm currently implementing communication based on MPI in our parallel language middle-ware POP-C++. It was using TCP/IP socket before but due to a project to port the language on a supercomputer, I have to use OpenMPI for the communication. I successfully change the old communication b