Re: [OMPI users] [Fwd: MPI_SEND blocks when crossing node boundary]

2006-03-10 Thread Cezary Sliwa
Jeff Squyres wrote: One additional question: are you using TCP as your communications network, and if so, do either of the nodes that you are running on have more than one TCP NIC? We recently fixed a bug for situations where at least one node in on multiple TCP networks, not all of which

Re: [OMPI users] [Fwd: MPI_SEND blocks when crossing node boundary]

2006-03-10 Thread Cezary Sliwa
Jeff Squyres wrote: One additional question: are you using TCP as your communications network, and if so, do either of the nodes that you are running on have more than one TCP NIC? We recently fixed a bug for situations Yes, precisely. where at least one node in on multiple TCP network

Re: [OMPI users] [Fwd: MPI_SEND blocks when crossing node boundary]

2006-03-10 Thread Jeff Squyres
On Mar 10, 2006, at 6:01 AM, Cezary Sliwa wrote: http://www.open-mpi.org/community/lists/users/2006/02/0712.php I have a simple program in which the rank 0 task dispatches compute tasks to other processes. It works fine on one 4-way SMP machine, but when I try to run it on two nodes, the

Re: [OMPI users] [Fwd: MPI_SEND blocks when crossing node boundary]

2006-03-10 Thread Cezary Sliwa
Cezary Sliwa wrote: Jeff Squyres wrote: Please note that I replied to your original post: http://www.open-mpi.org/community/lists/users/2006/02/0712.php Was that not sufficient? If not, please provide more details on what you are attempting to do and what is occurring. Thanks.

Re: [OMPI users] [Fwd: MPI_SEND blocks when crossing node boundary]

2006-03-10 Thread Cezary Sliwa
Jeff Squyres wrote: Please note that I replied to your original post: http://www.open-mpi.org/community/lists/users/2006/02/0712.php Was that not sufficient? If not, please provide more details on what you are attempting to do and what is occurring. Thanks. I have a simple program

Re: [OMPI users] [Fwd: MPI_SEND blocks when crossing node boundary]

2006-03-09 Thread Jeff Squyres
Please note that I replied to your original post: http://www.open-mpi.org/community/lists/users/2006/02/0712.php Was that not sufficient? If not, please provide more details on what you are attempting to do and what is occurring. Thanks. On Mar 7, 2006, at 2:36 PM, Cezary Sliwa wrote

[OMPI users] [Fwd: MPI_SEND blocks when crossing node boundary]

2006-03-07 Thread Cezary Sliwa
Hello again, The problem is that MPI_SEND blocks forever (the message is still not delivered after many hours). Cezary Sliwa --- Begin Message --- My program runs fine with openmpi-1.0.1 when run from the command line (5 processes with empty host file), but when I schedule it with qsub to