Re: [OMPI users] numactl with torque cpusets

2011-11-21 Thread Jeff Squyres
For the web archives... Brock and I talked about this in person at SC. The conversation was much more involved than this seemingly-simple question implied. :-) The short version is: - numactl does both memory and processor binding - hwloc is the new numactl :-) - e.g., see the hwloc-bind(1)

Re: [OMPI users] orte_debugger_select and orte_ess_set_name failed

2011-11-21 Thread MM
Hi, I have placed the source in \Program Files\openmpi-1.5.4 the build dir in \Program Files\openmpi.build and the install dir in \Program Files\openmpi I could not find config.log in any of the 3 directories nor in the directory from which I run mpirun. The build log attached is a zip of all th

Re: [OMPI users] UDP like messaging with MPI

2011-11-21 Thread Jeremiah Willcock
On Mon, 21 Nov 2011, Mudassar Majeed wrote: Thank you for your answer. Actually, I used the term UDP to show the non-connection oriented messaging. TCP creates connection between two parties (who communicate) but in UDP a message can be sent to any IP/port where a process/thread is listening

Re: [OMPI users] UDP like messaging with MPI

2011-11-21 Thread Mudassar Majeed
Thank you for your answer. Actually, I used the term UDP to show the non-connection oriented messaging. TCP creates connection between two parties (who communicate) but in UDP a message can be sent to any IP/port where a process/thread is listening to, and if the process is busy in doing somethi

Re: [OMPI users] openmpi and mingw32?

2011-11-21 Thread John R. Cary
On 11/21/2011 5:43 AM, Shiqing Fan wrote: Hi John, Yes, there will be an initial build support for MinGW, but a few runtime issues still need to be fixed. If you want to try the current one, please download one of the latest 1.5 nightly tarballs. Please just let me know if you got problems o

Re: [OMPI users] UDP like messaging with MPI

2011-11-21 Thread Jeff Squyres
MPI defines only reliable communications -- it's not quite the same thing as UDP. Hence, if you send something, it is guaranteed to be able to be received. UDP may drop packets whenever it feels like it (e.g., when it is out of resources). Most MPI implementations will do some form of buffer

Re: [OMPI users] How are the Open MPI processes spawned?

2011-11-21 Thread Ralph Castain
No real ideas, I'm afraid. We regularly launch much larger jobs than that using ssh without problem, so it is likely something about the local setup of that node that is causing the problem. Offhand, it sounds like either the mapper isn't getting things right, or for some reason the daemon on 00

[OMPI users] How are the Open MPI processes spawned?

2011-11-21 Thread Paul Kapinos
Hello Open MPI volks, We use OpenMPI 1.5.3 on our pretty new 1800+ nodes InfiniBand cluster, and we have some strange hangups if starting OpenMPI processes. The nodes are named linuxbsc001,linuxbsc002,... (with some lacuna due of offline nodes). Each node is accessible from each other over S

Re: [OMPI users] orte_debugger_select and orte_ess_set_name failed

2011-11-21 Thread Shiqing Fan
Hi, Could you please send your config and build log to me? Have you tried with a simpler program? Does this error always happen? Regards, Shiqing On 2011-11-19 4:24 PM, MM wrote: Trying to run my program linked against debug 1.5.4 on vs2010 fails: mpirun -np 1 .\nhui\Debug\nhui.exe : -np

Re: [OMPI users] openmpi and mingw32?

2011-11-21 Thread Shiqing Fan
Hi John, Yes, there will be an initial build support for MinGW, but a few runtime issues still need to be fixed. If you want to try the current one, please download one of the latest 1.5 nightly tarballs. Please just let me know if you got problems on that. Feedback would be helpful and appr