[OMPI users] Error in executing NAS Benchmarks

Hi, I am trying to execute NAS benchmark across 2 Nodes, each having 4 cores. The execution works fine on a single node, but when I try to execute the benchmark across 2 Nodes, I get an error like: mpiexec -machinefile hostfile.txt -n 8 ./ep.A.8 bash: orted: command not found ---

[OMPI users] Error in Binding MPI Process to a socket

Hi, I am trying to perform an experiment in which I can spawn 2 MPI processes, one on each socket in a 4 core node having 2 dual cores. I used the option "bind to socket" which mpirun for that but I am getting an error like: An attempt was made to bind a process to a specific hardware topology m

Re: [OMPI users] Error in Binding MPI Process to a socket

per to assign > processes to groups of cores in a socket. > > It's just that we can't do it automatically because the OS won't give us > the required info. > > See "mpirun -h" for more info on slot lists. > > On Mar 17, 2011, at 11:26 AM, vaibh

Re: [OMPI users] Error in Binding MPI Process to a socket

2.6.9-78.0.17.ELpapismp #1 SMP Tue Apr 7 13:14:04 CDT 2009 x86_64 x86_64 x86_64 GNU/Linux On Thu, Mar 17, 2011 at 2:55 PM, Ralph Castain wrote: > What OS version is it? > > uname -a > > will tell you, if you are on linux. > > On Mar 17, 2011, at 1:31 PM, vaibhav dutt wrot

[OMPI users] HWLOC problem

Hi, I have installed HWLOC 1.2 on my cluster , each node has two Intel Xeon E5450 quad cores. When I try to execute the command "lstopo" to determine the hardware topology of my system, I get an error like: ./lstopo: error while loading shared libraries: libhwloc.so.3: cannot open shared object f

[OMPI users] Polling and Interrupt

Hi all, Can anybody tell me how to enable the polling and interrupt/blocking execution in OpenMPI? Thanks

[OMPI users] Problem in using openmpi

Hi, I have installed openmpi on an Kubuntu , with Dual core Linux AMD Athlon When trying to compile a simple program, I am getting an error. mpicc: error while loading shared libraries: libopen-pal.so.0: cannot open shared object file: No such file or dir I read somewhere that this error is beca

Re: [OMPI users] Problem in using openmpi

d the libraries are located in > >> /home/jess/local/ompi/lib64, try (bash-like shell): > >> > >> export LD_LIBRARY_PATH= /home/jess/local/ompi/lib64 > >> > >> Hope this helps, > >> > >> -- > >> Samuel K. Gutierrez > >> Los

[OMPI users] MPI Literature Survey on Multicores

Hi all, I am doing a literature survey on MPI optimizations on Multi Cores and was searching for some good papers.I have got some papers on MPI Intra Node Data Transfer. Can anybody please suggest me how to go about it I mean how can I organize the Survey and also some good source of papers on the