Just figured it out. The only thing different from when it ran yesterday to today was I was connected to a network. So I connected my laptop to a network and it worked again.
Thanks for all your help, Damien! I'm sure I'm gonna get stuck more along the way so hoping you can help. -- Vimal From: users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] On Behalf Of Damien Sent: Friday, June 15, 2012 2:57 PM To: Open MPI Users Subject: Re: [OMPI users] Building MPI on Windows Hmmm. Two things. Can you run helloworldMPI.exe on it's own? It should output "Number of threads = 1, My rank = 0" Also, can you post the output of ompi_info ? I think you might still have some path mixups. A successful OpenMPI build with this simple program should just work. If you still have the other OpenMPIs installed from the binaries, you might want to try uninstalling all of them and rebooting. Also if you rebuilt OpenMPI and helloworldMPI with VS 2010, make sure that helloworldMPI is actually linked to those VS2010 OpenMPI libs by setting the right lib path in the Linker options. Linking to VS2008 libs and trying to run with VS2010 dlls/exes could cause problems too. Damien On 15/06/2012 11:44 AM, vimalmat...@eaton.com wrote: Hi Damien, I installed MS Visual Studio 2010 and tried the whole procedure again and it worked! That's the great news. Now the bad news is that I'm trying to run the program again using mpiexec and it won't! I get these error messages: orte_rml_base_select failed orte_ess_set_name failed, with a bunch of text saying it could be due to configuration or environment problems and will make sense only to an OpenMPI developer. Help! -- Vimal From: users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] On Behalf Of Damien Sent: Thursday, June 14, 2012 4:55 PM To: Open MPI Users Subject: Re: [OMPI users] Building MPI on Windows You did build the project, right? The helloworldMPI.exe is in the Debug directory? On 14/06/2012 1:49 PM, vimalmat...@eaton.com wrote: No luck. Output: Microsoft Windows [Version 6.1.7601] Copyright (c) 2009 Microsoft Corporation. All rights reserved. C:\Users\...>cd "C:\Users\C9995799\Downloads\helloworldMPI\Debug" C:\Users\...\Downloads\helloworldMPI\Debug>mpiexec -n 2 helloworldMPI.exe ------------------------------------------------------------------------ -- mpiexec was unable to launch the specified application as it could not find an e xecutable: Executable: helloworldMPI.exe Node: SOUMIWHP5003567 while attempting to start process rank 0. ------------------------------------------------------------------------ -- 2 total processes failed to start C:\Users\...\Downloads\helloworldMPI\Debug> -- Vimal From: users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] On Behalf Of Damien Sent: Thursday, June 14, 2012 3:38 PM To: Open MPI Users Subject: Re: [OMPI users] Building MPI on Windows Here's a MPI Hello World project based on your code. It runs fine on my machine. You'll need to change the include and lib paths as we discussed before to match your paths, and copy those bin files over to the Debug directory. Run it with this to start: "mpiexec -n 1 helloworldMPI.exe". Then change the -n 1 to -n x where x is the number of cores you have. Say yes to allowing mpiexec firewall access if that comes up. If this bombs out, there's something wrong on your machine. Damien _______________________________________________ users mailing list us...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/users
