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Subject: [OMPI users] Problem to Run Hello World on a desktop with Cygwin and OpenMPI 1.7.5
From: Sergii Veremieiev (s.veremieiev_at_[hidden])
Date: 2014-05-30 07:45:57

Dear Sir/Madam,

I'm trying to compile and run a simple "Hello World" C++/MPI code on my
personal desktop machine (6-core Intel Core i7-3930K CPU with Windows 7 SP1
and Cygwin with the default built-in Open MPI 1.7.5 and GCC 4.8.2). I'm
beginner with this, never run parallel codes on desktops, only on a
cluster. Here is the code:

using namespace std;

#include "mpi.h"

int main(int argc, char *argv[])


   int noprocs, nid;


   nid = MPI::COMM_WORLD.Get_rank();

   noprocs = MPI::COMM_WORLD.Get_size();

   if (nid==0) cout << "Hello from processor " << nid << " of " << noprocs
<< endl;



Using “mpicxx -o Hello Hello.cpp” the code compiles without any problems
and generates an executable. However when I try to run the code using
“mpirun -np 1 Hello” or “mpiexec -n 1 Hello” the following error message is

[byenr502b-01f:06620] opal_os_dirpath_create: Error: Unable to create the
sub-directory (/tmp/openmpi-sessions-enrsvere_at_byenr502b-01f_0/11302) of
(/tmp/openmpi-sessions-enrsvere_at_byenr502b-01f_0/11302/0/0), mkdir failed [1]

[byenr502b-01f:06620] [[11302,0],0] ORTE_ERROR_LOG: Error in file
at line 107

[byenr502b-01f:06620] [[11302,0],0] ORTE_ERROR_LOG: Error in file
at line 402

[byenr502b-01f:06620] [[11302,0],0] ORTE_ERROR_LOG: Error in file
at line 604


It looks like orte_init failed for some reason; your parallel process is

likely to abort. There are many reasons that a parallel process can

fail during orte_init; some of which are due to configuration or

environment problems. This failure appears to be an internal failure;

here's some additional information (which may only be relevant to an

Open MPI developer):

  orte_session_dir failed

  --> Returned value Error (-1) instead of ORTE_SUCCESS


Please help me to understand what is the problem. For your information here
is the output of the following commands:

$ echo $PATH

/usr/local/bin:/usr/bin:/cygdrive/c/Program Files (x86)/NVIDIA
Corporation/PhysX/Common:/cygdrive/c/Program Files (x86)/Intel/iCLS
Client:/cygdrive/c/Program Files/Intel/iCLS
Files/Intel/Intel(R) Management Engine Components/DAL:/cygdrive/c/Program
Files/Intel/Intel(R) Management Engine Components/IPT:/cygdrive/c/Program
Files (x86)/Intel/Intel(R) Management Engine
Components/DAL:/cygdrive/c/Program Files (x86)/Intel/Intel(R) Management
Engine Components/IPT:/cygdrive/d/Program Files/ATI
Technologies/ATI.ACE/Core-Static:/cygdrive/c/Program Files (x86)/Microsoft
SQL Server/100/Tools/Binn:/cygdrive/c/Program Files/Microsoft SQL
Server/100/Tools/Binn:/cygdrive/c/Program Files/Microsoft SQL


$ ompi_info -v ompi full --parsable

ompi_info: Error: unknown option "-v"

Type 'ompi_info --help' for usage.

I also attach a lengthy output of "ompi_info --all". Please do not hesitate
if you require any further information.

Best regards,