[nilayr]

The environment variables are set here ... in

# wmake configuration
export WM_DIR=$WM_PROJECT_DIR/wmake
export WM_LINK_LANGUAGE=c++
export WM_OPTIONS=$WM_ARCH$WM_COMPILER$WM_PRECISION_OPTION$WM_COMPILE_OPTION
 # base executables/libraries
export FOAM_APPBIN=$WM_PROJECT_DIR/platforms/$WM_OPTIONS/bin
export FOAM_LIBBIN=$WM_PROJECT_DIR/platforms/$WM_OPTIONS/lib

However we are compiling against gnu compilers 4.8.1 and mpich-3.0.4.

A directory gets created with

OpenFOAM-2.3.0/platforms/linux64GccDPOpt/bin/interFoam

NOTE THE CAPITAL G in Gcc.

[shah.nee@discovery2 damBreakFine]$ env | grep LIBBIN
FOAM_EXT_LIBBIN=/shared/apps/openfoam/openfoam-2.3/install/ThirdParty-2.3.0/platforms/linux64gccDPOpt/lib
FOAM_SITE_LIBBIN=/shared/apps/openfoam/openfoam-2.3/install/site/2.3.0/platforms/linux64gccDPOpt/lib
FOAM_USER_LIBBIN=/home/shah.nee/OpenFOAM/shah.nee-2.3.0/platforms/linux64gccDPOpt/lib
FOAM_LIBBIN=/shared/apps/openfoam/openfoam-2.3/install/OpenFOAM-2.3.0/platforms/linux64gccDPOpt/lib

However env has small "g" in linux64gccDPOpt.

etc/bashrc has
 #- MPI implementation:
#    WM_MPLIB = SYSTEMOPENMPI | OPENMPI | MPICH | MPICH-GM | HPMPI
#               | GAMMA | MPI | QSMPI | SGIMPI
export WM_MPLIB=MPICH

We get the following error:

[shah.nee@discovery2 damBreakFine]$ cat error_file 
 
--> FOAM FATAL ERROR: 
 --> FOAM FATAL ERROR: 
Trying to use the dummy Pstream library.
This dummy library cannot be used in parallel mode
     From function UPstream::init(int& argc, char**& argv)
    in file UPstream.C at line 37.
 
--> FOAM FATAL ERROR: 
Trying to use the dummy Pstream library.
This dummy library cannot be used in parallel mode
     From function UPstream::init(int& argc, char**& argv)
    in file UPstream.C at line 37.
 FOAM exiting
  
 --> FOAM FATAL ERROR: 
Trying to use the dummy Pstream library.
This dummy library cannot be used in parallel mode
     From function UPstream::init(int& argc, char**& argv)
    in file UPstream.C at line 37.
 FOAM exiting
 
Trying to use the dummy Pstream library.
This dummy library cannot be used in parallel mode
     From function UPstream::init(int& argc, char**& argv)
    in file UPstream.C at line 37.
 FOAM exiting
 
FOAM exiting
 [shah.nee@discovery2 damBreakFine]$

What is wrong?

[wyldckat]

Greetings Nilay and welcome to the forum!

I don't know if you've managed to solve this issue already or not, but from the looks of things, I'd say that something has been incorrectly configured in the "OpenFOAM/2.3.0/etc/bashrc" file.

For example, if you run this command:

echo $WM_COMPILER

does it show "gcc" or "Gcc"? Because the correct setting should be "Gcc".

Therefore, if it shows "gcc", then edit the file "OpenFOAM/2.3.0/etc/bashrc" and fix the line that defines "WM_COMPILER".

Best regards,
Bruno