Md tutorial problem
 

hi every one
i wanted to test the MD solver in Openfoam by running the nano-nozzel tutorial.
here is the problem i encounter :

mehdi@mehdi-laptop:~/OpenFOAM/mehdi-1.6/run/tutorials/discreteMethods/molecularDynamics/mdFoam/nanoNozzle$ blockMesh

blockMesh runs with no problem
then

mehdi@mehdi-laptop:~/OpenFOAM/mehdi-1.6/run/tutorials/discreteMethods/molecularDynamics/mdFoam/nanoNozzle$ decomposePar

but when i try to run the case by
mpirun -np 4 gnemdFoam -parallel > log &
i get

[1] 4952
mehdi@mehdi-laptop:~/OpenFOAM/mehdi-1.6/run/tutorials/discreteMethods/molecularDynamics/mdFoam/nanoNozzle$ --------------------------------------------------------------------------
mpirun was unable to launch the specified application as it could not find an executable:

Executable: gnemdFoam
Node: mehdi-laptop

while attempting to start process rank 0.
--------------------------------------------------------------------------

and when i try to run mdFoam

mehdi@mehdi-laptop:~/OpenFOAM/mehdi-1.6/run/tutorials/discreteMethods/molecularDynamics/mdFoam/nanoNozzle$ mdFoam

i get

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0


Reading potential dictionary:


cannot open file

file: /home/mehdi/OpenFOAM/mehdi-1.6/run/tutorials/discreteMethods/molecularDynamics/mdFoam/nanoNozzle/constant/idList at line 0.

From function regIOobject::readStream()
in file db/regIOobject/regIOobjectRead.C at line 62.

FOAM exiting

what shall i do? :confused:

nothing ??? :confused: