Error accurred in parallel in cluster

I have installed gcc4.7.0, openmpi-1.6.5 and LIGGGGHTS-3.1.0, OpenFOAM-2.3.1, CFDEM-2.3.1. When I test under OpenFOAM and under LIGGGHTS, it works well. However, when I want to test ErgunTestMPI under CFDEM, some errors occur like below:

Create time
Create mesh for time = 0
Reading field p

Reading physical velocity field U
Note: only if voidfraction at boundary is 1, U is superficial velocity!!!

Reading momentum exchange field Ksl

Reading voidfraction field voidfraction = (Vgas/Vparticle)

Creating dummy density field rho

Reading particle velocity field Us

Reading/calculating face flux field phi

Selecting incompressible transport model Newtonian
Selecting turbulence model type LESModel
Selecting LES turbulence model Smagorinsky
Selecting LES delta type cubeRootVol
SmagorinskyCoeffs
{
ce 1.048;
ck 0.094;
}

Reading g
Selecting locateModel engine
Selecting dataExchangeModel twoWayMPI
Starting up LIGGGHTS for first time execution
*** The MPI_Comm_rank() function was called before MPI_INIT was invoked.
*** This is disallowed by the MPI standard.
*** Your MPI job will now abort.
[mnode:2654] Local abort before MPI_INIT completed successfully; not able to aggregate error messages, and not able to guarantee that all other processes were killed!

I don't know how to deal with it, errors occurs after "Starting up LIGGGHTS for first time execution", namely, it can not execute "../DEM/in.liggghts_run", could anyone help me?

The executions are as follow:
in DEM, I execute "mpirun -np 4 ./lmp_fedora_fpic < in.liggghts.init", it works well;
then in CFD, I execute "blockMesh", "decomposePar", "cfdemSolverPiso", and then errors accur like above.