Dear RegCMers
I'am trying without success to run RegCM3 in parallel mode with 2 procesors.
I use Intel Fortran and I have installed openmpi
but when I write "mpirun -np 2 ./regcm" I receive the following error:

forrtl: severe (24): end-of-file during read, unit -4, file stdin
Image              PC        Routine            Line        Source            
regcm              081D3D7D  Unknown               Unknown  Unknown
regcm              081D32F5  Unknown               Unknown  Unknown
regcm              08195BA8  Unknown               Unknown  Unknown
regcm              08155903  Unknown               Unknown  Unknown
regcm              08155260  Unknown               Unknown  Unknown
regcm              08171D24  Unknown               Unknown  Unknown
regcm              080DDCAF  Unknown               Unknown  Unknown
regcm              08118866  Unknown               Unknown  Unknown
regcm              08049D21  Unknown               Unknown  Unknown
libc.so.6          B7D6B5C5  Unknown               Unknown  Unknown
regcm              08049C31  Unknown               Unknown  Unknown

can you help me fix this error? is the command I whote sutable for openmpi?
my makefile is:

#  Makefile for RegCM@
FFLAGS = -fpe3 -tpp7 -cm -w -w90 -w95 -convert big_endian
FC = ifort
LD = $(FC)
SRC = \
aermix.f ...
OBJ = \
aermix.o ...
all: regcm
regcm:    $(OBJ)
    $(LD) -o $@ $(FFLAGS) $(OBJ) -Vaxlib
clean:
    rm -f $(OBJ) regcm *.o

Must I make changes in makefile? if yes how please?
I thank you very much for help
Cordially
Sassi