mpiicpc: Command not found

Question

I have a problem when trying to compile a code in C++. I installed the Intel Parallel Studio XE Cluster Edition 2020 but when i try to compile i have the following error : "mpiicpc: Command not found".

When i run the command icpc -v i get the following result "icc version 19.1.3.304 (gcc version 7.5.0 compatibility)" so i thought my installation was correct.

What i don't understand is that when i just type mpiicpc in the terminal it gives me a list of options that i can include with this command so i don't understand why i have this error during my compilation.

Thank you in advance for you help.

Here is the makefile i use (it comes from lammps and all my colleagues working on same machines as mine are able to compile it without problem so i don't think the problem is in the makefile but who knows)

# intel_cpu_intelmpi = USER-INTEL package, Intel MPI, MKL FFT

SHELL = /bin/sh

# ---------------------------------------------------------------------
# compiler/linker settings
# specify flags and libraries needed for your compiler

CC =        mpiicpc -std=c++11
OPTFLAGS =      -xHost -O2 -fp-model fast=2 -no-prec-div -qoverride-limits \
                -qopt-zmm-usage=high
CCFLAGS =   -qopenmp -qno-offload -ansi-alias -restrict \
                -DLMP_INTEL_USELRT -DLMP_USE_MKL_RNG $(OPTFLAGS) \
                -I$(MKLROOT)/include
SHFLAGS =   -fPIC
DEPFLAGS =  -M

LINK =      mpiicpc -std=c++11
LINKFLAGS = -qopenmp $(OPTFLAGS) -L$(MKLROOT)/lib/intel64/
LIB =           -ltbbmalloc -lmkl_intel_ilp64 -lmkl_sequential -lmkl_core   
SIZE =      size

ARCHIVE =   ar
ARFLAGS =   -rc
SHLIBFLAGS =    -shared

# ---------------------------------------------------------------------
# LAMMPS-specific settings, all OPTIONAL
# specify settings for LAMMPS features you will use
# if you change any -D setting, do full re-compile after "make clean"

# LAMMPS ifdef settings
# see possible settings in Section 3.5 of the manual

LMP_INC =   -DLAMMPS_GZIP

# MPI library
# see discussion in Section 3.4 of the manual
# MPI wrapper compiler/linker can provide this info
# can point to dummy MPI library in src/STUBS as in Makefile.serial
# use -D MPICH and OMPI settings in INC to avoid C++ lib conflicts
# INC = path for mpi.h, MPI compiler settings
# PATH = path for MPI library
# LIB = name of MPI library

MPI_INC =       -DMPICH_SKIP_MPICXX -DOMPI_SKIP_MPICXX=1
MPI_PATH = 
MPI_LIB =

# FFT library
# see discussion in Section 3.5.2 of manual
# can be left blank to use provided KISS FFT library
# INC = -DFFT setting, e.g. -DFFT_FFTW, FFT compiler settings
# PATH = path for FFT library
# LIB = name of FFT library

FFT_INC =       -DFFT_MKL -DFFT_SINGLE
FFT_PATH = 
FFT_LIB =

# JPEG and/or PNG library
# see discussion in Section 3.5.4 of manual
# only needed if -DLAMMPS_JPEG or -DLAMMPS_PNG listed with LMP_INC
# INC = path(s) for jpeglib.h and/or png.h
# PATH = path(s) for JPEG library and/or PNG library
# LIB = name(s) of JPEG library and/or PNG library

JPG_INC =
JPG_PATH =
JPG_LIB =

# ---------------------------------------------------------------------
# build rules and dependencies
# do not edit this section

include Makefile.package.settings
include Makefile.package

EXTRA_INC = $(LMP_INC) $(PKG_INC) $(MPI_INC) $(FFT_INC) $(JPG_INC) $(PKG_SYSINC)
EXTRA_PATH = $(PKG_PATH) $(MPI_PATH) $(FFT_PATH) $(JPG_PATH) $(PKG_SYSPATH)
EXTRA_LIB = $(PKG_LIB) $(MPI_LIB) $(FFT_LIB) $(JPG_LIB) $(PKG_SYSLIB)
EXTRA_CPP_DEPENDS = $(PKG_CPP_DEPENDS)
EXTRA_LINK_DEPENDS = $(PKG_LINK_DEPENDS)

# Path to src files

vpath %.cpp ..
vpath %.h ..

# Link target

$(EXE): main.o $(LMPLIB) $(EXTRA_LINK_DEPENDS)
    $(LINK) $(LINKFLAGS) main.o $(EXTRA_PATH) $(LMPLINK) $(EXTRA_LIB) $(LIB) -o $@
    $(SIZE) $@

# Library targets

$(ARLIB): $(OBJ) $(EXTRA_LINK_DEPENDS)
    @rm -f ../$(ARLIB)
    $(ARCHIVE) $(ARFLAGS) ../$(ARLIB) $(OBJ)
    @rm -f $(ARLIB)
    @ln -s ../$(ARLIB) $(ARLIB)

$(SHLIB): $(OBJ) $(EXTRA_LINK_DEPENDS)
    $(CC) $(CCFLAGS) $(SHFLAGS) $(SHLIBFLAGS) $(EXTRA_PATH) -o ../$(SHLIB) \
        $(OBJ) $(EXTRA_LIB) $(LIB)
    @rm -f $(SHLIB)
    @ln -s ../$(SHLIB) $(SHLIB)

# Compilation rules

%.o:%.cpp
    $(CC) $(CCFLAGS) $(SHFLAGS) $(EXTRA_INC) -c $<

# Individual dependencies

depend : fastdep.exe $(SRC)
    @./fastdep.exe $(EXTRA_INC) -- $^ > .depend || exit 1

fastdep.exe: ../DEPEND/fastdep.c
    cc -O -o $@ $<

sinclude .depend
```

 

Answer 1

Looks like you have not initialized Intel MPI Library correctly. There is an initialization script called mpivars.sh that you may source, before compiling or running your application. This script is generally located in a path similar to the one shown below. Adjust the path in the command below and report if you are now able to succeed.

$ source /opt/intel/version/intel64/bin/mpivars.sh