C/C++

Using Intel Compilers

Load the Intel module

If you need to use different version of intel compilers than the default version in HPC, please check the modules and then load the appropriate one. check the Intel modules:

module spider intel

output:

        intel/2020b

        intel/2021b

        intel/2022a

        intel/2024a

Load the appropriate module:

module load intel/<version>

To check the version of Intel Compilers, type:

icx --version

output:

Intel(R) oneAPI DPC++/C++ Compiler 2024.2.0 (2024.2.0.20240602)

Compiling a Code & Executing

Compiling a C or C++ Program

Interactive

Request the compute node:

srun --pty bash

Copy the content below in a hello.c file

 hello.c:

#include <stdio.h>

int main()

{

    printf("Hello World\n");

    return 0;

}

Compile the code to create "hello" as an executable

icx -o hello hello.c

Run the Executable

./hello

Your output will be: Hello World

Batch

Copy the content in your file (let's say job.slurm).

#!/bin/bash

#SBATCH -o hello.o%j

#SBATCH --time=00:02:00

#SBATCH -N 1

#SBATCH -n 1

#Compiling section

module load intel/2024a

icx -o hello hello.c

#Copying files to scratch

cp -r hello $PFSDIR

#Running job

cd $PFSDIR

./hello

cp -ru * $SLURM_SUBMIT_DIR

Submit the job:

sbatch job.slurm

You will find the output at hello.o<jobid>

To compile the C++ source file "test.cpp" with the Intel C++ compiler, use the command

 icpx -o test test.cpp