output.txt

gupta2@juawei:~/test_codes$ cat hello_world.cpp 
#include <iostream>

int main()
{
    std::cout << "hello world\n";
}

gupta2@juawei:~/test_codes$ srun -N 1 -p x86-normal ./hello_world 
srun: error: task 0 launch failed: Invalid MPI plugin name

salloc.txt

gupta2@juawei:~$ salloc -N 1 -p x86-normal -q interactive -t 1:00:00
salloc: Granted job allocation 9614
Unloading all modules
New $SOFTWAREROOT: /opt/ohpc/pub/easybuild/software/juaweixeon
New $LMOD_SYSTEM_NAME: juaweixeon
New $ARCHITECTURE: Haswell
Re-setting $MODULEPATH to: 
/opt/ohpc/pub/easybuild/software/juaweixeon/Stages/2019b/UI/Compilers:/opt/ohpc/pub/easybuild/software/juaweixeon/Stages/2019b/UI/Tools:/opt/ohpc/pub/easybuild/modules/system
Was: 
/opt/ohpc/pub/easybuild/software/juaweixeon/Stages/2019b/UI/Compilers:/opt/ohpc/pub/easybuild/software/juaweixeon/Stages/2019b/UI/Tools:/opt/ohpc/pub/easybuild/modules/system

WARNING: Unloading this module might result in a broken environment. Please swap the module to use the desired architecture instead.

Switched to EasyBuild-based software-stack
gupta2@juawei:~$ srun lscpu
srun: error: task 0 launch failed: Invalid MPI plugin name