Environment

User Guide

Shaheen II User Guide

Training Materials

KAUST provides instructional materials about the programming environments on Shaheen.

• Programming/Runtime Environment

• List of User Training Materials

Programming Environments

Shaheen provides three different programming environments

There are three different compiler environments, each with their own compilers:

• PrgEnv-cray (crayftn, craycc, crayCC)

• PrgEnv-intel (ifort, icc, icpc)

• PrgEnv-gnu (gfortran, gcc, g++)

According to the documentation:

All applications that will run in parallel on the Cray XC should be compiled with standard language wrappers: cc for C, CC for C++, and ftn for Fortran.

Note

Using the ftn wrapper means that the appropriate Fortran compiler will be used, regardless of the programming environment.

No additional MPI flags are needed as they are included by wrappers.

Again, according to the documentation:

There is no universally fastest compiler – but performance depends on the application, even input. However Cray is trying to excel with the Cray Compiler Environment. Compiler flags do matter – be ready to spend some effort finding the best ones for your application.