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Instructions and examples for compiling code for distributed and parallel applications can be found in the system-specific pages.

On cray system cray-mpich is loaded by default. On other systems to compile MPI enable code, for example with openmpi

$ module load openmpi/version
cc -c main.c 
cc -o main main.o -L/usr/local/mylib/libs -l<library-name>

To compile openMP enable code or MPI+openMP enabled code, use -fopenmp flag during compilation

$ cc -fopenmp -c main.c
$ cc -o main main.o -L/usr/local/mylib/libs -l<library-name>

To compile openACC enabled code or MPI+openACC enabled code, use -fopenmp flag during compilation

cc -fopenmp -c main.c
$ cc -o main main.o -L/usr/local/mylib/libs -l<library-name>

To compile HIP enabled GPU code or MPI+HIP enabled GPU code

$ module load rocm/version
$ module load cray-accel-amd-gxf90a
$ hipcc main.c

To compile CUDA enabled GPU code or MPI+CUDA enabled GPU code

$ module load cuda/version
$ nvcc main.c

Common compiler options

Some relevant families of compiler options are discussed here. A more comprehensive list of options can be found in system-specific pages as well as in the Serial optimisation section.

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