README.md

Test Model Component

This is a small stub of FORTRAN code which is used to simulate a model component for testing purposes.

Compilation

Spack compilation

Follow instructions to set up to use the ACCESS-NRI spack configuration.

Install using spack:

spack install access-test-component %intel@2021.10.0

In this case the compiler and version are specified, but they can be changed.

Direct compilation

On gadi this can be compiled like so

module load openmpi/4.1.7
module load intel-compiler/2021.10.0 

cd stub && CMAKE_PREFIX_PATH=/apps/openmpi/4.1.7/include/Intel cmake . && make

Note that CMAKE_PREFIX_PATH is specified in the spack-config so this is required to be specified explicitly to mimic what is done when built inside spack.

Sample Run

Spack

$ spack load access-test-component
$ mpirun -n 6 $(which hello_world.exe)
 Hello World from process:            1 of            6
 Hello World from process:            2 of            6
 Hello World from process:            3 of            6
 Hello World from process:            4 of            6
 Hello World from process:            5 of            6
 Hello World from process:            0 of            6

Direct

$ mpirun -n 6 build/hello_world.exe 
 Hello World from process:            0 of            6
 Hello World from process:            1 of            6
 Hello World from process:            2 of            6
 Hello World from process:            3 of            6
 Hello World from process:            4 of            6
 Hello World from process:            5 of            6
$