Increasing the resolution: BENGUELA_VHR

10. Increasing the resolution: BENGUELA_VHR#

Now that you have successfully run the default configuration, you can try running another configuration: BENGUELA_VHR.

  1. Create a new configuration directory for BENGUELA_VHR

  2. Do the appropriate changes preprocessing to increase the resolution to 1/12° for this new configuration :

    • Using Matlab croco_tools : as for the previous configuration, edit the paths in start.m and crocotools_param.m (or copy start.m and crocotools_param.m from BENGUELA_LR)

    • Using Python croco_pytools : edit the *.ini files from BENGUELA_LR

  3. Re-run preprocessing for this new configuration (grid, bulk, forcing, bry, ini) from Matlab croco_tools or Python croco_pytools

  4. Make the appropriate changes in cppdefs.h (define BENGUELA_VHR, MPI, BULK_FLUX, FRC_BRY, undef CLIMATOLOGY), and param.h for running BENGUELA_VHR in parallel on 16 CPUs

  5. As for the previous configuration, edit the paths in jobcomp (or copy jobcomp from BENGUELA_LR). And re-compile the model

  6. Make the appropriate changes in croco.in: change the time step!

  7. As in the previous configuration, copy the batch job:

    cp ~/croco/croco/SCRIPTS/example_job_croco_mpi.pbs .

    Edit it (notably change the number of CPUs used), and run the model:

    qsub example_job_croco_mpi.pbs

  8. Test questions:

    • On how much CPUs could you run the model (max # of CPUs)?