Quick Install and Run Mars PEM

How to install the model

To download the model you'll need to follow exactly the same step as dowloading the martian model. You can have a look at the section Quick Install and Run of Mars Model and follow the "Prerequisites: Tools and Libraries" steps.

The PEM is dowlnload alongside with the LMDZ.COMMON repository. The Fortran code of the PEM is in the following directory : trunk/LMDZ.COMMON/libf/evolution/ The main program is in the file pem.F90

Compiling the test case

To compile the PEM at the sought resolution, run (in LMDZ.COMMON):

./makelmdz_fcm -arch local -p mars -d 64x48x54 -j 8 pem

Here, we assume that you have generated the arch-local.* files as per what is suggested in the previous section. The options for makelmdz_fcm used here imply:

• -p mars: the PEM will use the "mars" physics package
• -d 64x48x54: the PEM grid will be 64x48 in longitude x latitude, with 54 vertical levels.

For a glimpse at all the possible makelmdz_fcm options and their meanings, run:

./makelmdz_fcm -h

and/or check the dedicated makelmdz_fcm page.

Upon successful compilation, the executable pem_64x48x29_phymars_seq.e should be generated in the bin subdirectory.

To run the PEM you'll also need a valid PCM, you can compile it using a similar command:

./makelmdz_fcm -arch local -p mars -parallel mpi_omp -io XIOS -d 64x48x54 -j 8 gcm

To run the PEM you'll also need a tool (reshape_xios_output) that will e explained later, you can compile it using a similar command:

./makelmdz_fcm -arch local -p mars -d 64x48x54 -j 8 reshape_xios_output

run_pem1

xml files

reshape_xios_output

Input output

Choices of parameters (run_PEM.def) => advanced topic