The IOIPSL Library

The IOIPSL (for Input Output IPSL) library is a library used by the GCM to read in input parameters from the run.def text file and related *.def files. It can in fact do more, such as writing output NetCDF files a, a feature not used by the Generic model's physics package.

Just like for any library, one should need to only install it once and then just use it by linking

Installing the IOIPSL library =

There are some dedicated scripts in LMDZ.COMMON/ioipsl that one can adapt and use, hopefully without too much trouble using pointers and information given here

Prerequisites

IOIPSL is written in Fortran, so you need to have a Fortran compiler at hand (gfortran in the following examples), as well as an available NetCDF library compiled using that same compiler.

Checking that the install is successfull

If the previous step went well the IOIPSL/lib directory should contain the library:

libioipsl.a

and the IOIPSL/inc directory should contain the following module files:

calendar.mod   flincom.mod   histcom.mod  restcom.mod
defprec.mod    fliocom.mod   ioipsl.mod   stringop.mod
errioipsl.mod  getincom.mod  mathelp.mod

Know problems worth knowing about

• Recent versions of the IOIPSL fails to work properly if compiled by gfortran version 4.8.5 (see e.g. https://trac.lmd.jussieu.fr/Planeto/ticket/62 ).
• As of April 2022 the IOISPL distribution requires username/password authentication. Not a problem (no need for any specific registration step) as there is a generic username/password that can be used (see the provided IOIPSL install scripts where this information is hard coded).