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The PALM configuration file

Running PALM with the palmrun script or compiling PALM with palmbuild requires a configuration file in the working directory from where the scripts are called. The configuration file contains information about

• the compiler and compiler options to be used
• paths to required libraries (e.g. MPI, netCDF, or fftw)
• preprocessor directives to switch on/off special features of PALM
• paths to be used for storing PALM's input and output files
• paths where user-interface routines and job protocol files can be found
• the execute command to be used for starting the PALM executable
• settings of other UNIX environment variable
• batch job directives
• unix commands to be executed before / after the PALM code is started, or that should be carried out in case of errors that appeared during the run

If PALM has been successfully installed by the automatic installer, the installer creates a configuration file named .palm.config.default in the working directory of the user (which by default is assumed to be $HOME/palm/current_version). This file should contain all relevant information to run PALM on the respective computer.

The installer may fail for various reasons, e.g. because of mismatches in the user's system configuration. Problems may appear if the user has installed more than one FORTRAN compiler, and/or if the netCDF libraries have been generated with a different compiler than is used for compiling PALM. Furthermore, the automatic installer cannot be used on many larger computer systems where software (compilers, libraries) is managed via the module environment. In all these cases, the user has to setup the configuration file manually.

How to generate a configuration file manually

As a first step, copy the default template of the configuration file (which is part of the PALM download) to your working directory:

  cd $HOME/palm/current_version
  cp trunk/SCRIPTS/.palm.config.default .