Supported compilers for GEOS-Chem

On this page we provide information about the compilers that are supported in GEOS-Chem.

The GNU Fortran compiler

GNU Fortran is our recommended open-source compiler for GEOS-Chem.

GEOS-Chem v11-01 and newer versions are compatible with the GNU Fortran compiler, aka gfortran. This is a free and open-source compiler that comes pre-installed on many modern computer systems. As such, GNU Fortran allows GEOS-Chem to be highly portable across a wide variety of platforms, including cloud-computing platforms.

For more information, please follow these links:

• GNU Fortran compiler page on the GEOS-Chem wiki
• GNU Fortran Compiler versions that have been verified to build GEOS-Chem properly
• Environment settings for the GNU Fortran Compiler
• GEOS-Chem performance when built with the GNU Fortran Compiler
• Compilation options for GNU Fortran
• Known issues when compiling GEOS-Chem with GNU Fortran

--Bob Yantosca (talk) 14:32, 14 June 2019 (UTC)

The Intel Fortran compiler

Intel Fortran is our recommended proprietary compiler for GEOS-Chem.

Many users compile GEOS-Chem with the Intel Fortran compiler (aka ifort). In general, you will always obtain the best performance when compiling GEOS-Chem using Intel Fortran AND running GEOS-Chem on a system with Intel CPUs.

For more information, please follow these links:

• our Intel Fortran compiler page on the GEOS-Chem wiki.
• Intel Fortran Compiler versions tested with GEOS-Chem
• Environment_settings_for_Intel_Fortran|Environment settings for the Intel Fortran Compiler
• Performance when compiling GEOS-Chem with the Intel Fortran Compiler
• Intel Fortran Compiler options
• Known issues when compiling GEOS-Chem with the Intel Fortran Compiler

--Bob Yantosca (talk) 14:43, 14 June 2019 (UTC)