========== Compile

$ cd src $ make F90=

This will generate a binary "flac".

Supported compilers: gfortran -- GNU (default), v4.2 or later, otherwise openmp is disabled ifort -- Intel pgf90 -- PGI, the only compiler for openacc f90 -- Sun Studio (less tested)

The default is to build optimized binary with openmp. Several command line options can build other type of binaries.

debug=1 -- debugging binary (detecting various coding errors at runtime) omp=0 -- disable openmp acc=1 -- enable openacc on nvidia gpu coverage=1 -- code coverage analysis (only for gfortran) gprof=1 -- profiling

E.g. to make a debugging binary $ make debug=1

========== Run

To run the provided example input, execute following commands: $ cd geoflac/examples $ rm *.0 sys.msg # delete old output files $ export OMP_NUM_THREADS=<# of CPU cores> # you can skip this step if using ALL

available CPU cores

$ ../src/flac subduction.inp

To restart a model from previous output, execute following commands: $ mv _contents.save _contents.rs $ ../src/flac subduction.inp

The description of input parameters can be found in doc/ directory.

========== Plot

$ ../util/flac2vtk.py .

This will generate a series of VTK files (*.vts), which can be visualized by several programs, e.g. ParaView, or LLNL's VisIt.

by Eh Tan, Jun. 2020