Fortran preprocessor designed for multithreading and GPU offloading through OpenMP

Features:

• Automatic privatization of modified global variables in multithreaded code
• Fortran Array operation unrolling to DO-loops with automatic declaratives to spread work either along CPU or GPU threads
• Automatic declarations for global variables needed in target regions
• Function inlining which helps OpenMP offloading

Parameters:

• -f --function Which function to parse
• -F --file In which file the function exists
• -o --offload --no-offload Whether to offload the given function
• -c --communication --no-communication Whether to warn about communication calls inside the given subroutine
• -d --directory From which directory to look for file
• -M --Makefile. Pencil Code specific. Filename to Makefile.local to know which modules are included (might change in the future)

Example call to modify a given function to be suittable for offloading (Work in progress)

• python parse.py -f example_function -F ./dir/file_where_function_is -o

Example call to make needed global variables threadprivate:

• python parse.py -f example_function -F ./dir/file_where_function_is

OpenMP declarations are in files {original_file_path}_omp_incl.h