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Par4All is an automatic parallelizing and optimizing compiler (workbench) for C and Fortran sequential programs.

The purpose of this source-to-source compiler is to adapt existing applications to various hardware targets such as multicore systems, high performance computers and GPUs.

It creates new OpenMP, CUDA or OpenCL source codes and thus allows the original source codes of the application to remain mainly unchanged for well formed programs.

With Wild Cruncher from HPC Project it is also possible to compile and parallelize Scilab programs to speed up computations.