Futhark is a purely functional data-parallel programming language. Its optimising compiler is able to compile it to typically very performant GPU code. The language and compiler is developed as part of the HIPERFIT project at DIKU. The project is still research-quality, and the focus has mostly been on ensuring high runtime-performance, so the source language still lacks many niceties for manual programming - it is fairly usable as a target for high-level code generation, however.

For more information, see the website.

The incomplete documentation is here.

Please see our installation instructions.

To compile a Futhark program to sequential C:

futhark-c prog.fut -o prog

Or maybe OpenCL:

futhark-opencl prog.fut -o prog

And then run it:

./prog < prog.input

To interpret a Futhark program:

futharki prog.fut < prog.input

We try to make use of Github issues for organising our work. Issues tagged with newbie-friendly do not require deep knowledge of the code base.

Run the data/runtests.sh script to check how well we're doing. Use data/runtests.sh -t if you're in a hurry and only want the test suite to do type checking.