With tail2Futhark it is possible to compile APL programs - through apltail - to Futhark and thereby target GPGPU architectures supported by the Futhark project.
Use Stack to build the tail2futhark compiler.
To get all the prerequisites for building (including, if necessary, the appropriate version of the Haskell compiler), run:
stack setup
Notice that this command will not install anything system-wide and will have no
effect outside the tail2futhark build directory. Now, run the
following command to build the tail2futhark compiler, including all
dependencies:
stack build
You can install tail2futhark to your $HOME/.local/bin directory
by running:
stack install
Make sure this directory is in your $PATH. Alternatively, just copy
the binary to where you need it.
To use tail2futhark and to test it, you need a working version of
the APLtail compiler, which
allows for compiling APL programs into TAIL programs, suitable for
input to tail2futhark.
Notice: For installation instructions, you may consult the
.travis.yml file, which documents the APLtail installation procedure
for Linux boxes.
There are two ways to invoke tail2futhark, corresponding to whether
you want to compile a program with a main function, or a library
with multiple entry points. In the former case, run
tail2futhark prog.tail -o prog.fut
which results in a Futhark program defining a main function.
In the latter case, run
tail2futhark --library prog1.tail ... progN.tail -o prog.fut
This command results in a Futhark program with one entry point for every
.tail file. The name of each entry point will match the name of the
file, with .tail stripped off.
While stricly not the domain of tail2futhark, this is a handy
command line for translating an APL file to a TAIL file suitable for
consumption by tail2futhark:
aplt -p_types -s_tail -c -o foo.tail ${TAIL_ROOT}/lib/prelude.apl foo.apl
Here, $TAIL_ROOT must point to a checkout of the TAIL source
repository.
To test the compiler, run the command:
make test
Yet an alternative is to run
(cd tests/basic_tests; make testopencl)
See the Prerequisites section for information about the required
apltail compiler.