$ make
or
$ make BACKEND=multicore CC=clang
Because we want to benchmark the rendering time independently of the
BVH construction and scene creation, we don't use the normal futhark bench tool. Instead we have a C program, main.c that calls the
Futhark program as a library. Run make to build and then benchmark
with e.g.
$ ./main -n 1000 -m 1000 -s rgbbox -f rgbbox.ppm
This will also create an output image.
Use the environment variable FUTHARK_BACKEND to select a different
Futhark backend (requires a recompile).