Owl is a dedicated system for scientific and engineering computing in the functional programming language OCaml.
This software is currently maintained by Komposio, a Helsinki-based software consulting company.
Visit the project website at ocaml.xyz
You can enable optional features by setting the following variables to 1
before compilation:
-
OWL_ENABLE_EXPMODE=1
: turn on experiment features like-flto
-
OWL_ENABLE_DEVMODE=1
: turn on all the warnings in development -
OWL_ENABLE_OPENMP=1
: turn on OpenMP support in core module and the automatic parameter tuning (AEOS) -
OWL_CFLAGS
allows to change the default flags passed to the C targets, it defaults toOWL_CFLAGS="-g -O3 -Ofast -march=native -mfpmath=sse -funroll-loops -ffast-math -DSFMT_MEXP=19937 -msse2 -fno-strict-aliasing -Wno-tautological-constant-out-of-range-compare"`
-
OWL_AEOS_CFLAGS
allows to change the default flags passed to the C targets when compiling AEOS. It defaults toOWL_AEOS_CFLAGS="-g -O3 -Ofast -march=native -funroll-loops -ffast-math -DSFMT_MEXP=19937 -fno-strict-aliasing"
If you are not using opam
, you should run make clean
before recompiling
the library after having changed any of those environment variables.
For examples of use of this feature, you can refer to the Docker.ubuntu
and Docker.ubuntu.arm
docker files, or to the snippet in
owlbarn#394 (comment)
(which also shows how to use it within esy
).