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.
Visi 6C63 t 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_CFLAGSallows 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_CFLAGSallows 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" -
OWL_DISABLE_LAPACKE_LINKING_FLAG=1disables the-llapackeflag in the linking options. This is useful when you have lapacke installed on non-standard localtion.
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).