BOLT is a derivative of the Intel OpenMP runtime (i.e., the LLVM OpenMP runtime). BOLT is distributed under a BSD-like license.


Current version

Older versions

Source Code

The source code repository of BOLT is on github:

To clone the repository:

  • Clone with HTTPS:
    git clone
  • Clone with SSH:
    git clone


BOLT uses Argobots as its underlying lightweight threading model. Instructions for downloading and installing Argobots can be found at