CUSL is an experimental CUDA port of selected GNU Scientific Library (GSL) routines. It is a small, header-oriented project focused on CUDA device code, not a complete GSL replacement.

Full documentation is available at:

• https://rsnemmen.github.io/cusl/

Run from tests/:

sh bessel.sh
sh ran_dir_3d.sh

These scripts compile and run small comparison programs against GSL and CUDA reference implementations.

The documentation covers:

• available routines and GSL-to-CUSL mapping
• dependencies and build commands
• validation scripts and known test gaps
• porting notes for future routines

To preview the documentation locally:

python -m pip install -r requirements-docs.txt
mkdocs serve

• src/ contains CUDA headers for selected Bessel, Gamma, Psi, polynomial, Chebyshev, chi-square, and random-direction routines.
• tests/ contains standalone validation programs and scripts.
• GSL-style result/status error handling is not fully implemented.