The construction and validation of a multi-purpose 3D code for computational general relativistic astrophysics that makes efficient use of massively parallel computers are major challenges in computational physics,and are important to high energy astronomy and gravitational wave astronomy. We took on this challenge starting fall of 1996 with the support of the NASA Round-2 Grand Challenge Program.
Clifford Will and his students and post-docs in the Washington University Gravity Group (WUGRAV) focus on the observable or testable consequences of the General Theory of Relativity. The two principal areas of research interest are gravitational radiation and theoretical analyses of experimental tests of relativity.
GRAstro and some other codes are still under development. They are available through online checkout.
You must have sufficient HTML permissions to checkout them. So you will have to get a WUGRAV online cvs account.