NPAC Activity in Colliding Black Hole Grand Challenge Collaboration
May 5 and 6, Pittsburgh
Geoffrey Fox
This talk summarizes the proposed NPAC role in the NSF sponsored grand
challenge in numerical relativity (colliding black holes in particular).
This grand challenge has several interesting features. The calculations
will allow one to interpret observations from the new generation of
gravitational wave detectors -- in particular the large LIGO system being
built by Caltech and MIT with NSF funding. Black hole collisions are
expected to be a particularly large and distinctive source of
gravitational waves. These waves are an unambiguous prediction of
Einstein's equations but have never been detected directly upto now. The
simulations involve solutions of sets of partial computers are both
necessary and sufficient for reliable numerical results. The grand
challenge collaboration involves eight university groups led by Professor
Richard Matzner from Texas. The computer science work is responsibility
of Texas(Browne), Syracuse(NPAC) and Illinois (Saylor,Saied). There are
several interesting similarities and differences between the computer
science needs for numerical black hole physics and computational fluid
dynamics. Some important HPCC technologies are High Performance Fortran,
MPI, structured Adaptive grid generation, high level domain specific
interfaces and computational toolkits. NPAC's role also includes
preparation of educational material which will be first used in
Computational Science class CPS713 in fall 1994.
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