#### Solving Einstein's Equations on Supercomputers: Colliding Black Holes,
Neutron Stars, and Gravitational Waves

Ed Seidel, AEI, Potsdam

Increases in networking and computing technology are making fully
nonlinear, 3D solutions to Einstein's equations of general relativity
possible for the first time since they were written down. I will describe
recent advances in numerical approaches to solving these equations, with
simulations of black hole collisions, neutron star collisions, and
nonlinear gravitational waves. I will also discuss metacomputing
approaches to harnessing the largest available computing power, involving
networked supercomnputers, to solve problems like these that are still too
large for any single supercomputer. Videos of simulations will be shown.