A Fast Double Precision CFD Code using CUDA
نویسندگان
چکیده
We describe a second-order double precision finite volume Boussinesq code implemented using the CUDA platform. We perform detailed validation of the code on a variety of Rayleigh-Benard convection problems and show second order convergence. We obtain matching results with a Fortran code running on a high-end eight-core CPU. The CUDA-accelerated code achieves approximately an eight-time speedup for versus the Fortran code on identical problems. As a result, we are able to run a simulation with a grid of size 384 2 192 at 1.6 seconds per time step on a machine with a single GPU.
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