| Author(s): | Kuberka, T., Kugel, A., Maenner, R., Singpiel, H., Spurzem, R., Klessen, R. |
| Title: | AHA-GRAPE: Adaptive Hydrodynamic Architecture - GRAvity PipE |
| Source: | to appear in Proc. of The 1999 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA 99), Las Vegas, USA |
| Year: | 1999 |
| Abstract: | In astrophysics numerical star cluster simulations and hydrodynamical methods like SPH require computational performance in the petaflop range. The GRAPE family of ASIC-based accelerators improves the cost-performance ratio compared to general purpose parallel computers, however with limited flexibility. The AHA-GRAPE architecture adds a reconfigurable FPGA-processor to accelerate the SPH computation. The basic equations of the algorithm consist of three parts each scaling with the order of O(N), O(N*Nn), and O(N2) respectively, where N is in the range of 104 to 107 and Nn approximately 50. These equations can profitably be distributed across a host workstation, an FPGA processor, and a GRAPE subsystem. With the new ATLANTIS FPGA processor we expect a scalable SPH performance of 1.5 Gflops per board. The first prototype AHA-GRAPE system will be available in mid-2000. This 3-layered system will deliver an increase in performance by a factor of 10 as compared to a pure GRAPE solution. |
| Preprint issued: | May 1999 |
| Remarks: |
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