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Simulations, Data Analysis and Algorithms

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Figure 5 | Computational Astrophysics and Cosmology

Figure 5

From: Sapporo2: a versatile direct N-body library

Figure 5

Multi-GPU speed-up over using one GPU. For each configuration the total wall-clock time is used to compute the speed-up (y-axis) for a given N (x-axis). The wall-clock time includes the time required for the reduction steps and data transfers. Timings performed on K20m GPUs using Sapporo2 and CUDA 5.5.

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