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The architecture of the Microsoft Catapult II cloud places the accelerator (FPGA) as a bump-in-the-wire on the way to the network and thus promises a dramatic reduction in latency as layers of hardware and software are avoided. We demonstrate this capability with an implementation of the 3D FFT. Next we examine phased application elasticity, i.e., the use of a reduced set of nodes for some phases...
The 3D FFT is critical in many physical simulations and image processing applications. On FPGAs, however, the 3D FFT was thought to be inefficient relative to other methods such as convolution-based implementations of multigrid. We find the opposite: a simple design, operating at a conservative frequency, takes 4Μs for 163, 21Μs for 323, and 215Μs for 643...
The 3D FFT is critical in electrostatics computations such as those used in Molecular Dynamics simulations. On FPGAs, however, the 3D FFT was thought to be inefficient relative to other methods such as convolution-based implementations of multigrid. We find the opposite: a simple design using less than half the chip resources, and operating at a very conservative frequency, takes less than 50us for...
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