HPC on FPGA clouds: 3D FFTs and implications for molecular dynamics
HPC on FPGA clouds: 3D FFTs and implications for molecular dynamics
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FPGA 云上的 HPC：3D FFT 及其对分子动力学的影响
DOI：
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发表时间：
2017
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通讯作者：
M. Herbordt
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作者：
Jiayi Sheng;Chen Yang;A. Sanaullah;Michael Papamichael;Adrian M. Caulfield;M. Herbordt
Microsoft II Cloud的架构将加速器（FPGA）作为通往网络的颠簸的bump，因此，随着硬件和软件的层次，我们证明了延迟的延迟。在实现3D FFT的情况下，我们检查了分阶段的应用弹性，即使用减少的节点作为HPC应用程序的某些阶段。分子动力学，这种收缩是有益的，而绩效提高了13％–14％。 。
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 of an HPC application. We find that, for the FFT phase within Molecular Dynamics, such contraction is beneficial with a 13%–14% performance improvement. Turning to MD, we show how this elasticity can be integrated into the existing data transformation to hide its communication overhead and increase the performance benefit to 16%–29%.