arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1801.01554cs.LGcs.DCcs.NE
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反向传播学习在SIMD并行机上的实现

An Implementation of Back-Propagation Learning on GF11, a Large SIMD Parallel Computer

Carnegie Mellon University(卡内基梅隆大学);IBM T.J. Watson Research Center(IBM T.J. 沃森研究中心)

Michael Witbrock, Marco Zagha

摘要:

当前的联结主义模拟需要巨大的计算资源。我们描述了一个神经网络模拟器的IBM GF11,一个实验的SIMD机器与566个处理器和峰值算术性能为11千兆次浮点运算。我们提出了我们的并行实现的反向传播学习算法,提高效率的技术,性能测量的NetTalk文本到语音的基准,和模拟器的性能模型。我们的模拟器目前以每秒9亿个连接的速度运行反向传播学习算法,其中每个"每秒连接"包括向前和向后传递。这个数字是在只有356个处理器工作的机器上获得的;所有566个处理器都在工作,我们的模拟将以每秒超过10亿个连接的速度运行。我们的结论是,GF11非常适合神经网络仿真,我们分析了我们使用的机器,以确定哪些功能是最重要的高性能。

英文摘要:

Current connectionist simulations require huge computational resources. We describe a neural network simulator for the IBM GF11, an experimental SIMD machine with 566 processors and a peak arithmetic performance of 11 Gigaflops. We present our parallel implementation of the backpropagation learning algorithm, techniques for increasing efficiency, performance measurements on the NetTalk text-to-speech benchmark, and a performance model for the simulator. Our simulator currently runs the back-propagation learning algorithm at 900 million connections per second, where each "connection per second" includes both a forward and backward pass. This figure was obtained on the machine when only 356 processors were working; with all 566 processors operational, our simulation will run at over one billion connections per second. We conclude that the GF11 is well-suited to neural network simulation, and we analyze our use of the machine to determine which features are the most important for high performance.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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