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Sparse Data Acquisition on Emerging Memory Architectures
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DOI：10.1109/ACCESS.2018.2886931.png)
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Abstract
En 中文
Emerging memory devices, such as resistive crossbars, have the capacity to store large amounts of data in a single array. Acquiring the data stored in large-capacity crossbars in a sequential fashion can become a bottleneck. We present practical methods, based on sparse sampling, to quickly acquire sparse data stored on emerging memory devices that support the basic summation kernel, reducing the acquisition time from linear to sub-linear. The experimental results show that at least an order of magnitude improvement in acquisition time can be achieved when the data are sparse. In addition, we show that the energy cost associated with our approach is competitive to that of the sequential method.
Keywords:
Memory acquisition
crossbar
sparse sampling
sparsity estimation
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