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The distinctive simplicity of the proposed RAM cell architecture suggests reduced footprint.
A hybrid RAM/linear architecture is found to approach 150 Mbps throughput with implementational advantages over both RAM and linear feedback filters.
Open accessProceedings ArticleDOI
15 Jun 2009
512 Citations
Importantly, we show that the optimal power allocation can significantly improve server farm performance, by a factor of typically 1.4 and as much as a factor of 5 in some cases.
These results are promising for developing a 1-Mbit/cm/sup 2/ density Josephson RAM.
First, as demand on storage capacity grows much faster than that on CPU power, existing server configurations can lead to CPU under-utilization and inadequate storage.
By providing a better understanding of the limits of current RAM designs, this report supports the decision for a particular RAM in an individual application.
In virtualization scenarios (cloud computing, server consolidation), however, static peak provisioning of RAM to applications dramatically reduces the efficiency and cost-saving benefits of virtualization.

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The relationship between memory bandwidth and the efficiency of data processing in modern computing systems is critically interdependent, as highlighted by a body of research. Modern computing systems, designed predominantly to move data towards computation, face significant performance, scalability, and energy bottlenecks due to this architecture. These challenges are exacerbated by the increasing data-intensiveness of applications, where data access from memory emerges as a key bottleneck because memory bandwidth and energy do not scale well with demand. The dichotomy between computation and data storage/movement, where a substantial portion of system energy is consumed and performance is lost in moving data, underscores the inefficiency of traditional computing paradigms. To address these inefficiencies, research has explored processing-in-memory (PIM) technologies, which aim to reduce or eliminate data movement by placing computation mechanisms closer to or inside memory storage. This approach leverages the analog operational properties of DRAM and 3D-stacked memory technology to perform massively parallel operations in memory, thereby potentially alleviating the memory bandwidth bottleneck. Furthermore, the importance of memory bandwidth is not limited to traditional computing systems but extends to specialized computing platforms like FPGAs. Efficient use of memory bandwidth is essential for fully utilizing the processing capabilities of these platforms, as demonstrated by FPGA-based implementations of two-dimensional fast Fourier transform (2D-FFT), which address the memory bandwidth bottleneck through algorithm and data path design. In addition, strategies for increasing global cache reuse and optimizing data access patterns have been proposed to mitigate bandwidth limitations and improve data processing efficiency. These strategies include fusing computations on the same data and grouping data used by the same computation to enable contiguous memory access. In summary, the relationship between memory bandwidth and data processing efficiency is a central concern in modern computing, driving innovations in memory system architecture, algorithm design, and processing paradigms to overcome inherent limitations.
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