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The high amount of memory requests from massive threads may easily cause cache contention and cache-miss-related resource congestion on GPUs. This paper proposes a simple yet effective performance model to estimate the impact of cache contention and resource congestion as a function of the number of warps/thread blocks (TBs) to bypass the cache. Then we design a hardware-based dynamic warp/thread-block...
The high computational capability of graphics processing units (GPUs) is enabling and driving the scientific discovery process at large-scale. The world's second fastest supercomputer for open science, Titan, has more than 18,000 GPUs that computational scientists use to perform scientific simulations and data analysis. Understanding of GPU reliability characteristics, however, is still in its nascent...
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