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Cache compression seeks the benefits of a larger cache with the area and power of a smaller cache. Ideally, a compressed cache increases effective capacity by tightly compacting compressed blocks, has low tag and metadata overheads, and allows fast lookups. Previous compressed cache designs, however, fail to achieve all these goals. In this paper, we propose the Skewed Compressed Cache (SCC), a new...
In general-purpose graphics processing unit (GPGPU) computing, data is processed by concurrent threads executing the same function. This model, dubbed single-instruction/multiple-thread (SIMT), requires programmers to coordinate the synchronous execution of similar operations across thousands of data elements. To alleviate this programmer burden, Gaster and Howes outlined the channel abstraction,...
Efficient memory sharing between CPU and GPU threads can greatly expand the effective set of GPGPU workloads. For increased programmability, this memory should be uniformly virtualized, necessitating compatible address translation support for GPU memory references. However, even a modest GPU might need 100s of translations per cycle (6 CUs * 64 lanes/CU) with memory access patterns designed for throughput...
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