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Most GPU-based graph systems cannot handle large-scale graphs that do not fit in the GPU memory. The ever-increasing graph size demands a scale-up graph system, which can run on a single GPU with optimized memory access efficiency and well-controlled data transfer overhead. However, existing systems either incur redundant data transfers or fail to use shared memory. In this paper we present Graphie,...
GPU is often equipped with complex memory systems, including globalmemory, texture memory, shared memory, constant memory, and variouslevels of cache. Where to place the data is important for theperformance of a GPU program. However, the decision is difficult for aprogrammer to make because of architecture complexity and thesensitivity of suitable data placements to input and architecturechanges.This...
Many dynamic simulation programs contain complex, irregular memory reference patterns, and require runtime optimizations to enhance data locality. Current approaches periodically stop the execution of an application to reorder the computation or data based on the current program state to improve the data locality for the next period of execution. In this work, we examine the implications that modern...
Orthogonal frequency division multiple (OFDM) system with two-level spreading is an effective approach to suppress interference in wireless communication. However, in this system, the orthogonality of its spreading code can be destroyed by multipath fading. In this paper, we propose a novel resource allocation scheme that joints conventional two-level spreading OFDM and smart antenna so as to use...
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