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Packet schedulers are the key to guarantee quality of service in computer networks. The rate-controlled EDF schedulers embrace the good characteristics of output smoothness. But the methods used in the existing EDF schedulers to calculate eligible time are based on a real or virtual global system time, which is too complex to be implemented in high-speed networks. The paper presents a specific and...
In this paper, we study multicast scheduling in all-optical packet switches. We first propose a novel optical buffer called multicast-enabled Fiber-Delay-Lines (M-FDLs), which can provide flexible delay for copies of multicast packets using only a small number of FDL segments. We then present a Delay-Guaranteed Multicast Scheduling (DGMS) algorithm that considers the schedule of each arriving packet...
Shingled recording has recently emerged as one promising candidate to sustain the historical growth of magnetic recording storage areal density. However, since the convenient update-in-place feature is no longer available in shingled recording, many sectors must be read and written back in order to update one sector. This leads to a significant update-induced latency overhead and makes conventional...
GP-GPUs have been used as the platform for many applications due to their powerful computation ability and massively parallel features. In this paper, we first investigate the CSR sparse matrix format, the performance of existing optimized SpMV (Sparse matrix-vector multiplication) algorithms, and analyze the memory access patterns of the SpMV algorithms. Based on the analysis of the memory access...
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