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Branch predictors are important components that affect the performance of modern microprocessors. Many of the existing prediction simulation platforms either only consider accuracy computed with coarse-grained updating model, or just are the low speed full system simulators. In this paper, We present SimpleBP, a lightweight prediction simulator based on trace driven. It leverages the SystemC language...
Besides the accuracy of prediction, chip area occupancy and power consumption also should be taken into account in the design of branch predictors. Many of the previous prediction simulation platforms have either only considered accuracy computed with coarse-grained updating model, or just been the low-speed full system simulators. In this paper, We presents SimpleBP, a lightweight prediction simulator...
Thread migration is ubiquitous in multi-core architectures. When a thread migrates to a new core, the branch information of the branch predictor on new core is absent, which will lead to the predictor won't work as intended until the warm-up finish. In this poster, we point out that, when a thread migrates to a new core, the warm-up time of branch predictors can be reduced by migrating branch history...
When designing the branch predictors in processors, designers not only need to consider the prediction accuracy, but also should pay attention to the die-area occupied by the predictor, power consumption and other issues. Previous simulations of branch predictors have either only considered accuracy, or used low-speed full system simulators. We presents BPSim, a fast simulation environment for branch...
We propose and experimentally demonstrate a novel colorless full-duplex passive optical network architecture with Rayleigh backscattering optical beat interference (OBI) noise mitigation by using orthogonal codes. A pair of orthogonal codes are generated and transmitted from optical line terminal (OLT) to optical network unit (ONU) with the same wavelength, in which, one for downstream signal coding,...
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