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34results about How to "Guaranteed predictive effect" patented technology

Programmable backward jump instruction prediction mechanism

A programmable backward jump instruction prediction mechanism includes a backward branch prediction queues (BBQ) for assisting an embedded processor to overcome an inevitable control hazard caused in a pipeline execution for a conditional branch instruction. A large percentage of nested loops exists in an application program executed by the embedded processor, and thus when the backward branch encounters a nested loop, the behavior of branch of a nested loop is similar to a queue that will automatically restore its original status; the whole nested loop iterates at a center and repeats the execution of innermost loops (Queue Front) and leaves the prediction miss to the next backward branch (an outer loop, Queue Next); once if an outer loop hits a branchy, the inner loop will repeat the branch ( and returns to the innermost loop Queue Front). Since the program counter (PC) and the branch address of the queue can be used for determining whether or not the program execution is still in a nested loop or whether or not a jump is from a backward branch by the target address of the branch instruction. It is only necessary to predict an execution and compare a specific branch address in the queue for each time, and thus the queue structure needs not to store too many instructions or quickly compare a large number of data by the associative memory technique. The hardware is very simple, but the effect is excellent. According to the simulation analysis of the application program, it is discovered that the average prediction accuracy is up to 82% and some applications may even have an accuracy of 99%. The hardware mechansim of the invention features a low cost and a low level of complexity, and thus fully satifying the requirements for low cost, low power consumption, and high performance / cost ratio of an embedded processor.
Owner:FENG CHIA UNIVERSITY

Load prediction method and device, computer readable storage medium and electronic equipment

The invention discloses a load prediction method and device, a computer readable storage medium and electronic equipment, and the method comprises the steps: obtaining at least one sample prediction day and at least one sample historical data set corresponding to the prediction day, and enabling the at least one sample historical data set to be in one-to-one correspondence with the at least one sample prediction day; according to a load prediction method, respectively carrying out load prediction on the at least one sample historical data set, and determining at least one load prediction data set corresponding to the load prediction method; determining evaluation data corresponding to the load prediction method according to the at least one sample historical data set and the at least one load prediction data set corresponding to the load prediction method; and determining a target load prediction method corresponding to the prediction day according to the evaluation data corresponding to each load prediction method, the target load prediction method being used for carrying out load prediction on the prediction day. By means of the technical scheme, different load prediction methods can be evaluated, and the load prediction method with the good load prediction effect is obtained.
Owner:XINAO SHUNENG TECH CO LTD
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