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In computing, multitasking is the concurrent execution of multiple tasks (also known as processes) over a certain period of time. New tasks can interrupt already started ones before they finish, instead of waiting for them to end. As a result, a computer executes segments of multiple tasks in an interleaved manner, while the tasks share common processing resources such as central processing units (CPUs) and main memory. Multitasking automatically interrupts the running program, saving its state (partial results, memory contents and computer register contents) and loading the saved state of another program and transferring control to it. This "context switch" may be initiated at fixed time intervals (pre-emptive multitasking), or the running program may be coded to signal to the supervisory software when it can be interrupted (cooperative multitasking).
A performance prediction and collaborative optimization method and device based on an autonomous heterogeneous platform
This invention relates to the field of computer multitasking parallel computing technology, and in particular to a method and apparatus for performance prediction and collaborative optimization based on an autonomous heterogeneous platform. The method includes monitoring the resources of the running autonomous heterogeneous platform to obtain its real-time performance data, wherein computational inference tasks run on different computing units of the autonomous heterogeneous platform; fitting historical performance data within a preset time window to obtain performance peaks; predicting the performance of the real-time performance data to obtain predicted performance indicators; and reallocating the computational inference tasks to different computing units of the autonomous heterogeneous platform for execution based on the predicted performance indicators and the performance peaks. This invention can improve the resource utilization and execution efficiency of autonomous heterogeneous platforms under multitasking loads.
Owner:709TH RESEARCH INSTITUTE CHINA STATE SHIPBUILDING CORP LTD