Function evaluation methods usually include function cost method and function index method.
功能评价方法常采用功能成本法和功能指数法。
A functional index incurs the additional cost of function execution.
函数索引还会产生额外的函数执行开销。
The ideal threshold for choosing between sequential and parallel execution is a function of the cost of coordinating the parallel tasks.
用于选择顺序和并行执行方法的理想阙值是协调并行任务的成本。
应用推荐