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trait CostModel extends AnyRef

The cost model is behind a trait so that we can consider making this pluggable in the future so that users can override the cost model to suit specific use cases.

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CpuCostModel, GpuCostModel
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  1. abstract def getCost(plan: SparkPlanMeta[_]): Double

    Determine the CPU and GPU cost for an individual operator.

    Determine the CPU and GPU cost for an individual operator.

    plan

    Operator

    returns

    (cpuCost, gpuCost)

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