KSLCore/ksl.simopt.evaluator/Evaluator

Evaluator

class Evaluator @JvmOverloads constructor(val problemDefinition: ProblemDefinition, simulator: SimulationOracleIfc, val cache: SolutionCacheIfc? = null) : EvaluatorIfc(source)

An evaluator should communicate with the simulation oracle to determine solutions for requests for evaluation from solvers.

Parameters

problemDefinition

the problem that the evaluation of responses will be used on

simulator

the provider of responses from the simulation oracle

cache

a cache that can be used instead of a costly simulation evaluation

Constructors

Evaluator

@JvmOverloads

constructor(problemDefinition: ProblemDefinition, simulator: SimulationOracleIfc, cache: SolutionCacheIfc? = null)

Types

Companion

object Companion

Properties

cache

open override val cache: SolutionCacheIfc?

problemDefinition

val problemDefinition: ProblemDefinition

totalCachedReplications

open override var totalCachedReplications: Int

The total number of replications successfully bypassed/satisfied by the cache.

totalDesignPointsEvaluated

open override var totalDesignPointsEvaluated: Int

The total number of unique design points (ModelInputs) requested for evaluation across all evaluator calls.

totalEvaluatorCalls

open override var totalEvaluatorCalls: Int

The total number of times the evaluate() method has been invoked. This essentially tracks the number of "batches" or "generations" processed.

totalOracleReplications

open override var totalOracleReplications: Int

The total number of replications actually executed by the simulation oracle.

Functions

evaluate

open override fun evaluate(evaluationRequest: EvaluationRequest): Map<ModelInputs, Solution>

Processes the supplied requests for solutions. The solutions may come from an associated solution cache (if present or allowed) or via evaluations by the simulation oracle. The CRN option is applied to the set of requests and does not permit cached solutions, even if caching is permitted.

resetEvaluationCounts

fun resetEvaluationCounts()

The evaluator collects some basic counts (statistics) on its evaluations. This function resets all counters to 0, perhaps in preparation for another evaluation run.

toString

open override fun toString(): String