-import { cpus } from 'node:os'
import type { IWorker } from '../worker'
import type { IPool } from '../pool'
import { DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS } from '../../utils'
import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy'
import type {
IWorkerChoiceStrategy,
- RequiredStatistics,
WorkerChoiceStrategyOptions
} from './selection-strategies-types'
>
extends AbstractWorkerChoiceStrategy<Worker, Data, Response>
implements IWorkerChoiceStrategy {
- /** @inheritDoc */
- public readonly requiredStatistics: RequiredStatistics = {
- runTime: true,
- avgRunTime: true,
- medRunTime: false
- }
-
/**
* Worker node id where the current task will be submitted.
*/
opts: WorkerChoiceStrategyOptions = DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
) {
super(pool, opts)
- this.checkOptions(this.opts)
+ this.setTaskStatisticsRequirements(this.opts)
this.defaultWorkerWeight = this.computeDefaultWorkerWeight()
this.roundWeights = this.getRoundWeights()
}
let roundId: number | undefined
let workerNodeId: number | undefined
for (
- let round = this.currentRoundId;
- round < this.roundWeights.length;
- round++
+ let roundIndex = this.currentRoundId;
+ roundIndex < this.roundWeights.length;
+ roundIndex++
) {
for (
let workerNodeKey = this.currentWorkerNodeId;
) {
const workerWeight =
this.opts.weights?.[workerNodeKey] ?? this.defaultWorkerWeight
- if (workerWeight >= this.roundWeights[round]) {
- roundId = round
+ if (workerWeight >= this.roundWeights[roundIndex]) {
+ roundId = roundIndex
workerNodeId = workerNodeKey
break
}
this.roundWeights = this.getRoundWeights()
}
- private computeDefaultWorkerWeight (): number {
- let cpusCycleTimeWeight = 0
- for (const cpu of cpus()) {
- // CPU estimated cycle time
- const numberOfDigits = cpu.speed.toString().length - 1
- const cpuCycleTime = 1 / (cpu.speed / Math.pow(10, numberOfDigits))
- cpusCycleTimeWeight += cpuCycleTime * Math.pow(10, numberOfDigits)
- }
- return Math.round(cpusCycleTimeWeight / cpus().length)
- }
-
private getRoundWeights (): number[] {
if (this.opts.weights == null) {
return [this.defaultWorkerWeight]