Class CMD_optimo

java.lang.Object

io.nosqlbench.nb.api.components.core.NBBaseComponentMetrics

io.nosqlbench.nb.api.components.core.NBBaseComponent

io.nosqlbench.engine.core.lifecycle.scenario.execution.NBInvokableCommand

io.nosqlbench.engine.core.lifecycle.scenario.execution.NBBaseCommand

io.nosqlbench.scenarios.simframe.optimizers.optimo.CMD_optimo

All Implemented Interfaces:

NBComponent, NBComponentAdvisors, NBComponentEvents, NBComponentMetrics, NBComponentProps, NBComponentServices, NBComponentTimeline, NBProviderSearch, NBTokenWords, NBLabeledElement, AutoCloseable, BiFunction<NBBufferedContainer,NBCommandParams,Object>

public class CMD_optimo
extends NBBaseCommand

If the initial trust radius is not large enough with respect to the stopping trust radius, then the search will stop ascending the approximate manifold too early. This seems to be because the trust radius is forced to diminish by some limiting condition.

Explanation of parameters:

1. numberOfInterpolationPoints - limited by the dimensionality of the parameter vector. M.J.D. Powell recommends this be 2n+1, where n is the number of parameters in the search vector.
2. initialTrustRegionRadius - Initial trust region radius, affects how well aggressively BOBYQA explores the parameter space. Too small and it may not explore enough to find a gradient if it starts in a flatter part of the manifold. Too large, and the feedback loop seems to run dry quickly due to lack of detail.
3. stoppingTrustRegionRadius - Stopping trust region radius. This is the space which contains interpolation points, and can be trusted to contain a reasonably representative character of the overall manifold

Nested Class Summary

Nested classes/interfaces inherited from interface io.nosqlbench.nb.api.labels.NBLabeledElement

NBLabeledElement.BasicLabeledElement

Field Summary

Fields inherited from class io.nosqlbench.nb.api.components.core.NBBaseComponent

bufferOrphanedMetrics, closed_ns, error, errored_ns, labels, metricsBuffer, parent, started_epoch_ms, started_ns, state, teardown_ns

Fields inherited from interface io.nosqlbench.nb.api.components.core.NBComponent

EMPTY_COMPONENT

Fields inherited from interface io.nosqlbench.nb.api.components.core.NBComponentProps

HDRDIGITS, SUMMARY

Fields inherited from interface io.nosqlbench.nb.api.labels.NBLabeledElement

EMPTY

Constructor Summary

Constructors

Constructor	Description
CMD_optimo(NBBufferedContainer parentComponent, String phaseName, String targetScenario)

Method Summary

Modifier and Type	Method	Description
Object	invoke(NBCommandParams params, PrintWriter stdout, PrintWriter stderr, Reader stdin, ContainerActivitiesController controller)

Methods inherited from class io.nosqlbench.engine.core.lifecycle.scenario.execution.NBBaseCommand

apply, getScenarioName, getTargetScenario, toString

Methods inherited from class io.nosqlbench.engine.core.lifecycle.scenario.execution.NBInvokableCommand

invokeSafe

Methods inherited from class io.nosqlbench.nb.api.components.core.NBBaseComponent

addAdvisor, addMetricsCloseable, attachChild, beforeDetach, close, create, detachChild, find, findParentService, getAdvisors, getChildren, getComponentOnlyLabels, getComponentProp, getComponentState, getLabels, getNanosSinceStart, getParent, getTokens, nanosof_close, nanosof_error, nanosof_start, nanosof_teardown, onError, onEvent, reportExecutionMetric, setComponentProp, started_epoch_ms, teardown

Methods inherited from class io.nosqlbench.nb.api.components.core.NBBaseComponentMetrics

addComponentMetric, addListener, findComponentMetrics, findComponentMetrics, getComponentMetric, getComponentMetrics, removeListener

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.function.BiFunction

andThen

Methods inherited from interface io.nosqlbench.nb.api.components.core.NBComponentAdvisors

getAdvisorResults

Methods inherited from interface io.nosqlbench.nb.api.components.core.NBComponentMetrics

addComponentMetric, findComponentMetrics, findComponentMetrics, findOneComponentMetric, findOneComponentMetric, getComponentMetric, getComponentMetrics

Methods inherited from interface io.nosqlbench.nb.api.labels.NBLabeledElement

description

Constructor Details

CMD_optimo

public CMD_optimo(NBBufferedContainer parentComponent,
 String phaseName,
 String targetScenario)

Method Details

invoke

public Object invoke(NBCommandParams params,
 PrintWriter stdout,
 PrintWriter stderr,
 Reader stdin,
 ContainerActivitiesController controller)

Specified by:

invoke in class NBBaseCommand