ml.shifu.guagua.worker

Class LocalWorkerCoordinator<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>

java.lang.Object

ml.shifu.guagua.worker.BasicWorkerInterceptor<MASTER_RESULT,WORKER_RESULT>

ml.shifu.guagua.worker.LocalWorkerCoordinator<MASTER_RESULT,WORKER_RESULT>

Type Parameters:

MASTER_RESULT - master result for computation in each iteration.

WORKER_RESULT - worker result for computation in each iteration.

All Implemented Interfaces:

WorkerInterceptor<MASTER_RESULT,WORKER_RESULT>

public class LocalWorkerCoordinator<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>
extends BasicWorkerInterceptor<MASTER_RESULT,WORKER_RESULT>

LocalWorkerCoordinator is local coordinator implementation in one jvm instance.

LocalWorkerCoordinator is a proxy and coordinator has the real logic to coordinate master and workers. coordinator should be set by using the same instance with InternalWorkerCoordinator.

Constructor Summary

Constructors

Constructor and Description
LocalWorkerCoordinator()

Method Summary

Modifier and Type	Method and Description
void	postIteration(WorkerContext<MASTER_RESULT,WORKER_RESULT> context) The hook point after computation of each iteration.
void	preApplication(WorkerContext<MASTER_RESULT,WORKER_RESULT> context) The hook point before any computation logic.
void	preIteration(WorkerContext<MASTER_RESULT,WORKER_RESULT> context) The hook point before computation of each iteration.
void	setCoordinator(InMemoryCoordinator<MASTER_RESULT,WORKER_RESULT> coordinator)

Methods inherited from class ml.shifu.guagua.worker.BasicWorkerInterceptor

postApplication

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalWorkerCoordinator

public LocalWorkerCoordinator()

Method Detail

preApplication

public void preApplication(WorkerContext<MASTER_RESULT,WORKER_RESULT> context)

Description copied from interface: WorkerInterceptor

The hook point before any computation logic.

Specified by:

preApplication in interface WorkerInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>

Overrides:

preApplication in class BasicWorkerInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>

Parameters:

context - the worker context instance which includes master result and other useful parameters.

preIteration

public void preIteration(WorkerContext<MASTER_RESULT,WORKER_RESULT> context)

Description copied from interface: WorkerInterceptor

The hook point before computation of each iteration.

Specified by:

preIteration in interface WorkerInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>

Overrides:

preIteration in class BasicWorkerInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>

Parameters:

context - the worker context instance which includes master result and other useful parameters.

postIteration

public void postIteration(WorkerContext<MASTER_RESULT,WORKER_RESULT> context)

Description copied from interface: WorkerInterceptor

The hook point after computation of each iteration.

Specified by:

postIteration in interface WorkerInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>

Overrides:

postIteration in class BasicWorkerInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>

Parameters:

context - the worker context instance which includes master result and other useful parameters.

setCoordinator

public void setCoordinator(InMemoryCoordinator<MASTER_RESULT,WORKER_RESULT> coordinator)