ml.shifu.guagua.master

Class LocalMasterCoordinator<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>

java.lang.Object

ml.shifu.guagua.master.BasicMasterInterceptor<MASTER_RESULT,WORKER_RESULT>

ml.shifu.guagua.master.LocalMasterCoordinator<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:

MasterInterceptor<MASTER_RESULT,WORKER_RESULT>

public class LocalMasterCoordinator<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>
extends BasicMasterInterceptor<MASTER_RESULT,WORKER_RESULT>

LocalMasterCoordinator is local coordinator implementation in one jvm instance.

LocalMasterCoordinator 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
LocalMasterCoordinator()

Method Summary

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

postApplication

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalMasterCoordinator

public LocalMasterCoordinator()

Method Detail

preApplication

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

Description copied from interface: MasterInterceptor

The hook point before any computation logic.

Specified by:

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

Overrides:

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

Parameters:

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

preIteration

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

Description copied from interface: MasterInterceptor

The hook point before computation of each iteration.

Specified by:

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

Overrides:

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

Parameters:

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

postIteration

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

Description copied from interface: MasterInterceptor

The hook point after computation of each iteration.

Specified by:

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

Overrides:

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

Parameters:

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

setCoordinator

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