CostEstimator::ICDecoderEstimatorPlugin Class Reference

#include <ICDecoderEstimatorPlugin.hh>

Inheritance diagram for CostEstimator::ICDecoderEstimatorPlugin:

Collaboration diagram for CostEstimator::ICDecoderEstimatorPlugin:

Public Member Functions
	ICDecoderEstimatorPlugin (const std::string &name)
virtual	~ICDecoderEstimatorPlugin ()
virtual bool	estimateICDelayOfPath (HDB::HDBRegistry &hdbRegistry, const TransportPath &path, const IDF::MachineImplementation &machineImplementation, const IDF::SocketImplementationLocation &sourceSocketImplementation, const IDF::BusImplementationLocation &busImplementation, const IDF::SocketImplementationLocation &destinationSocketImplementation, DelayInNanoSeconds &delay)
virtual bool	estimateICArea (HDB::HDBRegistry &hdbRegistry, const TTAMachine::Machine &machine, const IDF::MachineImplementation &machineImplementation, AreaInGates &area)
virtual bool	estimateICEnergy (HDB::HDBRegistry &hdbRegistry, const TTAMachine::Machine &machine, const IDF::MachineImplementation &machineImplementation, const TTAProgram::Program &program, const ExecutionTrace &traceDB, EnergyInMilliJoules &energy)
virtual TTAMachine::ControlUnit *	generateControlUnit ()
Public Member Functions inherited from CostEstimator::CostEstimationPlugin
	CostEstimationPlugin (const std::string &name)
virtual	~CostEstimationPlugin ()
virtual std::string	name () const
virtual std::string	description () const

Additional Inherited Members
Protected Attributes inherited from CostEstimator::CostEstimationPlugin
std::string	name_
	the name of the plugin class in the HDB; used to identify cost data More...

Detailed Description

Base class for plugins that are able to estimate costs of a IC and decoder combination.

Definition at line 64 of file ICDecoderEstimatorPlugin.hh.

Constructor & Destructor Documentation

ICDecoderEstimatorPlugin()

CostEstimator::ICDecoderEstimatorPlugin::ICDecoderEstimatorPlugin

(

const std::string &

name

)

Constructor.

Parameters

name	The name of the cost estimation plugin in the HDB.
dataSource	The HDB that stores the cost estimation data of the plugin. This reference can also be used to add new data, in case required by the algorithm.

Definition at line 49 of file ICDecoderEstimatorPlugin.cc.

                           :
    CostEstimationPlugin(name) {
}

~ICDecoderEstimatorPlugin()

CostEstimator::ICDecoderEstimatorPlugin::~ICDecoderEstimatorPlugin ( )

virtual

Destructor.

Definition at line 57 of file ICDecoderEstimatorPlugin.cc.

                                                    {
}

Member Function Documentation

estimateICArea()

bool CostEstimator::ICDecoderEstimatorPlugin::estimateICArea ( HDB::HDBRegistry &  hdbRegistry, const TTAMachine::Machine &  machine, const IDF::MachineImplementation &  machineImplementation, AreaInGates &  area  )

virtual

Estimates the area of the IC of the given machine.

Parameters

hdbRegistry	The registry for accessing HDBs.
machine	Architecture of the machine.
machineImplementation	The implementation of the machine.
area	The calculated area should be stored in this argument.

Returns

True in case the area can be estimated, false if it cannot.

Reimplemented in DefaultICDecoderEstimator.

Definition at line 102 of file ICDecoderEstimatorPlugin.cc.

                  {
 
    return false;
}

Referenced by CostEstimator::Estimator::icArea().

estimateICDelayOfPath()

bool CostEstimator::ICDecoderEstimatorPlugin::estimateICDelayOfPath ( HDB::HDBRegistry &  hdbRegistry, const TransportPath &  path, const IDF::MachineImplementation &  machineImplementation, const IDF::SocketImplementationLocation &  sourceSocketImplementation, const IDF::BusImplementationLocation &  busImplementation, const IDF::SocketImplementationLocation &  destinationSocketImplementation, DelayInNanoSeconds &  delay  )

virtual

Estimates the delay of the given path in the interconnection network.

The estimated path starts from source socket and traverses through a bus to a target socket. The delay caused by reading and writing from ports are not included in this value. The default implementation returns false to signal that the estimation functionality is not implemented by the plugin.

Parameters

hdbRegistry	The registry for accessing HDBs.
path	The path.
machineImplementation	The implementation of the machine.
sourceSocketImplementation	The implementation identification of the source socket.
busImplementation	The implementation identification of the bus.
destinationSocketImplementation	The implementation identification of the destination socket.
delay	The calculated delay should be stored in this argument.

Returns

True in case the delay can be estimated, false if it cannot.

Reimplemented in DefaultICDecoderEstimator.

Definition at line 80 of file ICDecoderEstimatorPlugin.cc.

                             {
 
    return false;
}

Referenced by CostEstimator::Estimator::estimateSocketToSocketDelayOfPath().

estimateICEnergy()

bool CostEstimator::ICDecoderEstimatorPlugin::estimateICEnergy ( HDB::HDBRegistry &  hdbRegistry, const TTAMachine::Machine &  machine, const IDF::MachineImplementation &  machineImplementation, const TTAProgram::Program &  program, const ExecutionTrace &  traceDB, EnergyInMilliJoules &  energy  )

virtual

Estimates the energy consumed by the IC of the given machine by running the given program.

Parameters

hdbRegistry	The registry for accessing HDBs.
machine	Architecture of the processor.
machineImplementation	Implementation defintions of the processor.
traceDB	The simulation trace database obtained from running the program.
energy	The calculated energy should be stored in this argument.

Returns

True in case energy can be estimated, false if it cannot.

Reimplemented in DefaultICDecoderEstimator.

Definition at line 124 of file ICDecoderEstimatorPlugin.cc.

                          {
 
    return false;
}

Referenced by CostEstimator::Estimator::icEnergy().

generateControlUnit()

TTAMachine::ControlUnit * CostEstimator::ICDecoderEstimatorPlugin::generateControlUnit ( )

virtual

Generates a control unit.

Returns

The control unit.

Definition at line 141 of file ICDecoderEstimatorPlugin.cc.

                                              {
 
    const std::string RA_PORT_NAME = "ra";
    const std::string OP_PORT_NAME = "pc";
    const std::string OPNAME_JUMP = "jump";
    const std::string OPNAME_CALL = "call";
    const std::string COMP_DEFAULT_NAME_GCU = "gcu";
 
    // Add default ports.
    TTAMachine::ControlUnit* gcu = new TTAMachine::ControlUnit(
        COMP_DEFAULT_NAME_GCU, 3, 1);
    
    TTAMachine::FUPort* opPort = 
        new TTAMachine::FUPort(OP_PORT_NAME, 32, *gcu, true, true);
    TTAMachine::SpecialRegisterPort* raPort =
        new TTAMachine::SpecialRegisterPort(RA_PORT_NAME, 32, *gcu);
    
    gcu->setReturnAddressPort(*raPort);
    
    // Add default operations.
    TTAMachine::HWOperation* jump = 
        new TTAMachine::HWOperation(OPNAME_JUMP, *gcu);
    jump->bindPort(1, *opPort);
    jump->pipeline()->addPortRead(1, 0, 1);
 
    TTAMachine::HWOperation* call = 
        new TTAMachine::HWOperation(OPNAME_CALL, *gcu);
    call->bindPort(1, *opPort);
    call->pipeline()->addPortRead(1, 0, 1);
 
    return gcu;
}

References TTAMachine::ExecutionPipeline::addPortRead(), TTAMachine::HWOperation::bindPort(), TTAMachine::HWOperation::pipeline(), and TTAMachine::ControlUnit::setReturnAddressPort().

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The documentation for this class was generated from the following files:

• ICDecoderEstimatorPlugin.hh
• ICDecoderEstimatorPlugin.cc