DcHost Class Reference

#include <dchost.h>

Inheritance diagram for DcHost:

Collaboration diagram for DcHost:

Public Member Functions
	DcHost ()
virtual	~DcHost ()
virtual void	print ()
virtual void	printTasklist ()
virtual int	command (int argc, const char *const *argv)
virtual void	updateEnergyAndConsumption ()
Public Member Functions inherited from ResourceProvider
	ResourceProvider ()
virtual	~ResourceProvider ()
void	setTskComSink (TskComSink *tcs)
int	tryToAllocate (ResourceConsumer *rc)
bool	releaseAllocation (ResourceConsumer *rc)
bool	addVM (VM *newVm)
bool	removeVM (VM *vm)
ResourceProvider *	getHost ()
DcHost *	getRootHost ()
void	recv (ResourceConsumer *rcobj)
double	getResTypeUtil (res_type type)
double	getTotalCap (res_type type)
int	testSchedulingPossibility (CloudTask *tskobj)
int	trySchedulingTsk (CloudTask *tskobj)
void	sendTaskOutput (CloudTask *task)
void	scheduleNextExent (double nextDeadline)
TskComAgent *	getTskComAgent ()

Public Attributes
DcRack *	rack_
PowerModel *	powerModel
double	eConsumed_
double	eNominalrate_
double	eCurrentConsumption_
int	eDNS_enabled_
Public Attributes inherited from ResourceProvider
std::vector< std::vector< DcResource * > >	resource_list
int	id_
int	ntasks_
double	currentLoad_
double	currentLoadMem_
double	currentLoadStor_
double	currentLoadNet_
int	eDVFS_enabled_
int	tskFailed_
TskComAgent *	tskComAgent

Protected Member Functions
void	setCurrentConsumption ()
void	eUpdate ()
virtual void	addResource (DcResource *res)
void	setPowerModel (PowerModel *pModel)
Protected Member Functions inherited from ResourceProvider
virtual void	handle (Event *event)
void	updateEvent ()
void	nextEvent (double delay)
double	getCurrentLoad ()
double	updateResTypeUtil (res_type type)
double	getFreeCap (res_type type)
double	getFreeCapRecursive (res_type type)
double	getUsedNet (bool in, bool out)
double	getUsedNetRecursive (bool in, bool out)
void	setTskComAgent (TskComAgent *agnt)
void	setAgent (ProviderOutAgent *agent)
TcpAgent *	getAgent ()
void	attachSink (VmMigrationSink *vm_mig_sink)
void	attachSource (ProviderOutAgent *tcp_agent)
void	detachSink (VmMigrationSink *vm_mig_sink)
void	detachSource (ProviderOutAgent *tcp_agent)

Protected Attributes
double	eLastUpdateTime_
Protected Attributes inherited from ResourceProvider
double	resource_utilization [LastResType+1]
std::vector< ResourceConsumer * >	hosted_vms_
std::vector< VmMigrationSink * >	vm_migration_sinks_
std::vector< ProviderOutAgent * >	vm_migration_sources_
TskComSink *	tskComSink_
ProviderOutAgent *	poagent_
ResourceProvider *	host
bool	started_
int	status_
Event	event_

Additional Inherited Members
Public Types inherited from ResourceProvider
enum	EventStatus
Static Public Attributes inherited from ResourceProvider
static double	uplink_overhead =ResourceProvider::MTU/ResourceProvider::useful_bytes
static double	MTU =1500.0
static double	useful_bytes =1460.0

Detailed Description

Definition at line 27 of file dchost.h.

Constructor & Destructor Documentation

DcHost::DcHost

(

)

Definition at line 16 of file dchost.cc.

              : eConsumed_(0.0), eNominalrate_ (0.0),  eCurrentConsumption_ (0.0),   eDNS_enabled_(0.0) , eLastUpdateTime_(0.0)
{
                bind("id_", &id_);
                bind("ntasks_", &ntasks_);
                bind("currentLoad_", &currentLoad_);
                bind("currentLoadMem_", &currentLoadMem_);
                bind("currentLoadStor_", &currentLoadStor_);
                bind("tskFailed_", &tskFailed_);

                bind("eConsumed_", &eConsumed_);                                                                /* total W of energy consumed */
                bind("eNominalrate_", &eNominalrate_);
                bind("eCurrentConsumption_", &eCurrentConsumption_);                            /* current consumption rate */

                bind("eDVFS_enabled_", &eDVFS_enabled_);                                        /* ON when DVFS is enabled */
                bind("eDNS_enabled_", &eDNS_enabled_);                                          /* ON when DNS is enabled */

}

DcHost::~DcHost ( )

virtual

Definition at line 34 of file dchost.cc.

{
                delete powerModel;
}

Member Function Documentation

void DcHost::addResource ( DcResource *  res )

protectedvirtual

Reimplemented from ResourceProvider.

Definition at line 130 of file dchost.cc.

                                       {
                ResourceProvider::addResource(res);
                if(res->specification->getPowerModel()!=NULL){
                                powerModel->addComponent(res);
                }
}

int DcHost::command ( int  argc, const char *const *  argv  )

virtual

Reimplemented from ResourceProvider.

Definition at line 44 of file dchost.cc.

{
                Tcl& tcl = Tcl::instance();

                if (argc == 2) {
                                if (strcmp(argv[1], "start") == 0) {

                                                /* start counting energy consumed */
                                                setCurrentConsumption();
                                                eLastUpdateTime_ = Scheduler::instance().clock();
                                                started_ = true;
                                                return (TCL_OK);
                                } else if (strcmp(argv[1], "stop") == 0) {
                                                /* update total energy consumed */
                                                updateEnergyAndConsumption();
                                                return (TCL_OK);
                                } else if (strcmp(argv[1], "print") == 0) {
                                                /* print general info */
                                                print();
                                                return (TCL_OK);
                                }
                } else if (argc == 3) {
                                if (strcmp(argv[1], "set-power-model") == 0) {
                                                PowerModel* pModel = (PowerModel*) TclObject::lookup(argv[2]);
                                                if (pModel == NULL) {
                                                                tcl.resultf("no such power model %s", argv[2]);
                                                                return(TCL_ERROR);
                                                }
                                                setPowerModel(pModel);
                                                return(TCL_OK);
                                }
                }
                return (ResourceProvider::command(argc, argv));
}

void DcHost::eUpdate ( )

protected

Definition at line 120 of file dchost.cc.

{
                /* Get time spent since last update */
                double etime = (Scheduler::instance().clock() - eLastUpdateTime_)/3600;         /* time in hours */

                eConsumed_ += etime * eCurrentConsumption_;
                eLastUpdateTime_ = Scheduler::instance().clock();

}

void DcHost::print ( )

virtual

Implements ResourceProvider.

Definition at line 79 of file dchost.cc.

                  {
                std::cout << "DcHost:\t";
                std::cout << id_;
                std::cout << "\n";
                std::cout << "Resources:\n";
                std::vector <std::vector<DcResource*> >::iterator iter_out;
                for(iter_out = resource_list.begin(); iter_out!=resource_list.end() ;iter_out++){
                                std::vector <DcResource*>::iterator iter;
                                for (iter = iter_out->begin(); iter!=iter_out->end(); iter++)
                                {
                                                (*iter)->print();
                                }
                }
                std::cout << "\n";

}

void DcHost::printTasklist ( )

virtual

Reimplemented from ResourceProvider.

Definition at line 96 of file dchost.cc.

                          {
                std::vector<CloudTask *>::iterator iter;
                std::cout <<"Host " <<this->id_  << "\n";
                ResourceProvider::printTasklist();
}

void DcHost::setCurrentConsumption ( )

protected

Definition at line 102 of file dchost.cc.

{
                double * predictors = new double[LastResType+1];
                bool idle = true;
                for(int i = Computing; i <= LastResType; i++){
                                predictors[i]=updateResTypeUtil(static_cast<res_type>(i));
                                if(predictors[i]!=0){
                                                idle=false;
                                }
                }
                if((eDNS_enabled_) && (idle)){
                                eCurrentConsumption_ = 0;
                } else {
                                eCurrentConsumption_ = powerModel->estimate(4,predictors);
                }
                delete[] predictors;
}

void DcHost::setPowerModel ( PowerModel *  pModel )

protected

Definition at line 39 of file dchost.cc.

                                            {
                powerModel = pModel;
}

void DcHost::updateEnergyAndConsumption ( )

virtual

Implements ResourceProvider.

Definition at line 138 of file dchost.cc.

                                       {
                setCurrentConsumption();
                eUpdate();
}

Member Data Documentation

double DcHost::eConsumed_

total W of energy consumed

Definition at line 39 of file dchost.h.

double DcHost::eCurrentConsumption_

current consumption rate

Definition at line 41 of file dchost.h.

int DcHost::eDNS_enabled_

ON when dynamic shutdown is enabled

Definition at line 44 of file dchost.h.

double DcHost::eLastUpdateTime_

protected

Definition at line 57 of file dchost.h.

double DcHost::eNominalrate_

nominal consumption rate at full load at max CPU frequency

Definition at line 40 of file dchost.h.

PowerModel* DcHost::powerModel

Definition at line 34 of file dchost.h.

DcRack* DcHost::rack_

Definition at line 33 of file dchost.h.

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

• dchost.h
• dchost.cc