configuration

Class XHost

java.lang.Object

configuration.XHost

public class XHost
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
XHost(org.simgrid.msg.Host h, int memSize, int ncores, int totalCPUCapa, int netBW, java.lang.String ip) Constructor Please note that by default a XHOST is off (you should invoke turnOn)

Method Summary

Modifier and Type	Method and Description
double	computeCPUDemand()
int	getCPUCapacity()
double	getCPUDemand()
java.lang.String	getIP()
int	getMemDemand()
int	getMemSize()
java.lang.String	getName()
int	getNbCores()
int	getNbOfViolations()
int	getNbVMs()
int	getNetBW()
java.util.Collection<XVM>	getRunnings()
org.simgrid.msg.Host	getSGHost()
int	getTurnOffNb()
java.util.Collection<XVM>	getVMs()
void	incViolation() Increment the number of violations
boolean	isOff()
boolean	isOn()
boolean	isOnGoingMigration() Ugly patch to prevent migration crash when a node is switched off TODO this code should be removed and the migration should be robust
boolean	isViable() check whether a pm is viable or not (currently only for the CPU dimension)
int	migrate(java.lang.String vmName, XHost dest) Migrate the vm vmName from this host to the dest one.
int	resumeVM(XVM vm)
void	setCPUDemand(double newDemand)
void	setOnGoingMigration(boolean onGoingMigration) Ugly patch to prevent migration crash when a node is switched off TODO this code should be removed and the migration should be robust
void	start(XVM sgVM) Link the VM to the host and start it
int	suspendVM(XVM vm)
void	turnOff() turnOff a host (the host should be off, otherwise nothing happens)
void	turnOn() Turn on a host (the host should have been turn off previously), otherwise nothing happens

Methods inherited from class java.lang.Object

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

Constructor Detail

XHost

public XHost(org.simgrid.msg.Host h,
             int memSize,
             int ncores,
             int totalCPUCapa,
             int netBW,
             java.lang.String ip)

Constructor Please note that by default a XHOST is off (you should invoke turnOn)

Parameters:

h - MSG host to extend

memSize - the size of the memory of the host (rigid value, once it has been assigned it does not change)

ncores - the number of cores available on the host

totalCPUCapa - the total cpu capacity of the host

netBW - the network bandwidth of the host

ip - the ip of the host

Method Detail

getSGHost

public org.simgrid.msg.Host getSGHost()

Returns:

the MSG host abstraction

getVMs

public java.util.Collection<XVM> getVMs()

Returns:

the VMs hosted by the current node

getMemSize

public int getMemSize()

Returns:

the size of the memory in MBytes (rigid value)

getCPUCapacity

public int getCPUCapacity()

Returns:

total CPU capacity

getNbCores

public int getNbCores()

Returns:

the nb of cores available on the node

getNetBW

public int getNetBW()

Returns:

the NIC capability (i.e. the bandwidth expressed in MBytes)

getIP

public java.lang.String getIP()

Returns:

the IP of the host

isViable

public boolean isViable()

check whether a pm is viable or not (currently only for the CPU dimension)

Returns:

boolean true if the PM is non viable (i.e. overloaded from the CPU viewpoint)

computeCPUDemand

public double computeCPUDemand()

Returns:

the sum of all CPU demands of the hosted VMs

getCPUDemand

public double getCPUDemand()

setCPUDemand

public void setCPUDemand(double newDemand)

getMemDemand

public int getMemDemand()

Returns:

the sum of all memory demands of the hosted VMs

start

public void start(XVM sgVM)

Link the VM to the host and start it

Parameters:

sgVM -

migrate

public int migrate(java.lang.String vmName,
                   XHost dest)

Migrate the vm vmName from this host to the dest one.

Parameters:

vmName -

dest -

Returns:

0 if the migration succeeded -1 if it crashed

suspendVM

public int suspendVM(XVM vm)

Parameters:

vm -

Returns:

0 if success, 1 should be postponed, -1 if failure, -2 if already suspended

resumeVM

public int resumeVM(XVM vm)

Parameters:

vm -

Returns:

0 if success, -1 if failure, 1 if already running

getName

public java.lang.String getName()

Returns:

the name that has been assigned to the sg Host abstraction

getRunnings

public java.util.Collection<XVM> getRunnings()

Returns:

the vm hosted on the host (i.e. the collection of XVMs)

getNbVMs

public int getNbVMs()

Returns:

the current number of hosted VMs

turnOff

public void turnOff()

turnOff a host (the host should be off, otherwise nothing happens)

turnOn

public void turnOn()

Turn on a host (the host should have been turn off previously), otherwise nothing happens

isOff

public boolean isOff()

Returns:

whether the MSG host is off

isOn

public boolean isOn()

Returns:

whether the MSG host is on

getTurnOffNb

public int getTurnOffNb()

Returns:

the number of times the host has been turned off since the beginning of the simulation

getNbOfViolations

public int getNbOfViolations()

Returns:

the number of times the host has turn to a violation state since the beginning of the simulation

incViolation

public void incViolation()

Increment the number of violations

isOnGoingMigration

public boolean isOnGoingMigration()

Ugly patch to prevent migration crash when a node is switched off TODO this code should be removed and the migration should be robust

setOnGoingMigration

public void setOnGoingMigration(boolean onGoingMigration)

Ugly patch to prevent migration crash when a node is switched off TODO this code should be removed and the migration should be robust