A virtualized cluster-based compute service. More...

#include <VirtualizedClusterService.h>

Inheritance diagram for wrench::VirtualizedClusterService:

Public Member Functions
	VirtualizedClusterService (const std::string &hostname, std::vector< std::string > &execution_hosts, double scratch_space_size, std::map< std::string, std::string > property_list={}, std::map< std::string, std::string > messagepayload_list={})
	Constructor. More...

virtual std::string	createVM (const std::string &pm_hostname, unsigned long num_cores=ComputeService::ALL_CORES, double ram_memory=ComputeService::ALL_RAM, std::map< std::string, std::string > property_list={}, std::map< std::string, std::string > messagepayload_list={})
	Create a BareMetalComputeService VM on a physical machine. More...

virtual bool	migrateVM (const std::string &vm_hostname, const std::string &dest_pm_hostname)
	Synchronously migrate a VM to another physical host. More...

Public Member Functions inherited from wrench::CloudService
	CloudService (const std::string &hostname, std::vector< std::string > &execution_hosts, double scratch_space_size, std::map< std::string, std::string > property_list={}, std::map< std::string, std::string > messagepayload_list={})
	Constructor. More...

virtual std::string	createVM (unsigned long num_cores=ComputeService::ALL_CORES, double ram_memory=ComputeService::ALL_RAM, std::map< std::string, std::string > property_list={}, std::map< std::string, std::string > messagepayload_list={})
	Create a BareMetalComputeService VM (balances load on execution hosts) More...

std::vector< std::string >	getExecutionHosts ()
	Get the list of execution hosts available to run VMs. More...

virtual bool	resumeVM (const std::string &vm_hostname)
	Resume a suspended VM. More...

virtual bool	shutdownVM (const std::string &vm_hostname)
	Shutdown an active VM. More...

virtual bool	startVM (const std::string &vm_hostname)
	Start a VM. More...

virtual bool	suspendVM (const std::string &vm_hostname)
	Suspend a running VM. More...

Public Member Functions inherited from wrench::ComputeService
std::map< std::string, double >	getCoreFlopRate ()
	Get the per-core flop rate of the compute service's hosts. More...

double	getFreeScratchSpaceSize ()
	Get the free space on the compute service's scratch storage space. More...

std::map< std::string, double >	getMemoryCapacity ()
	Get the RAM capacities for each of the compute service's hosts. More...

std::map< std::string, unsigned long >	getNumCores ()
	Get core counts for each of the compute service's host. More...

unsigned long	getNumHosts ()
	Get the number of hosts that the compute service manages. More...

std::map< std::string, unsigned long >	getNumIdleCores ()
	Get idle core counts for each of the compute service's host. More...

StorageService *	getScratch ()
	Get the compute service's scratch storage space. More...

std::shared_ptr< StorageService >	getScratchSharedPtr ()
	Get a shared pointer to the compute service's scratch storage space. More...

unsigned long	getTotalNumCores ()
	Get the total core counts for all hosts of the compute service. More...

unsigned long	getTotalNumIdleCores ()
	Get the total idle core counts for all hosts of the compute service. More...

double	getTotalScratchSpaceSize ()
	Get the total capacity of the compute service's scratch storage space. More...

double	getTTL ()
	Get the time-to-live of the compute service. More...

bool	hasScratch ()
	Checks if the compute service has a scratch space. More...

void	stop () override
	Stop the compute service - must be called by the stop() method of derived classes.

void	submitJob (WorkflowJob *job, std::map< std::string, std::string >={})
	Submit a job to the compute service. More...

bool	supportsPilotJobs ()
	Get whether the compute service supports pilot jobs or not. More...

bool	supportsStandardJobs ()
	Get whether the compute service supports standard jobs or not. More...

void	terminateJob (WorkflowJob *job)
	Terminate a previously-submitted job (which may or may not be running yet) More...

Public Member Functions inherited from wrench::Service
std::string	getHostname ()
	Get the name of the host on which the service is / will be running. More...

double	getNetworkTimeoutValue ()
	Returns the service's network timeout value. More...

bool	getPropertyValueAsBoolean (std::string)
	Get a property of the Service as a boolean. More...

double	getPropertyValueAsDouble (std::string)
	Get a property of the Service as a double. More...

std::string	getPropertyValueAsString (std::string)
	Get a property of the Service as a string. More...

bool	isUp ()
	Returns true if the service is UP, false otherwise. More...

void	setNetworkTimeoutValue (double value)
	Sets the service's network timeout value. More...

void	start (std::shared_ptr< Service > this_service, bool daemonize, bool auto_restart)
	Start the service. More...

Additional Inherited Members
Public Types inherited from wrench::Service
enum	State { UP, DOWN }
	Service states. More...

Static Public Attributes inherited from wrench::ComputeService
static constexpr unsigned long	ALL_CORES = ULONG_MAX
	A convenient constant to mean "use all cores of a physical host" whenever a number of cores is needed when instantiating compute services.

static constexpr double	ALL_RAM = DBL_MAX
	A convenient constant to mean "use all ram of a physical host" whenever a ram capacity is needed when instantiating compute services.

static StorageService *	SCRATCH = (StorageService *) ULONG_MAX
	A convenient constant to mean "the scratch storage space" of a ComputeService. This is used to move data to a ComputeService's scratch storage space.

Protected Attributes inherited from wrench::CloudService
std::map< std::string, double >	cs_available_ram
	Map of available RAM at hosts.

std::vector< std::string >	execution_hosts
	List of execution host names.

std::map< std::string, unsigned long >	used_cores_per_execution_host
	A map of the number of used cores (per VM) per execution host.

std::map< std::string, std::tuple< std::shared_ptr< S4U_VirtualMachine >, std::shared_ptr< ComputeService >, unsigned long, unsigned long > >	vm_list
	A map of VMs described by the VM actor, the actual compute service, the total number of cores, and RAM size.

Detailed Description

A virtualized cluster-based compute service.

Constructor & Destructor Documentation

◆ VirtualizedClusterService()

wrench::VirtualizedClusterService::VirtualizedClusterService	(	const std::string &	hostname,
		std::vector< std::string > &	execution_hosts,
		double	scratch_space_size,
		std::map< std::string, std::string >	property_list = `{}`,
		std::map< std::string, std::string >	messagepayload_list = `{}`
	)

Constructor.

Parameters

hostname	the name of the hostcreate on which to start the service
execution_hosts	the hosts available for running virtual machines
scratch_space_size	the size for the scratch space of the cloud service
property_list	a property list ({} means "use all defaults")
messagepayload_list	a message payload list ({} means "use all defaults")

Exceptions

std::runtime_error

Member Function Documentation

◆ createVM()

std::string wrench::VirtualizedClusterService::createVM	(	const std::string &	pm_hostname,
		unsigned long	num_cores = `ComputeService::ALL_CORES`,
		double	ram_memory = `ComputeService::ALL_RAM`,
		std::map< std::string, std::string >	property_list = `{}`,
		std::map< std::string, std::string >	messagepayload_list = `{}`
	)

virtual

Create a BareMetalComputeService VM on a physical machine.

Parameters

pm_hostname	the name of the physical machine host
num_cores	the number of cores the service can use (use ComputeService::ALL_CORES to use all cores available on the host)
ram_memory	the VM's RAM memory capacity (use ComputeService::ALL_RAM to use all RAM available on the host, this can be lead to an out of memory issue)
property_list	a property list ({} means "use all defaults")
messagepayload_list	a message payload list ({} means "use all defaults")

Returns: Virtual machine name

Exceptions

WorkflowExecutionException

◆ migrateVM()

bool wrench::VirtualizedClusterService::migrateVM	(	const std::string &	vm_hostname,
		const std::string &	dest_pm_hostname
	)

virtual

Synchronously migrate a VM to another physical host.

Parameters

vm_hostname	virtual machine hostname
dest_pm_hostname	the name of the destination physical machine host

Returns: Whether the VM was successfully migrated

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

/Users/rafsilva/Documents/isi/workspace/wrench/wrench/include/wrench/services/compute/virtualized_cluster/VirtualizedClusterService.h
/Users/rafsilva/Documents/isi/workspace/wrench/wrench/src/wrench/services/compute/virtualized_cluster/VirtualizedClusterService.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ VirtualizedClusterService()

Member Function Documentation

◆ createVM()

◆ migrateVM()