wrench::VirtualizedClusterComputeService Class Reference

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

#include <VirtualizedClusterComputeService.h>

Inheritance diagram for wrench::VirtualizedClusterComputeService:
wrench::CloudComputeService wrench::ComputeService wrench::Service wrench::S4U_Daemon

Public Member Functions

 VirtualizedClusterComputeService (const std::string &hostname, std::vector< std::string > &execution_hosts, std::string scratch_space_mount_point, std::map< std::string, std::string > property_list={}, std::map< std::string, double > messagepayload_list={})
 Constructor. More...
 
std::string getVMPhysicalHostname (const std::string &vm_name)
 Get the name of the physical host on which a VM is running. More...
 
virtual void migrateVM (const std::string &vm_name, const std::string &dest_pm_hostname)
 Synchronously migrate a VM to another physical host. More...
 
virtual std::shared_ptr< BareMetalComputeServicestartVM (const std::string &vm_name)
 Start a VM. More...
 
virtual std::shared_ptr< BareMetalComputeServicestartVM (const std::string &vm_name, const std::string &pm_name)
 Start a VM. More...
 
- Public Member Functions inherited from wrench::CloudComputeService
 CloudComputeService (const std::string &hostname, std::vector< std::string > &execution_hosts, std::string scratch_space_mount_point, std::map< std::string, std::string > property_list={}, std::map< std::string, double > messagepayload_list={})
 Constructor. More...
 
 ~CloudComputeService ()
 Destructor.
 
virtual std::string createVM (unsigned long num_cores, double ram_memory, std::map< std::string, std::string > property_list={}, std::map< std::string, double > messagepayload_list={})
 Create a BareMetalComputeService VM (balances load on execution hosts) More...
 
virtual std::string createVM (unsigned long num_cores, double ram_memory, std::string desired_vm_name, std::map< std::string, std::string > property_list={}, std::map< std::string, double > messagepayload_list={})
 Create a BareMetalComputeService VM (balances load on execution hosts) More...
 
virtual void destroyVM (const std::string &vm_name)
 Destroy a VM. More...
 
std::vector< std::string > getExecutionHosts ()
 Get the list of execution hosts available to run VMs. More...
 
virtual std::shared_ptr< BareMetalComputeServicegetVMComputeService (const std::string &vm_name)
 Get the compute service running on a VM, if any. More...
 
virtual bool isVMDown (const std::string &vm_name)
 Method to check whether a VM is currently down. More...
 
virtual bool isVMRunning (const std::string &vm_name)
 Method to check whether a VM is currently running. More...
 
virtual bool isVMSuspended (const std::string &vm_name)
 Method to check whether a VM is currently running. More...
 
virtual void resumeVM (const std::string &vm_name)
 Resume a suspended VM. More...
 
virtual void shutdownVM (const std::string &vm_name)
 Shutdown an active VM. More...
 
virtual std::shared_ptr< BareMetalComputeServicestartVM (const std::string &vm_name)
 Start a VM. More...
 
void submitPilotJob (PilotJob *job, const std::map< std::string, std::string > &service_specific_args) override
 Asynchronously submit a pilot job to the cloud service. More...
 
void submitStandardJob (StandardJob *job, const std::map< std::string, std::string > &service_specific_args) override
 Submit a standard job to the cloud service. More...
 
virtual void suspendVM (const std::string &vm_name)
 Suspend a running VM. More...
 
void terminatePilotJob (PilotJob *job) override
 non-implemented More...
 
void terminateStandardJob (StandardJob *job) override
 Terminate a standard job to the compute service (virtual) More...
 
void validateProperties ()
 Validate the service's properties. More...
 
- Public Member Functions inherited from wrench::ComputeService
 ComputeService (const std::string &hostname, std::string service_name, std::string mailbox_name_prefix, std::string scratch_space_mount_point)
 Constructor. More...
 
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...
 
unsigned long getNumHosts ()
 Get the number of hosts that the compute service manages. More...
 
std::map< std::string, double > getPerHostAvailableMemoryCapacity ()
 Get ram availability for each of the compute service's host. More...
 
std::map< std::string, unsigned long > getPerHostNumCores ()
 Get core counts for each of the compute service's host. More...
 
std::map< std::string, unsigned long > getPerHostNumIdleCores ()
 Get idle core counts for each of the compute service's host. More...
 
std::shared_ptr< StorageServicegetScratch ()
 Method that returns the computer service's scratch space's storage service. More...
 
unsigned long getTotalNumCores ()
 Get the total core counts for all hosts of the compute service. More...
 
virtual unsigned long getTotalNumIdleCores ()
 Get the total idle core count 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.
 
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
void assertServiceIsUp ()
 Throws an exception if the service is not up. More...
 
std::string getHostname ()
 Get the name of the host on which the service is / will be running. More...
 
double getMessagePayloadValue (std::string)
 Get a message payload of the Service as a double. 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...
 
unsigned long getPropertyValueAsUnsignedLong (std::string)
 Get a property of the Service as an unsigned long. More...
 
bool isUp ()
 Returns true if the service is UP, false otherwise. More...
 
void resume ()
 Resume the service. More...
 
void setNetworkTimeoutValue (double value)
 Sets the service's network timeout value. More...
 
void setStateToDown ()
 Set the state of the service to DOWN.
 
void start (std::shared_ptr< Service > this_service, bool daemonize, bool auto_restart)
 Start the service. More...
 
void suspend ()
 Suspend the service.
 
- Public Member Functions inherited from wrench::S4U_Daemon
 S4U_Daemon (std::string hostname, std::string process_name_prefix, std::string mailbox_prefix)
 Constructor (daemon with a mailbox) More...
 
virtual ~S4U_Daemon ()
 
virtual void cleanup (bool has_returned_from_main, int return_value)
 Cleanup function called when the daemon terminates (for whatever reason). The default behavior is to throw an exception if the host is off. This method should be overriden in a daemons implements some fault-tolerant behavior, or is naturally tolerant. More...
 
void createLifeSaver (std::shared_ptr< S4U_Daemon > reference)
 Create a life saver for the daemon. More...
 
std::string getName ()
 Retrieve the process name. More...
 
int getReturnValue ()
 Returns the value returned by main() (if the daemon has returned from main) More...
 
S4U_Daemon::State getState ()
 Get the daemon's state. More...
 
bool hasReturnedFromMain ()
 Returns true if the daemon has returned from main() (i.e., not brutally killed) More...
 
bool isDaemonized ()
 Return the daemonized status of the daemon. More...
 
bool isSetToAutoRestart ()
 Return the auto-restart status of the daemon. More...
 
std::pair< bool, int > join ()
 Join (i.e., wait for) the daemon. More...
 
void resumeActor ()
 Resume the daemon/actor.
 
void setupOnExitFunction ()
 Sets up the on_exit functionf for the actor.
 
void startDaemon (bool daemonized, bool auto_restart)
 Start the daemon. More...
 
void suspendActor ()
 Suspend the daemon/actor.
 

Protected Member Functions

int main () override
 Main method of the daemon. More...
 
virtual void processMigrateVM (const std::string &answer_mailbox, const std::string &vm_name, const std::string &dest_pm_hostname)
 Process a VM migration request. More...
 
virtual bool processNextMessage () override
 Wait for and react to any incoming message. More...
 
- Protected Member Functions inherited from wrench::CloudComputeService
virtual void processBareMetalComputeServiceTermination (std::shared_ptr< BareMetalComputeService > cs, int exit_code)
 Process a termination by a previously started BareMetalComputeService on a VM. More...
 
virtual void processCreateVM (const std::string &answer_mailbox, unsigned long requested_num_cores, double requested_ram, std::string desired_vm_name, std::map< std::string, std::string > property_list, std::map< std::string, double > messagepayload_list)
 Create a BareMetalComputeService VM on a physical machine. More...
 
virtual void processDestroyVM (const std::string &answer_mailbox, const std::string &vm_name)
 : Process a VM destruction request More...
 
virtual void processGetExecutionHosts (const std::string &answer_mailbox)
 Process a execution host list request. More...
 
virtual void processGetResourceInformation (const std::string &answer_mailbox)
 Process a "get resource information message". More...
 
virtual void processResumeVM (const std::string &answer_mailbox, const std::string &vm_name)
 : Process a VM resume request More...
 
virtual void processShutdownVM (const std::string &answer_mailbox, const std::string &vm_name)
 : Process a VM shutdown request More...
 
virtual void processStartVM (const std::string &answer_mailbox, const std::string &vm_name, const std::string &pm_name)
 : Process a VM start request by startibnng a VM on a host (using best fit for RAM first, and then for cores) More...
 
virtual void processSubmitPilotJob (const std::string &answer_mailbox, PilotJob *job, std::map< std::string, std::string > &service_specific_args)
 Process a submit pilot job request. More...
 
virtual void processSubmitStandardJob (const std::string &answer_mailbox, StandardJob *job, std::map< std::string, std::string > &service_specific_args)
 Process a submit standard job request. More...
 
virtual void processSuspendVM (const std::string &answer_mailbox, const std::string &vm_name)
 : Process a VM suspend request More...
 
std::shared_ptr< SimulationMessagesendRequest (std::string &answer_mailbox, ComputeServiceMessage *message)
 Send a message request. More...
 
void stopAllVMs ()
 Terminate all VMs.
 
- Protected Member Functions inherited from wrench::ComputeService
 ComputeService (const std::string &hostname, std::string service_name, std::string mailbox_name_prefix, std::shared_ptr< StorageService > scratch_space)
 Constructor. More...
 
std::shared_ptr< StorageServicegetScratchSharedPtr ()
 Get a shared pointer to the compute service's scratch storage space. More...
 
void submitJob (WorkflowJob *job, const std::map< std::string, std::string > &={})
 Submit a job to the compute service. More...
 
- Protected Member Functions inherited from wrench::Service
 Service (std::string hostname, std::string process_name_prefix, std::string mailbox_name_prefix)
 Constructor. More...
 
 ~Service ()
 Destructor.
 
template<class T >
std::shared_ptr< T > getSharedPtr ()
 Method to retrieve the shared_ptr to a service. More...
 
void serviceSanityCheck ()
 Check whether the service is properly configured and running. More...
 
void setMessagePayload (std::string, double)
 Set a message payload of the Service. More...
 
void setMessagePayloads (std::map< std::string, double > default_messagepayload_values, std::map< std::string, double > overriden_messagepayload_values)
 Set default and user-defined message payloads. More...
 
void setProperties (std::map< std::string, std::string > default_property_values, std::map< std::string, std::string > overriden_property_values)
 Set default and user-defined properties. More...
 
void setProperty (std::string, std::string)
 Set a property of the Service. More...
 
- Protected Member Functions inherited from wrench::S4U_Daemon
void acquireDaemonLock ()
 Lock the daemon's lock.
 
void killActor ()
 Kill the daemon/actor (does nothing if already dead) More...
 
void releaseDaemonLock ()
 Unlock the daemon's lock.
 
void runMainMethod ()
 Method that run's the user-defined main method (that's called by the S4U actor class)
 

Additional Inherited Members

- Public Types inherited from wrench::S4U_Daemon
enum  State { UP, DOWN, SUSPENDED }
 Daemon states. More...
 
- Static Public Member Functions inherited from wrench::Service
static void cleanupTrackedServices ()
 Go through the tracked services and remove all entries with a refcount of 1!
 
static void clearTrackedServices ()
 Forget all tracked services.
 
static void increaseNumCompletedServicesCount ()
 Increase the completed service count.
 
- Public Attributes inherited from wrench::S4U_Daemon
std::string hostname
 The name of the host on which the daemon is running.
 
std::string initial_mailbox_name
 The initial name of the daemon's mailbox.
 
LifeSaver * life_saver = nullptr
 The daemon's life saver.
 
std::string mailbox_name
 The current name of the daemon's mailbox.
 
std::string process_name
 The name of the daemon.
 
Simulationsimulation
 a pointer to the simulation object
 
- 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 Protected Member Functions inherited from wrench::Service
static void assertServiceIsUp (std::shared_ptr< Service > s)
 Assert for the service being up. More...
 
template<class T >
static std::shared_ptr< T > getServiceByName (std::string name)
 Method to retrieve the shared_ptr to a service based on the service's name (not efficient) More...
 
- Protected Attributes inherited from wrench::CloudComputeService
std::vector< std::string > execution_hosts
 List of execution host names.
 
std::map< std::string, unsigned long > used_cores_per_execution_host
 Map of number of used cores at the hosts.
 
std::map< std::string, double > used_ram_per_execution_host
 Map of used RAM at the hosts.
 
std::map< std::string, std::pair< std::shared_ptr< S4U_VirtualMachine >, std::shared_ptr< BareMetalComputeService > > > vm_list
 A map of VMs.
 
- Protected Attributes inherited from wrench::ComputeService
std::shared_ptr< StorageServicescratch_space_storage_service
 A scratch storage service associated to the compute service.
 
- Protected Attributes inherited from wrench::Service
std::map< std::string, double > messagepayload_list
 The service's messagepayload list.
 
std::string name
 The service's name.
 
double network_timeout = 30.0
 The time (in seconds) after which a service that doesn't send back a reply (control) message causes a NetworkTimeOut exception. (default: 30 second; if <0 never timeout)
 
std::map< std::string, std::string > property_list
 The service's property list.
 
- Protected Attributes inherited from wrench::S4U_Daemon
unsigned int num_starts = 0
 The number of time that this daemon has started (i.e., 1 + number of restarts)
 
State state
 The service's state.
 

Detailed Description

A virtualized cluster-based compute service.

Constructor & Destructor Documentation

◆ VirtualizedClusterComputeService()

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

Constructor.

Parameters
hostnamethe name of the hostcreate on which to start the service
execution_hoststhe hosts available for running virtual machines
scratch_space_mount_pointthe mount of of the scratch space of the cloud service ("" means none)
property_lista property list ({} means "use all defaults")
messagepayload_lista message payload list ({} means "use all defaults")
Exceptions
std::runtime_error

Member Function Documentation

◆ getVMPhysicalHostname()

std::string wrench::VirtualizedClusterComputeService::getVMPhysicalHostname ( const std::string &  vm_name)

Get the name of the physical host on which a VM is running.

Parameters
vm_namevirtual machine name
Returns
physical host name

◆ main()

int wrench::VirtualizedClusterComputeService::main ( )
overrideprotectedvirtual

Main method of the daemon.

Returns
0 on termination

Main loop

Reimplemented from wrench::CloudComputeService.

◆ migrateVM()

void wrench::VirtualizedClusterComputeService::migrateVM ( const std::string &  vm_name,
const std::string &  dest_pm_hostname 
)
virtual

Synchronously migrate a VM to another physical host.

Parameters
vm_namevirtual machine name
dest_pm_hostnamethe name of the destination physical machine host
Exceptions
std::invalid_argument

◆ processMigrateVM()

void wrench::VirtualizedClusterComputeService::processMigrateVM ( const std::string &  answer_mailbox,
const std::string &  vm_name,
const std::string &  dest_pm_hostname 
)
protectedvirtual

Process a VM migration request.

Parameters
answer_mailboxthe mailbox to which the answer message should be sent
vm_namethe name of the VM host
dest_pm_hostnamethe name of the destination physical machine host
Exceptions
std::runtime_error

◆ processNextMessage()

bool wrench::VirtualizedClusterComputeService::processNextMessage ( )
overrideprotectedvirtual

Wait for and react to any incoming message.

Returns
false if the daemon should terminate, true otherwise
Exceptions
std::runtime_error

Reimplemented from wrench::CloudComputeService.

◆ startVM() [1/2]

std::shared_ptr< BareMetalComputeService > wrench::CloudComputeService::startVM

Start a VM.

Parameters
vm_namethe name of the VM
Returns
A BareMetalComputeService that runs on the VM
Exceptions
WorkflowExecutionException
std::invalid_argument

◆ startVM() [2/2]

std::shared_ptr< BareMetalComputeService > wrench::VirtualizedClusterComputeService::startVM ( const std::string &  vm_name,
const std::string &  pm_name 
)
virtual

Start a VM.

Parameters
vm_namethe name of the VM
pm_namethe physical host on which to start the VM
Returns
The compute service running on the VM
Exceptions
WorkflowExecutionException
std::invalid_argument

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