wrench::BareMetalComputeService Class Reference

A compute service that manages a set of multi-core compute hosts and provides access to their resources. More...

#include <BareMetalComputeService.h>

Inheritance diagram for wrench::BareMetalComputeService:
wrench::ComputeService wrench::Service

Public Member Functions

 BareMetalComputeService (const std::string &hostname, const std::map< std::string, std::tuple< unsigned long, double >> compute_resources, double scratch_space_size, std::map< std::string, std::string > property_list={}, std::map< std::string, std::string > messagepayload_list={})
 Constructor. More...
 
 BareMetalComputeService (const std::string &hostname, const std::set< std::string > compute_hosts, double scratch_space_size, std::map< std::string, std::string > property_list={}, std::map< std::string, std::string > messagepayload_list={})
 Constructor. 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...
 
StorageServicegetScratch ()
 Get the compute service's scratch storage space. More...
 
std::shared_ptr< StorageServicegetScratchSharedPtr ()
 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 StorageServiceSCRATCH = (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.
 

Detailed Description

A compute service that manages a set of multi-core compute hosts and provides access to their resources.

One can think of this as a simple service that allows the user to run tasks and to specify for each task on which host it should run and with how many cores. If no host is specified, the service will pick the least loaded host. If no number of cores is specified, the service will use as many cores as possible. The service will make sure that the RAM capacity of a host is not exceeded by possibly delaying task executions until enough RAM is available.

Constructor & Destructor Documentation

◆ BareMetalComputeService() [1/2]

wrench::BareMetalComputeService::BareMetalComputeService ( const std::string &  hostname,
const std::map< std::string, std::tuple< unsigned long, double >>  compute_resources,
double  scratch_space_size,
std::map< std::string, std::string >  property_list = {},
std::map< std::string, std::string >  messagepayload_list = {} 
)

Constructor.

Parameters
hostnamethe name of the host on which the service should be started
compute_resourcesa map of <num_cores, memory> tuples, indexed by hostname, which represents the compute resources available to this service.
scratch_space_sizesize (in bytes) of the compute service's scratch storage paste
property_lista property list ({} means "use all defaults")
messagepayload_lista message payload list ({} means "use all defaults")

◆ BareMetalComputeService() [2/2]

wrench::BareMetalComputeService::BareMetalComputeService ( const std::string &  hostname,
const std::set< std::string >  compute_hosts,
double  scratch_space_size,
std::map< std::string, std::string >  property_list = {},
std::map< std::string, std::string >  messagepayload_list = {} 
)

Constructor.

Parameters
hostnamethe name of the host on which the service should be started
compute_hosts,:the names of the hosts available as compute resources (the service will use all the cores and all the RAM of each host)
scratch_space_sizesize (in bytes) of the compute service's scratch storage paste
property_lista property list ({} means "use all defaults")
messagepayload_lista message payload list ({} means "use all defaults")

The documentation for this class was generated from the following files:
  • /Users/rafsilva/Documents/isi/workspace/wrench/wrench/include/wrench/services/compute/bare_metal/BareMetalComputeService.h
  • /Users/rafsilva/Documents/isi/workspace/wrench/wrench/src/wrench/services/compute/bare_metal/BareMetalComputeService.cpp