wrench::Workflow Class Reference

A workflow (to be executed by a WMS) More...

#include <Workflow.h>

Public Member Functions
	Workflow ()
	Constructor.
void	addControlDependency (WorkflowTask *src, WorkflowTask *dest, bool redundant_dependencies=false)
	Create a control dependency between two workflow tasks. Will not do anything if there is already a path between the two tasks. More...
WorkflowFile *	addFile (std::string, double)
	Add a new file to the workflow. More...
WorkflowTask *	addTask (std::string, double flops, unsigned long min_num_cores, unsigned long max_num_cores, double memory_requirement)
	Create and add a new computational task to the workflow. More...
void	exportToEPS (std::string)
	Output the workflow's dependency graph to EPS. More...
double	getCompletionDate ()
	Returns the workflow's completion date. More...
std::map< std::string, WorkflowTask * >	getEntryTaskMap () const
	Get the list of exit tasks of the workflow, i.e., those tasks that don't have parents. More...
std::vector< WorkflowTask * >	getEntryTasks () const
	Get the list of exit tasks of the workflow, i.e., those tasks that don't have parents. More...
std::map< std::string, WorkflowTask * >	getExitTaskMap () const
	Get the exit tasks of the workflow, i.e., those tasks that don't have children. More...
std::vector< WorkflowTask * >	getExitTasks () const
	Get the exit tasks of the workflow, i.e., those tasks that don't have children. More...
WorkflowFile *	getFileByID (const std::string &id)
	Find a WorkflowFile based on its ID. More...
std::map< std::string, WorkflowFile * >	getFileMap () const
	Get the list of all files in the workflow. More...
std::vector< WorkflowFile * >	getFiles () const
	Get the list of all files in the workflow. More...
std::map< std::string, WorkflowFile * >	getInputFileMap () const
	Retrieve the list of the input files of the workflow (i.e., those files that are input to some tasks but output from none) More...
std::vector< WorkflowFile * >	getInputFiles () const
	Retrieve the list of the input files of the workflow (i.e., those files that are input to some tasks but output from none) More...
unsigned long	getNumberOfTasks ()
	Get the number of tasks in the workflow. More...
unsigned long	getNumLevels ()
	Returns the number of levels in the workflow. More...
std::map< std::string, WorkflowFile * >	getOutputFileMap () const
	Retrieve a list of the output files of the workflow (i.e., those files that are output from some tasks but input to none) More...
std::vector< WorkflowFile * >	getOutputFiles () const
	Retrieve a list of the output files of the workflow (i.e., those files that are output from some tasks but input to none) More...
std::map< std::string, std::vector< WorkflowTask * > >	getReadyClusters ()
	Get a map of clusters composed of ready tasks. More...
std::vector< WorkflowTask * >	getReadyTasks ()
	Get a vector of ready tasks. More...
WorkflowTask *	getTaskByID (const std::string &id)
	Find a WorkflowTask based on its ID. More...
std::vector< WorkflowTask * >	getTaskChildren (const WorkflowTask *task)
	Get the list of children for a task. More...
std::map< std::string, WorkflowTask * >	getTaskMap ()
	Get the list of all tasks in the workflow. More...
long	getTaskNumberOfChildren (const WorkflowTask *task)
	Get the number of children for a task. More...
long	getTaskNumberOfParents (const WorkflowTask *task)
	Get the number of parents for a task. More...
std::vector< WorkflowTask * >	getTaskParents (const WorkflowTask *task)
	Get the list of parents for a task. More...
std::vector< WorkflowTask * >	getTasks ()
	Get the list of all tasks in the workflow. More...
std::vector< WorkflowTask * >	getTasksInTopLevelRange (unsigned long min, unsigned long max)
	Returns all tasks with top-levels in a range. More...
bool	isDone ()
	Returns whether all tasks are complete. More...
bool	pathExists (const WorkflowTask *src, const WorkflowTask *dst)
	Determine whether one source is an ancestor of a destination task. More...
void	removeControlDependency (WorkflowTask *src, WorkflowTask *dest)
	Remove a control dependency between tasks (does nothing if none) More...
void	removeFile (WorkflowFile *file)
	Remove a file from the workflow. WARNING: this method de-allocated memory_manager_service for the file, making any pointer to the file invalid. More...
void	removeTask (WorkflowTask *task)
	Remove a task from the workflow. WARNING: this method de-allocated memory_manager_service for the task, making any pointer to the task invalid. More...

Static Public Member Functions
static double	getSumFlops (const std::vector< WorkflowTask * > tasks)
	Get the total number of flops for a list of tasks. More...

Detailed Description

A workflow (to be executed by a WMS)

Member Function Documentation

addControlDependency()

void wrench::Workflow::addControlDependency	(	WorkflowTask *	src,
		WorkflowTask *	dst,
		bool	redundant_dependencies = false
	)

Create a control dependency between two workflow tasks. Will not do anything if there is already a path between the two tasks.

Parameters

src	the parent task
dst	the child task
redundant_dependencies	whether DAG redundant dependencies should be kept in the graph

Exceptions

std::invalid_argument

addFile()

WorkflowFile * wrench::Workflow::addFile	(	std::string	id,
		double	size
	)

Add a new file to the workflow.

Parameters

id	a unique string id
size	a file size in bytes

Returns

the WorkflowFile instance

Exceptions

std::invalid_argument

addTask()

WorkflowTask * wrench::Workflow::addTask	(	std::string	id,
		double	flops,
		unsigned long	min_num_cores,
		unsigned long	max_num_cores,
		double	memory_requirement
	)

Create and add a new computational task to the workflow.

Parameters

id	a unique string id
flops	number of flops
min_num_cores	the minimum number of cores required to run the task
max_num_cores	the maximum number of cores that can be used by the task (use INT_MAX for infinity)
memory_requirement	memory_manager_service requirement (in bytes)

Returns

the WorkflowTask instance

Exceptions

std::invalid_argument

exportToEPS()

void wrench::Workflow::exportToEPS

(

std::string

eps_filename

)

Output the workflow's dependency graph to EPS.

Parameters

eps_filename

a filename to which the EPS content is saved

getCompletionDate()

double wrench::Workflow::getCompletionDate

(

)

Returns the workflow's completion date.

Returns

a date in seconds (or a negative value If the workflow has not completed)

getEntryTaskMap()

std::map< std::string, WorkflowTask * > wrench::Workflow::getEntryTaskMap

(

)

const

Get the list of exit tasks of the workflow, i.e., those tasks that don't have parents.

Returns

A map of tasks indexed by their IDs

getEntryTasks()

std::vector< WorkflowTask * > wrench::Workflow::getEntryTasks

(

)

const

Get the list of exit tasks of the workflow, i.e., those tasks that don't have parents.

Returns

A vector of tasks

getExitTaskMap()

std::map< std::string, WorkflowTask * > wrench::Workflow::getExitTaskMap

(

)

const

Get the exit tasks of the workflow, i.e., those tasks that don't have children.

Returns

A map of tasks indexed by their IDs

getExitTasks()

std::vector< WorkflowTask * > wrench::Workflow::getExitTasks

(

)

const

Get the exit tasks of the workflow, i.e., those tasks that don't have children.

Returns

A vector of tasks

getFileByID()

WorkflowFile * wrench::Workflow::getFileByID

(

const std::string &

id

)

Find a WorkflowFile based on its ID.

Parameters

id	a string id

Returns

the WorkflowFile instance (or throws a std::invalid_argument if not found)

Exceptions

std::invalid_argument

getFileMap()

std::map< std::string, WorkflowFile * > wrench::Workflow::getFileMap

(

)

const

Get the list of all files in the workflow.

Returns

a map of files, indexed by file ID

getFiles()

std::vector< WorkflowFile * > wrench::Workflow::getFiles

(

)

const

Get the list of all files in the workflow.

Returns

a vector of files

getInputFileMap()

std::map< std::string, WorkflowFile * > wrench::Workflow::getInputFileMap

(

)

const

Retrieve the list of the input files of the workflow (i.e., those files that are input to some tasks but output from none)

Returns

a map of files indexed by file ID

getInputFiles()

std::vector< WorkflowFile * > wrench::Workflow::getInputFiles

(

)

const

Retrieve the list of the input files of the workflow (i.e., those files that are input to some tasks but output from none)

Returns

a vector of files

getNumberOfTasks()

unsigned long wrench::Workflow::getNumberOfTasks

(

)

Get the number of tasks in the workflow.

Returns

the number of tasks

getNumLevels()

unsigned long wrench::Workflow::getNumLevels

(

)

Returns the number of levels in the workflow.

Returns

the number of levels

getOutputFileMap()

std::map< std::string, WorkflowFile * > wrench::Workflow::getOutputFileMap

(

)

const

Retrieve a list of the output files of the workflow (i.e., those files that are output from some tasks but input to none)

Returns

a map of files indexed by ID

getOutputFiles()

std::vector< WorkflowFile * > wrench::Workflow::getOutputFiles

(

)

const

Retrieve a list of the output files of the workflow (i.e., those files that are output from some tasks but input to none)

Returns

a vector of files

getReadyClusters()

std::map< std::string, std::vector< WorkflowTask * > > wrench::Workflow::getReadyClusters

(

)

Get a map of clusters composed of ready tasks.

Returns

map of workflow cluster tasks

getReadyTasks()

std::vector< WorkflowTask * > wrench::Workflow::getReadyTasks

(

)

Get a vector of ready tasks.

Returns

a vector of tasks

getSumFlops()

double wrench::Workflow::getSumFlops ( const std::vector< WorkflowTask * >  tasks )

static

Get the total number of flops for a list of tasks.

Parameters

tasks

a vector of tasks

Returns

the total number of flops

getTaskByID()

WorkflowTask * wrench::Workflow::getTaskByID

(

const std::string &

id

)

Find a WorkflowTask based on its ID.

Parameters

id	a string id

Returns

a workflow task (or throws a std::invalid_argument if not found)

Exceptions

std::invalid_argument

getTaskChildren()

std::vector< WorkflowTask * > wrench::Workflow::getTaskChildren

(

const WorkflowTask *

task

)

Get the list of children for a task.

Parameters

task	a workflow task

Returns

a vector of tasks

getTaskMap()

std::map< std::string, WorkflowTask * > wrench::Workflow::getTaskMap

(

)

Get the list of all tasks in the workflow.

Returns

a map of tasks, indexed by ID

getTaskNumberOfChildren()

long wrench::Workflow::getTaskNumberOfChildren

(

const WorkflowTask *

task

)

Get the number of children for a task.

Parameters

task	a workflow task

Returns

a number of children

getTaskNumberOfParents()

long wrench::Workflow::getTaskNumberOfParents

(

const WorkflowTask *

task

)

Get the number of parents for a task.

Parameters

task	a workflow task

Returns

a number of parents

getTaskParents()

std::vector< WorkflowTask * > wrench::Workflow::getTaskParents

(

const WorkflowTask *

task

)

Get the list of parents for a task.

Parameters

task	a workflow task

Returns

a vector of tasks

getTasks()

std::vector< WorkflowTask * > wrench::Workflow::getTasks

(

)

Get the list of all tasks in the workflow.

Returns

a vector of tasks

getTasksInTopLevelRange()

std::vector< WorkflowTask * > wrench::Workflow::getTasksInTopLevelRange	(	unsigned long	min,
		unsigned long	max
	)

Returns all tasks with top-levels in a range.

Parameters

min	the low end of the range (inclusive)
max	the high end of the range (inclusive)

Returns

a vector of tasks

isDone()

bool wrench::Workflow::isDone

(

)

Returns whether all tasks are complete.

Returns

true or false

pathExists()

bool wrench::Workflow::pathExists	(	const WorkflowTask *	src,
		const WorkflowTask *	dst
	)

Determine whether one source is an ancestor of a destination task.

Parameters

src	the source task
dst	the destination task

Returns

true if there is a path from src to dst, false otherwise

removeControlDependency()

void wrench::Workflow::removeControlDependency	(	WorkflowTask *	src,
		WorkflowTask *	dst
	)

Remove a control dependency between tasks (does nothing if none)

Parameters

src	the source task
dst	the destination task

removeFile()

void wrench::Workflow::removeFile

(

WorkflowFile *

file

)

Remove a file from the workflow. WARNING: this method de-allocated memory_manager_service for the file, making any pointer to the file invalid.

Parameters

file

a file

Exceptions

std::invalid_argument

removeTask()

void wrench::Workflow::removeTask

(

WorkflowTask *

task

)

Remove a task from the workflow. WARNING: this method de-allocated memory_manager_service for the task, making any pointer to the task invalid.

Parameters

task

a task

Exceptions

std::invalid_argument

---

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

• Workflow.h
• Workflow.cpp