parsl.providers.provider_base.ExecutionProvider

class parsl.providers.provider_base.ExecutionProvider

Execution providers are responsible for managing execution resources that have a Local Resource Manager (LRM). For instance, campus clusters and supercomputers generally have LRMs (schedulers) such as Slurm, Torque/PBS, Condor and Cobalt. Clouds, on the other hand, have API interfaces that allow much more fine-grained composition of an execution environment. An execution provider abstracts these types of resources and provides a single uniform interface to them.

The providers abstract away the interfaces provided by various systems to request, monitor, and cancel compute resources.

                      +------------------
                      |
script_string ------->|  submit
     id      <--------|---+
                      |
[ ids ]       ------->|  status
[statuses]   <--------|----+
                      |
[ ids ]       ------->|  cancel
[cancel]     <--------|----+
                      |
                      +-------------------

__init__()

Initialize self. See help(type(self)) for accurate signature.

Methods

__init__()	Initialize self.
cancel(job_ids)	Cancels the resources identified by the job_ids provided by the user.
status(job_ids)	Get the status of a list of jobs identified by the job identifiers returned from the submit request.
submit(command, tasks_per_node[, job_name])	The submit method takes the command string to be executed upon instantiation of a resource most often to start a pilot (such as IPP engine or even Swift-T engines).

Attributes

cores_per_node	Number of cores to provision per node.
label	Provides the label for this provider
mem_per_node	Real memory to provision per node in GB.
status_polling_interval	Returns the interval, in seconds, at which the status method should be called.