Local

class lsst.ctrl.bps.parsl.sites.Local(config: BpsConfig, add_resources: bool = False)

Bases: SiteConfig

Configuration for running jobs on the local machine.

The number of cores to use is specified in the site configuration, under site.<computeSite>.cores (int).

Methods Summary

from_config(config)

Get the site configuration nominated in the BPS config.

get_address()

Return the IP address of the machine hosting the driver/submission.

get_command_prefix()

Return command(s) to add before each job command.

get_executors()

Get a list of executors to be used in processing.

get_monitor()

Get parsl monitor.

get_parsl_config()

Get Parsl configuration for this site.

get_site_subconfig(config)

Get BPS configuration for the site of interest.

select_executor(job)

Get the label of the executor to use to execute a job.

Methods Documentation

classmethod from_config(config: BpsConfig) SiteConfig

Get the site configuration nominated in the BPS config.

The computeSite (str) value in the BPS configuration is used to select a site configuration. The site configuration class to use is specified by the BPS configuration as site.<computeSite>.class (str), which should be the fully-qualified name of a python class that inherits from SiteConfig.

Parameters:
configBpsConfig

BPS configuration.

Returns:
site_configsubclass of SiteConfig

Site configuration.

get_address() str

Return the IP address of the machine hosting the driver/submission.

This address should be accessible from the workers. This should generally by the return value of one of the functions in parsl.addresses.

This is used by the default implementation of get_monitor, but will generally be used by get_executors too.

This default implementation gets the address from the hostname, but that will not work if the workers don’t access the driver/submission node by that address.

get_command_prefix() str

Return command(s) to add before each job command.

These may be used to configure the environment for the job.

This default implementation respects the BPS configuration elements:

  • site.<computeSite>.commandPrefix (str): command(s) to use as a prefix to executing a job command on a worker.

  • site.<computeSite>.environment (bool): add bash commands that replicate the environment on the driver/submit machine?

get_executors() list[parsl.executors.base.ParslExecutor]

Get a list of executors to be used in processing.

Each executor should have a unique label.

get_monitor() MonitoringHub | None

Get parsl monitor.

The parsl monitor provides a database that tracks the progress of the workflow and the use of resources on the workers.

This implementation respects the BPS configuration elements:

  • site.<computeSite>.monitorEnable (bool): enable monitor?

  • site.<computeSite>.monitorInterval (float): time interval (sec) between logging of resource usage.

  • site.<computeSite>.monitorFilename (str): name of file to use for the monitor sqlite database.

Returns:
monitorMonitoringHub or None

Parsl monitor, or None for no monitor.

get_parsl_config() Config

Get Parsl configuration for this site.

Subclasses can overwrite this method to build a more specific Parsl configuration, if required.

The retries are set from the site.<computeSite>.retries value found in the BPS configuration file.

Returns:
configparsl.config.Config

The configuration to be used for Parsl.

static get_site_subconfig(config: BpsConfig) BpsConfig

Get BPS configuration for the site of interest.

We return the BPS sub-configuration for the site indicated by the computeSite value, which is site.<computeSite>.

Parameters:
configBpsConfig

BPS configuration.

Returns:
siteBpsConfig

Site sub-configuration.

select_executor(job: ParslJob) str

Get the label of the executor to use to execute a job.

Parameters:
jobParslJob

Job to be executed.

Returns:
labelstr

Label of executor to use to execute job.