Changelog

Parsl 0.3.1

This is a point release with mostly minor features and several bug fixes

  • Fixes for remote side handling
  • Support for specifying IPythonDir for IPP controllers
  • Several tests added that test provider launcher functionality from libsubmit
  • This upgrade will also push the libsubmit requirement from 0.2.4 -> 0.2.5.

Several critical fixes from libsubmit are brought in :

  • Several fixes and improvements to Condor from @annawoodard.
  • Support for Torque scheduler
  • Provider script output paths are fixed
  • Increased walltimes to deal with slow scheduler system
  • Srun launcher for slurm systems
  • SSH channels now support file_pull() method
    While files are not automatically staged, the channels provide support for bi-directional file transport.

Parsl 0.3.0

Here are the major changes that are included in the Parsl 0.3.0 release.

New functionality

  • Arguments to DFK has changed

    # Old
    dfk(executor_obj)
    
    # New, pass a list of executors
    dfk(executors=[list_of_executors])
    
    # Alternatively, pass the config from which the DFK will
    #instantiate resources
    dfk(config=config_dict)
    
  • Execution providers have been restructured to a separate repo: libsubmit

  • Bash app styles have changes to return the commandline string rather than be assigned to the special keyword cmd_line. Please refer to RFC #37 for more details. This is a non-backward compatible change.

  • Output files from apps are now made available as an attribute of the AppFuture. Please refer #26 for more details. This is a non-backward compatible change

    # This is the pre 0.3.0 style
    app_fu, [file1, file2] = make_files(x, y, outputs=['f1.txt', 'f2.txt'])
    
    #This is the style that will be followed going forward.
    app_fu = make_files(x, y, outputs=['f1.txt', 'f2.txt'])
    [file1, file2] = app_fu.outputs
    
  • DFK init now supports auto-start of IPP controllers

  • Support for channels via libsubmit. Channels enable execution of commands from execution providers either locally, or remotely via ssh.

  • Bash apps now support timeouts.

  • Support for cobalt execution provider.

Bug fixes

  • Futures have inconsistent behavior in bash app fn body #35
  • Parsl dflow structure missing dependency information #30

Parsl 0.2.0

Here are the major changes that are included in the Parsl 0.2.0 release.

New functionality

  • Support for execution via IPythonParallel executor enabling distributed execution.
  • Generic executors

Parsl 0.1.0

Here are the major changes that are included in the Parsl 0.1.0 release.

New functionality

  • Support for Bash and Python apps
  • Support for chaining of apps via futures handled by the DataFlowKernel.
  • Support for execution over threads.
  • Arbitrary DAGs can be constructed and executed asynchronously.

Bug Fixes

  • Initial release, no listed bugs.