v0.7.1

:Date: Oct 15, 2020

Dependencies:

• psuti is now a required dependency. (#478 #491)

API additions:

• Executor updates:

  • Addition of a zero-resource worker option for persistent gens (does not allocate nodes to gen). (#500)
  • Multiple applications can be registered to the Executor (and submitted) by name. (#498)
  • Wait function added to Tasks. (#499)

• Gen directories can now be created with options analogous to those for sim dirs. (#349 / #489)

Other changes:

• Improve comms efficiency (Repack fields when NumPy version 1.15+). (#511)
• Fix multiprocessing error on macOS/Python3.8 (Use 'fork' instead of 'spawn'). (#502 / #503)

Updates to example functions:

• Allow APOSMM to trigger ensemble exit when condition reached. (#507)
• Improvement in how persistent APOSMM shuts down subprocesses (preventing PETSc MPI-abort). (#478)

Documentation:

• APOSMM Tutorial added. (#468)
• Writing guide for user functions added to docs (e.g., creating sim_f, gen_f, alloc_f). (#510)
• Addition of posters and presentations section to docs (inc. Jupyter notebooks/binder links). (#492 #497)

:Note:

• Tested platforms include Linux, MacOS, Theta (Cray XC40/Cobalt), Summit (IBM Power9/LSF), Bebop (Cray CS400/Slurm), and Bridges (HPE system at PSC).
• Cori (Cray XC40/Slurm) was not tested with release code due to system issues.
• Tested Python versions: (Cpython) 3.5, 3.6, 3.7, 3.8.

:Known issues:

• We currently recommend running in Central mode on Bridges, as distributed runs are experiencing hangs.
• OpenMPI does not work with direct MPI job launches in mpi4py comms mode, since it does not support nested MPI launches
  (Either use local mode or Balsam Executor).
• See known issues section in the documentation for more issues.