psyrun 0.7.0

Documentation

The documentation can be found here.

Overview

Define parameter spaces and evaluate them:

from psyrun import map_pspace, Param

def objective(a, b, c):
    return a * b + c

pspace = (Param(a=np.arange(1, 5))
          * Param(b=np.linspace(0, 1, 10))
          * Param(c=[1., 1.5, 10., 10.5]))
results = map_pspace(objective, pspace)

Or do it in parallel:

from psyrun import map_pspace_parallel
results = map_pspace_parallel(objective, pspace)

Define tasks by placing task_<name>.py files in the psy-tasks` directory:

from psyrun import Param

pspace = (Param(a=np.arange(1, 5))
          * Param(b=np.linspace(0, 1, 10))
          * Param(c=[1., 1.5, 10., 10.5]))

def execute(a, b, c):
    return {'result': a * b + c}

and run them by typing psy run with support for serial farming on high performance clusters.

Installation

pip install psyrun

To be able to use the NPZ store:

pip install numpy
pip install 'psyrun[npz]'

To be able to use the HDF5 store:

pip install numpy
pip install 'psyrun[h5]'

Requirements

• Python >=2.7, >=3.4

• six

0.7.0 (February 18, 2018)

New features

• Added support for the Slurm Workload Manager.

0.6.0

New features

• Add psy new-task and psy kill commands.

• Added AutodetectStore that determines the appropriate store from the filename extension.

• Added possibility to let psy merge custom stores if provided as psyrun.stores entry point.

• Added capability to set scheduler arguments based on the job name.

0.5.4

Bug fixes

• Fix the psy run continue functionality.

0.5.3

Bug fixes

• Fix psy status and psyrun.backend.distribute.DistributeBackend.get_missing trying to read incompatible data files in the output directory.

• Fix psy status and psyrun.backend.distribute.DistributeBackend.get_missing easily hitting Python’s recursion depth limit.

• Fix merging of npz files with missing integer values by converting them to float where np.nan can be used.

0.5.2

Bug fixes

• Fix incorrect psy status.

• Fix psy run <task1> <task2> ... not running all tasks and run them in order.

0.5.1

0.5

• Initial release