poolmanager

Simple pool manager implementation for unordered results

poolmanager is compatible with python 2.6, 2.7, 3.6 and 3.7

Usage

ctrl+c will automatically terminate the main process and thus all the associated subprocesses. You'll need to wait for all the functions to finish their current execution before being able to stop all the processes. One can also easily create a callback function to monitor the computation state.

from poolmanager import PoolManager

def add(x):
    return x + 1.5

def callback(counter, result):
    print 'counter: %s' % counter
    print 'result: %s' % result

def main():
    chunk = 2
    iterator = xrange(0, 10)
    pm = PoolManager(numProcs=2, factor=2, store=True)
    pm.imap_unordered(add, iterator, chunk, callback=callback)

if __name__ == '__main__':
    main()

>> counter: 1
>> result: 1.5
>> counter: 2
>> result: 2.5
>> counter: 3
>> result: 5.5
>> counter: 4
>> result: 6.5
>> counter: 5
>> result: 7.5
>> counter: 6
>> result: 8.5
>> counter: 7
>> result: 3.5
>> counter: 8
>> result: 4.5
>> counter: 9
>> result: 9.5
>> counter: 10
>> result: 10.5

print [i for i in iterator]
print pm.results

>> [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>> [1.5, 2.5, 5.5, 6.5, 7.5, 8.5, 3.5, 4.5, 9.5, 10.5]

Tests

python setup.py test

Publish a new version of the module

Edit $HOME/.pypirc and add (username and password in keepass):

[distutils]
index-servers =
  pypi
  pypitest

[pypi]
repository=https://upload.pypi.org/legacy/
username=iwi***
password=

[pypitest]
repository=https://test.pypi.org/legacy/
username=iwi***
password=

Bump version in setup.py.

Upload the new module to the test repository:

pip install --upgrade setuptools
python setup.py sdist upload -r pypitest
python setup.py bdist_wheel upload -r pypitest

Test local install from test repository.

pip install -i https://test.pypi.org/simple/ poolmanager

If everything is ok, push the new version to the default repository.

python setup.py sdist upload -r pypi
python setup.py bdist_wheel upload -r pypi

Test the newly created module.

Create a RELEASE in github.

CONTRIBUTORS:

• Gilber Jeiziner
• Loïc Gasser