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Begin parallelizing object prepare and run.

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This commit is contained in:
Darko Poljak 2016-12-06 14:27:17 +01:00
parent 609977b7ff
commit 6c1b215db8
1 changed files with 33 additions and 10 deletions
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33
cdist/config.py
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@ -27,6 +27,7 @@ import time
import itertools
import tempfile
import socket
import concurrent.futures
import cdist
import cdist.hostsource
@ -265,13 +266,14 @@ class Config(object):
else:
yield cdist_object
def iterate_once(self):
def iterate_once_parallel(self):
"""
Iterate over the objects once - helper method for
iterate_until_finished
"""
objects_changed = False
cargo = []
for cdist_object in self.object_list():
if cdist_object.requirements_unfinished(cdist_object.requirements):
"""We cannot do anything for this poor object"""
@ -280,17 +282,37 @@ class Config(object):
if cdist_object.state == core.CdistObject.STATE_UNDEF:
"""Prepare the virgin object"""
self.object_prepare(cdist_object)
# self.object_prepare(cdist_object)
# objects_changed = True
cargo.append(cdist_object)
if cargo:
with concurrent.futures.ProcessPoolExecutor(self.jobs) as executor:
for x in executor.map(self.object_prepare, cargo):
pass # returns None
objects_changed = True
cargo.clear()
for cdist_object in self.object_list():
if cdist_object.requirements_unfinished(cdist_object.requirements):
"""We cannot do anything for this poor object"""
continue
if cdist_object.state == core.CdistObject.STATE_PREPARED:
if cdist_object.requirements_unfinished(cdist_object.autorequire):
"""The previous step created objects we depend on -
wait for them
"""
continue
if cdist_object.state == core.CdistObject.STATE_PREPARED:
self.object_run(cdist_object)
# self.object_run(cdist_object)
# objects_changed = True
cargo.append(cdist_object)
if cargo:
with concurrent.futures.ProcessPoolExecutor(self.jobs) as executor:
for x in executor.map(self.object_run, cargo):
pass # returns None
objects_changed = True
return objects_changed
@ -304,7 +326,8 @@ class Config(object):
objects_changed = True
while objects_changed:
objects_changed = self.iterate_once()
if self.jobs:
objects_changed = self.iterate_once_parallel()
# Check whether all objects have been finished
unfinished_objects = []