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#!/usr/bin/env python
#
# pyFlow - a lightweight parallel task engine
#
# Copyright (c) 2012-2017 Illumina, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
# WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
#
import os.path
import sys
# add module path by hand
#
scriptDir = os.path.abspath(os.path.dirname(__file__))
sys.path.append(scriptDir + "/../../src")
from pyflow import WorkflowRunner
#
# very simple task scripts called by the demo:
#
testJobDir = os.path.join(scriptDir, "testtasks")
sleepjob = os.path.join(testJobDir, "sleeper.bash") # sleeps
# all pyflow workflows are written into classes derived from
# pyflow.WorkflowRunner:
#
class MutexWorkflow(WorkflowRunner) :
# a workflow is defined by overloading the
# WorkflowRunner.workflow() method:
#
def workflow(self) :
# create an array of mutex restricted tasks which can only run
# once at a time:
for i in range(8) :
self.addTask("mutex_task_" + str(i), sleepjob + " 1", mutex="test")
# and add an array of 'normal' tasks for comparison:
for i in range(16) :
self.addTask("normal_task_" + str(i), sleepjob + " 1")
def main() :
# Instantiate the workflow
wflow = MutexWorkflow()
# Run the worklow:
retval = wflow.run(mode="local", nCores=6)
sys.exit(retval)
if __name__ == "__main__" :
main()
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