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Sometimes waiting for the completion of a task is not good enough.
If a task is producing several results, another task may start as
soon as the first results are ready.
For that, ecFlow introduces the concept of event‘s.
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Python
#!/usr/bin/env python2.7
import os
import ecflow
def create_family_f1():
f1 = ecflow.Family("f1")
f1.add_variable("SLEEP", 20)
f1.add_task("t1")
t2 = f1.add_task("t2")
t2.add_trigger("t1 eq complete")
t2.add_event("a")
t2.add_event("b")
f1.add_task("t3").add_trigger("t2:a")
f1.add_task("t4").add_trigger("t2:b")
return f1
print "Creating suite definition"
defs = ecflow.Defs()
suite = defs.add_suite("test")
suite.add_variable("ECF_INCLUDE", os.getenv("HOME") + "/course")
suite.add_variable("ECF_HOME", os.getenv("HOME") + "/course")
suite.add_family( create_family_f1() )
print defs
print "Checking job creation: .ecf -> .job0"
print defs.check_job_creation()
print "Checking trigger expressions"
print defs.check()
print "Saving definition to file 'test.def'"
defs.save_as_defs("test.def")
What to do
- Update test.def or test.py
- Edit t2.ecf to call ecflow_client –event.
- Copy t1.ecf to t3.ecf and t4.ecf
- Replace the suite
- Observe the tasks in ecflowview.
- See the triggers by selecting t3 and clicking on the icon
- See the triggers by selecting t2 and click on Dependencies
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