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The condition can be signalled by an event. For example, event t2:b
might indicate that task t2 did not manage to produce the expected result, so
we do not need to run task t4.
complete rather than running it.
the task will set itself complete.
complete expression evaluation takes precedence over the trigger.
Completes can be between tasks, between families, or both.
It can be used in conjunction with a trigger. For example:
Text
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# Definition of the suite test.
suite test
edit ECF_INCLUDE "$HOME/course" # replace '$HOME' with the path to your home directory
edit ECF_HOME "$HOME/course"
family f1
edit SLEEP 20
task t1
task t2
trigger t1 eq complete # task t2 will only start when task t1 is complete
event a # task t2 will set an event a
event b # task t2 will set an event b
task t3
trigger t2:a # task t3 will start when event a is set in task t2
task t4
trigger t2 eq complete # task t4 will start when task t2 is complete
complete t2:b # task t4 will complete if event b is set in task t2
endfamily
endsuite |
Python
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import os
from ecflow import Defs,Suite,Family,Task,Edit,Trigger,Complete,Event
def create_family_f1():
return Family("f1",
Edit(SLEEP= 20),
Task("t1"),
Task("t2",
Trigger("t1 == complete"),
Event("a"),
Event("b")),
Task("t3",
Trigger("t2:a")),
Task("t4",
Trigger("t2 == complete"),
Complete("t2:b")))
print("Creating suite definition")
home = os.path.join(os.getenv("HOME"), "course")
defs = Defs(
Suite("test",
Edit(ECF_INCLUDE=home,ECF_HOME=home),
create_family_f1()))
print(defs)
print("Checking job creation: .ecf -> .job0")
print(defs.check_job_creation())
print("Saving definition to file 'test.def'")
defs.save_as_defs("test.def") |
What to do
- Update test.def or test.py to add a complete expression to task t4
- Replace the suite
python: python python3 test.py; python python3 client.py
text: ecflow_client --suspend=/test ; ecflow_client --replace=/test test.def - Observe the tasks in ecflow_ui
- See the triggers by selecting t4
- See the trigger relation by clicking on the arrow
- See the triggers in the tree, using the Show menu
- Note the icon indicating that the task has not run
- You can To check the triggers modify task t2 to check that so that event b is not triggered; task t4 will should run when the event is not set t2 completes.
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