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In this section we show alternative to time based attributes, using time triggers.

The following suite based generated variables are available for time based triggers.

(In ecflow_ui, select a suite, then look at the variables tab)

  • DD       day of the month
  • DOW   day of the week, 0-6, where 0 is sunday
  • DOY    day of the year
  • ECF_DATE  YYYYMMDD , year, month, day format. This has the same format as repeat date. 
  • MM     month 01-12
  • TIME  HHMM
  • YYYY  year

Here are examples of time attributes and the corresponding trigger examples

time 23:00                  # trigger TIME 2300
date 1.*.*                  # trigger DD ==1
day monday                  # trigger DOW ==1

Triggers can also use AND/OR logic. 

task t1
    day monday
    time 13:00
 task t1
    trigger DOW == 1 and TIME >= 1300

Text


Let us modify the previous definition file for family f2.
For brevity we have omitted the previous family f1


# 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 f2
     edit SLEEP 20
     task t1
     task t2
         trigger DOW == 4 and TIME >= 1300  
     task t3
         trigger DD == 1 and TIME >= 1200
     task t4
     task t5
         trigger TIME == 0002              # 2 minutes past midnight
 endfamily
endsuite

Python

For brevity we have left out family f1. In python this would be:

$HOME/course/test.py
import os
from ecflow import Defs,Suite,Family,Task,Edit,Trigger,Complete,Event,Meter,Time,Day,Date,Edit

def create_family_f2():
    return Family("f2",
            Edit(SLEEP=20),
            Task("t1"),     
            Task("t2", Trigger("DOW == 4 and TIME >= 1300")),
            Task("t3", Trigger("DD == 1 and TIME >= 1200")),   
            Task("t4"),                 
            Task("t5", Trigger("TIME == 0002")))                 # 2 minutes past midnight
 
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_f2()
            ))
print(defs) 

print("Checking job creation: .ecf -> .job0")  
print(defs.check_job_creation())

print("Checking trigger expressions")
errors = defs.check()
assert len(errors) == 0,errors

print("Saving definition to file 'test.def'")
defs.save_as_defs("test.def")

What to do

  1. Make the changes to the suite definition file
  2. Replace the suite
    python:  python3 test.py; python3 client.py
    text:       ecflow_client --suspend=/test  ;  ecflow_client --replace=/test  test.def
  3. ecflow_ui  has a special window to explain why a task is queued. Select a queued task and click on the 'Why tab'
  4. Vary the time triggers so that all task runs


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