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cron
Cron dependencies can be specified using the cron keyword. Cron differs from time as when the node is complete it queues again immediately. Cron also only works with a real time clock (not a hybrid clock).
| Code Block |
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cron 23:00 # every day at 23:00 cron 08:00 12:00 01:00 # every hour between 8 and 12 cron -w 0,2 11:00 # every sunday and tuesday cron -d 1,15 02:00 # every 1st and 15th of each month cron -m 1 -d 1 03:00 # every first of January |
A task can have several time and date dependencies. For example:
| Code Block |
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day sunday day wednesday date 01.*.* # The first of every month and year date 10.*.* # The tenth of every month and year time 01:00 time 16:00 |
The task will run on sunday’s and wednesday’s at 1am and 4pm, but only if the day is the 1st or the 10th of the month.
Like trigger‘s, date and time dependencies can be set for a family. In this case, the tasks of this family will only run according to these dependencies.
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Python
For brevity we have left out family f1. In python this would be:
#!/usr/bin/env python2.7
import os
import ecflow
def create_family_f2():
f2 = ecflow.Family("f2")
f2.add_variable("SLEEP", 20)
f2.add_task("t1").add_time( "00:30 23:30 00:30" ) # start(hh:mm) end(hh:mm) increment(hh:mm)
f2.add_task("t2").add_day( "sunday" )
# for add_date(): day,month,year; here 0 means every month, and every year
t3 = f2.add_task("t3")
t3.add_date(1, 0, 0) # day month year, first of every month or every year
t3.add_time( 12, 0 ) # hour, minutes at 12 o'clock
f2.add_task("t4").add_time( 0, 2, True ) # hour, minutes, relative to suite start
# 2 minutes after family f2 start
f2.add_task("t5").add_time( 0, 2 ) # hour, minutes suite site
# 2 minutes past midnight
return f2
print "Creating suite definition"
defs = ecflow.Defs()
suite = defs.add_suite("test")
suite.add_variable("ECF_INCLUDE", os.path.join(os.getenv("HOME"), "course"))
suite.add_variable("ECF_HOME", os.path.join(os.getenv("HOME"), "course"))
suite.add_family( create_family_f1() )
suite.add_family( create_family_f2() )
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
- Make the changes to the suite definition file
- Create all the necessary ecf script‘s by copying the one from /test/f1/t7
- Load and begin the suite
- ecflow_ui has a special window to explain why a task is queued. Select a queued task and press the
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