looping on a specific value. You can do that by defining a repeat attribute.
You can iterate over sequences of:
- strings
- integers
- dates
- arbitrary list of dates
A sequence of integers or dates is created by specifying the
first and last element, with an optional increment (the default is one).
An ecFlow variable, whose name corresponds to the name of the repeat,
will be generated. This can be used in scripts or trigger expressions.
Repeat with day/date
The behaviour of day/date attribute under a repeat has changed from ecflow 4.0. Take the example below.
In ecflow 4.0, if task t1 took longer than 1 hour task t2 would not run.
In ecflow 5.0, once the day monday is free on family f1, its stays free until the automatic re-queue caused by the parent repeat. The net effect being that task t2 will still run, even if we have strayed into Tuesday.
suite s1
family f
repeat integer rep 0 1
family f1
day monday
time 23:00
task t1
task t2
trigger t1 == complete
...
Ecf Script
We will add a new task /test/f4/f5/t1.
Create new ecf script file $HOME/course/test/f4/f5/t1.ecf to use these variables.
$HOME/course/test/f4/f5/t1.ecf
%include <head.h> ecflow_client --label=info "My name is '%NAME%' " " My value is '%VALUE%' " " My date is '%DATE%' " # Note the use of repeat date generated variables DATE_YYYY, DATE_MM, DATE_DD, DATE_DOW to automatically reference year,month,day of the month,day of the week # These can also be used in trigger expression. ecflow_client --label=date "year(%DATE_YYYY%) month(%DATE_MM%) day of month(%DATE_DD%) day of week(%DATE_DOW%)" sleep %SLEEP% %include <tail.h>
Text
Let us modify the suite definition file again
# Definition of the suite test.
suite test
edit ECF_INCLUDE "$HOME/course"
edit ECF_HOME "$HOME/course"
family f4
edit SLEEP 2
repeat string NAME a b c d e f
family f5
repeat integer VALUE 1 10
task t1
repeat date DATE 20101230 20110105
label info ""
label date ""
endfamily
endfamily
endsuite
Python
$HOME/course/test.py
import os
from ecflow import Defs,Suite,Family,Task,Edit,Trigger,Complete,Event,Meter,Time,Day,Date,Label, \
RepeatString,RepeatInteger,RepeatDate
def create_family_f4():
return Family("f4",
Edit(SLEEP=2),
RepeatString("NAME", ["a", "b", "c", "d", "e", "f" ]),
Family("f5",
RepeatInteger("VALUE", 1, 10),
Task("t1",
RepeatDate("DATE", 20101230, 20110105),
Label("info",""),
Label("date",""))))
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_f4()))
print(defs)
print("Checking job creation: .ecf -> .job0")
print(defs.check_job_creation())
print("Checking trigger expressions")
assert len(defs.check()) == 0,defs.check()
print("Saving definition to file 'test.def'")
defs.save_as_defs("test.def")
What to do
- Type in the changes
- Replace the suite definition
- How many times will /test/f4/f5/t1 run?
- In ecflow_ui , try to modify the values of a repeat
- Since we are using 2 second delay, remember to use f5(refresh) to see the intermediate values. The default is to refresh every 60 seconds.