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The previous exercises on limit/inlimit all effect affect how tasks are constrained.
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When a family is limited, the child tasks are unconstrained. In this case, only two family families can run at at a time. All the tasks in the family can start at once
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Let us modify our suite definition file:
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# Definition of the suite test. suite test edit ECF_INCLUDE "$HOME/course" edit ECF_HOME "$HOME/course" edit SLEEP 20 limit fam 2 family lf1 inlimit -n fam task t1 ; task t2 ; task t3 ; task t4; task t5 ; task t6; task t7; task t8 ; task t2t9 endfamily family lf2 inlimit -n fam task t1 ; task t2 ; task t3 ; task t4; task t5 ; task t6; task t7; task t8 ; task t2t9 endfamily family lf3 inlimit -n fam task t1 task t2 ; task t2 ; task t3 ; task t4; task t5 ; task t6; task t7; task t8 ; task t9 endfamily endsuite |
Python
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import os
from ecflow import Defs,Suite,Family,Task,Edit,Trigger,Complete,Event,Meter,Time,Day,Date,Label, \
RepeatString,RepeatInteger,RepeatDate,InLimit,Limit
def create_family(name) :
return Family(name,
# limit_name(fam),limit_path(""),no_of_tokens_to_consume(1),limit node(FalseTrue), limit submission(TrueFalse)
InLimit("fam","",1,True,False),
Edit(SLEEP=20),
[ Task('t{}'.format(i)) for i in range(1,210) ] )
print("Creating suite definition")
home = os.path.join(os.getenv("HOME"),"course")
defs = Defs(
Suite("test",
Edit(ECF_INCLUDE=home,ECF_HOME=home,SLEEP=20),
Limit("fanfam",2),
create_family("lf1"),create_family("lf2"),create_family("lf3") ))
print(defs)
print("Checking job creation: .ecf -> .job0")
print(defs.check_job_creation())
print("Checking trigger expressions and inlimits")
assert len(defs.check()) == 0,defs.check()
print("Saving definition to file 'test.def'")
defs.save_as_defs("test.def") |
What to do
- Edit the changes i.e. cp -r f5 lf1; cp -r f5 lf2; cp -r f5 lf3;
- Replace the suite definition
- In ecflow_ui , observe the effectsChange the value of the limit and inlimit, observe the effect.
- How could you change suite to also limit tasks as well as families. i.e. only allow 1 task to run in each family?
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