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feat: move submission policies to WMS Utilities
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63 changes: 63 additions & 0 deletions
63
src/DIRAC/WorkloadManagementSystem/Utilities/SubmissionPolicy.py
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from abc import ABC, abstractmethod | ||
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from DIRAC.WorkloadManagementSystem.Client.MatcherClient import MatcherClient | ||
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class SubmissionPolicy(ABC): | ||
"""Abstract class to define a submission strategy.""" | ||
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@abstractmethod | ||
def apply(self, availableSlots: int, queueName: str, queueInfo: dict[str, str], vo: str) -> int: | ||
"""Method to redefine in the concrete subclasses | ||
:param availableSlots: slots available for new pilots | ||
:param queueName: the name of the targeted queue | ||
:param queueInfo: a dictionary of attributes related to the queue | ||
:param vo: VO | ||
""" | ||
pass | ||
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class AgressiveFillingPolicy(SubmissionPolicy): | ||
def apply(self, availableSlots: int, queueName: str, queueInfo: dict[str, str], vo: str) -> int: | ||
"""All the available slots should be filled up. | ||
Should be employed for sites that are always processing jobs. | ||
* Pros: would quickly fill up a queue | ||
* Cons: would consume a lot of CPU hours for nothing if pilots do not match jobs | ||
""" | ||
return availableSlots | ||
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class WaitingSupportedJobsPolicy(SubmissionPolicy): | ||
def __init__(self) -> None: | ||
super().__init__() | ||
self.matcherClient = MatcherClient() | ||
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def apply(self, availableSlots: int, queueName: str, queueInfo: dict[str, str], vo: str) -> int: | ||
"""Fill up available slots only if waiting supported jobs exist. | ||
Should be employed for sites that are used from time to time (targeting specific Task Queues). | ||
* Pros: submit pilots only if necessary, and quickly fill up the queue if needed | ||
* Cons: would create some unused pilots in all the sites supervised by this policy and targeting a same task queue | ||
""" | ||
# Prepare CE dictionary from the queue info | ||
ce = queueInfo["CE"] | ||
ceDict = ce.ceParameters | ||
ceDict["GridCE"] = queueInfo["CEName"] | ||
if vo: | ||
ceDict["Community"] = vo | ||
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# Get Task Queues related to the CE | ||
result = self.matcherClient.getMatchingTaskQueues(ceDict) | ||
if not result["OK"]: | ||
return 0 | ||
taskQueueDict = result["Value"] | ||
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# Get the number of jobs that would match the capability of the CE | ||
waitingSupportedJobs = 0 | ||
for tq in taskQueueDict.values(): | ||
waitingSupportedJobs += tq["Jobs"] | ||
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# Return the minimum value between the number of slots available and supported jobs | ||
return min(availableSlots, waitingSupportedJobs) |