Have a better control of low memory jobs when dynamic priority is high due to higher fairshare in hierarchical FS tree

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In hierarchical user based fairshare where there is multiple level of user groups and when fairshare is applied in higher levels the low memory jobs in the user groups which has higher fairshare in higher level gets scheduled continuously making higher pend times for higher memory jobs from same user groups or user groups . This is because the dynamic priority in the higher level is high and user groups under this can take advantage of this and there is no useful parameter in the dynamic priority to control this behavior. The low memory jobs fills up the job slots which ever is available and thus brings down the dynamic priority which adds up to the issue as even if a high memory slot is available there will be enough low memory jobs already running and which has brought down the dynamic priority in multiple levels .

Looking for a parameter to dynamically control this behavior of any user group / user taking advantage of the higher dynamic priority in higher levels to push the low memory jobs and making the high memory jobs starve for ever .

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Have a better control of low memory jobs when dynamic priority is high due to higher fairshare in hierarchical FS tree