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The proposed solution aims at making use of the already present project attribute in pbs_ifl and registering it to reservations by editing the reservation attribute XML. We then make changes accordingly to the reservation header file and add a link between the job and reservation project attribute. This attribute is available only to the server and is not a scheduler attribute.
Forum Link : http://community.pbspro.org/t/adding-a-project-attribute-to-reservations/1229