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I am trying to find the best way to prevent lower memory jobs from running on our host with the most memory. In our default queue, most of our systems have 256GB of ram. There is one host with 512GB of ram in the same queue, and I am wanting to prevent jobs that could run on a 256GB host from running on this system.
My first idea was to create a new queue and put the higher memory host in that queue, but I wanted to see if there was a way I could keep it in the same queue.
You can use LSF exclusive boolean resource feature, e.g. a boolean resource mem512 mapping to 512GB node. Any job doesn't explicitly specify this resource (e.g. bsub -R "mem512") will not be dispatched to 512GB node.