<html>
  <head>

    <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  </head>
  <body text="#000000" bgcolor="#FFFFFF">
    <div dir="ltr">
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif"><br>
      </div>
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif">I am relatively
        new to SLURM, and am having difficulty configuring our
        scheduling to behave as we'd like.</div>
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif"><br>
      </div>
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif">Partition based
        job preemption is configured as follows:<br>
      </div>
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif"><br>
      </div>
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif">PreemptType=preempt/partition_prio<br>
        PreemptMode=suspend,gang<br>
      </div>
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif"><br>
      </div>
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif">This has been
        working fine. However, we recently added an older server to the
        cluster, and tried to give it a higher weight than our other
        servers, with the intent that it would only used when resources
        on other lower-weighted nodes are unavailable. What seems to
        happen, though, is that a newly submitted job will
        preempt/suspend a lower-priority job on a lower-weighted node
        before running on the higher-weighted node. What we would like
        is for preemption to only occur when no resources are available.</div>
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif"><br>
      </div>
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif">Is this possible?</div>
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif"><br>
      </div>
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif">Thanks,</div>
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif"><br>
      </div>
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif">Mike Harvey</div>
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif">Systems
        Administrator</div>
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif">Bucknell
        University</div>
      <div class="gmail_default"
        style="font-family:arial,helvetica,sans-serif"><a
          href="mailto:harvey@bucknell.edu" moz-do-not-send="true">harvey@bucknell.edu</a></div>
    </div>
  </body>
</html>