<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  </head>
  <body text="#000000" bgcolor="#FFFFFF">
    <p>I ask if you are specifying it, because if not, slurm will assume
      a job will use all the memory available.</p>
    <p>So without specifying, your big job gets allocated 100% of the
      memory so nothing could be sent to the node. Same if you don't
      specify for the little jobs. It would want 100%, but if anything
      is running there, 100% is not available as far as slurm is
      concerned.</p>
    <p>Brian<br>
    </p>
    <div class="moz-cite-prefix">On 11/1/2019 10:52 AM, c b wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAHsmwHowzMZsKFn4cWy5igz987h8ERdmG=5d9j_3YTOvz7QOKg@mail.gmail.com">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      <div dir="ltr">yes, there is enough memory for each of these jobs,
        and there is enough memory to run the high resource and low
        resource jobs at the same time.  </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr" class="gmail_attr">On Fri, Nov 1, 2019 at 1:37 PM
          Brian Andrus <<a href="mailto:toomuchit@gmail.com"
            moz-do-not-send="true">toomuchit@gmail.com</a>> wrote:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0px 0px 0px
          0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
          <div bgcolor="#FFFFFF">
            <p>Are you specifying memory for each of the jobs?</p>
            <p>Can't run a small job if there isn't enough memory
              available for it.</p>
            <p>Brian Andrus<br>
            </p>
            <div>On 11/1/2019 7:42 AM, c b wrote:<br>
            </div>
            <blockquote type="cite">
              <div dir="ltr">I have:
                <div>SelectType=select/cons_res<br>
                  SelectTypeParameters=CR_CPU_Memory<br>
                </div>
              </div>
              <br>
              <div class="gmail_quote">
                <div dir="ltr" class="gmail_attr">On Fri, Nov 1, 2019 at
                  10:39 AM Mark Hahn <<a
                    href="mailto:hahn@mcmaster.ca" target="_blank"
                    moz-do-not-send="true">hahn@mcmaster.ca</a>>
                  wrote:<br>
                </div>
                <blockquote class="gmail_quote" style="margin:0px 0px
                  0px 0.8ex;border-left:1px solid
                  rgb(204,204,204);padding-left:1ex">> In theory,
                  these small jobs could slip in and run alongside the
                  large jobs,<br>
                  <br>
                  what are your SelectType and SelectTypeParameters
                  settings?<br>
                  ExclusiveUser=YES on partitions?<br>
                  <br>
                  regards, mark hahn.<br>
                  <br>
                </blockquote>
              </div>
            </blockquote>
          </div>
        </blockquote>
      </div>
    </blockquote>
  </body>
</html>