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Is there a way to set an order to which nodes are picked first or a weight system?  We want certain nodes to be chosen first because they are faster, or have less memory or other such criteria.


Reservations

What if you know certain nodes will be unavailable for a window of time say the second week of next month.  Is there a way to schedule that in advance in HTCondor?

Bug: All on one core

  • Bug where James's jobs are all put on the same core.  Here is top -u krowe showing the Last Used Cpu (SMP) after I submitted five sleep jobs to the same host.
    • Is this just a side effect of condor using cpuacct instead of cpuset in cgroup?
    • Is this a failure of the Linux kernel to schedule things on separate cores?
    • Is this because cpu.shares is set to 100 instead of 1024?
    • Check if CPU affinity is set in /proc/self/status
    • Is sleep cpu-intensive enough to properly test this?  Perhaps submit a while 1 loop instead?

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