Commit Graph

11 Commits

Author SHA1 Message Date
David Anderson b0cb81159f - client: when looking for new file xfers to start,
favor those that are partially done
- client: fix crashing bug if a project is detached
    while an RSS feed fetch for it is in progress
- code cleanup: switch from /// back to // for comments
    (so much for doxygen)

svn path=/trunk/boinc/; revision=21041
2010-04-01 05:54:29 +00:00
David Anderson cf638ae3a6 - client: instead of scheduling coproc jobs EDF:
- first schedule jobs projected to miss deadline in EDF order
    - then schedule remaining jobs in FIFO order
    This is intended to reduce the number of preemptions of coproc jobs,
    and hence (since they are always preempted by quit)
    to reduce the wasted time due to checkpoint gaps.
- client: the CPU scheduling policy made use of the number
    of deadline misses in various places.
    This should include only the deadline misses of CPU jobs.
    So move "deadlines_missed" from RR_SIM_STATUS and PROJECT
    to RSC_PROJECT_WORK_FETCH so that we have separate counts
    for CPU and coproc jobs, and use the count for CPU jobs.
- GUI RPC: removed the rr_sim_deadlines_missed field
    from project descriptor.
    This is no longer meaningful, and it didn't seem to be used anywhere.

svn path=/trunk/boinc/; revision=17785
2009-04-10 19:01:38 +00:00
David Anderson 9f170696a4 - client: code cleanup
svn path=/trunk/boinc/; revision=17100
2009-02-02 18:45:00 +00:00
David Anderson 6120b02306 - client: code cleanup
svn path=/trunk/boinc/; revision=17098
2009-02-02 05:15:12 +00:00
David Anderson 89188fca84 - client: there was a problem with how the round simulator
worked in the presence of coprocessors.
    The simulator maintained per-project queues of pending jobs.
    When a job finished (in the simulation) it would get
    one or more jobs from that project's pending queue.

    The problem: this could cause "holes" in the scheduling of GPUs,
    and produce an erroneous nonzero shortfall for GPUs,
    leading to infinite work fetch.

    The solution: maintain a separate (per-resource, not per--project)
    queue of pending coprocessor jobs.
    When a coprocessor job finishes,
    start pending jobs from the queue for that resource.

    Another change: the simulator did strict reservation of coprocessors.
    If there are 2 instances of CUDA,
    and a 1-instance job is running in the simulation,
    it wouldn't start an additional 2-instance job.
    This also can cause erroneous nonzero shortfalls.

    So instead, schedule coprocessors like CPUs, i.e. saturate them.
    This can cause distorted completion time estimates,
    but it's better than infinite work fetch.

svn path=/trunk/boinc/; revision=17093
2009-02-01 04:37:19 +00:00
David Anderson 8c591e31df - client: first whack at new work-fetch logic. Very preliminary.
svn path=/trunk/boinc/; revision=16754
2008-12-31 23:07:59 +00:00
David Anderson cd4ca5fb17 - client: fix calculation of a job's FLOPS rate in round-robin simulation
svn path=/trunk/boinc/; revision=16662
2008-12-09 20:01:01 +00:00
David Anderson fbb899f1c0 - client: in round-robin simulation, don't count a project in
total resource share if it has coproc jobs and no CPU jobs.

svn path=/trunk/boinc/; revision=16652
2008-12-08 23:00:23 +00:00
David Anderson 57639bdaae - client: in round-robin simulation, only increment CPU shortfall
(per-project or overall) if there are no pending tasks.
        This is needed when there are coproc (i.e. CUDA) jobs;
        CPUs may be idle because pending jobs are waiting for active jobs
        to release coprocs.
        In this situation the CPU idleness should not be counted as shortfall;
        otherwise (if there are only coproc jobs) there will always be a shortfall,
        and the client will fetch infinite work.

svn path=/trunk/boinc/; revision=16545
2008-11-24 18:57:04 +00:00
David Anderson 9987f9d245 - client: revise round-robin simulation to take variable avg_ncpus into account
svn path=/trunk/boinc/; revision=16366
2008-10-30 21:07:35 +00:00
David Anderson 2d1d47de15 - client: move round-robin simulation to its own file
- web: check for profile existence before trying to show it
- file deleter: add some debugging msgs

svn path=/trunk/boinc/; revision=16338
2008-10-28 21:59:25 +00:00