[Moabusers] Reservation creation issue

[Jerry Smith]

Prakash,

What do your nodes look like?  ie  # of procs

Do you want 1 proc on 5 differing nodes, or a set of nodes that total 5 
procs ( 3 nodes, 2procs on the first 2 and 1 on the 3rd ).




Jerry

Prakash Velayutham wrote:
> Hi,
>
> I have a cluster with Torque-2.1.8 and Moab-5.2.2
>
> I am having trouble creating reservations for specific number of
> processors (tasks). The system seems to always allocate the entire
> node in some cases. Here are 3 examples with contradictory results
> when I try to create reservations for 5 tasks (each task requiring 1
> processor).
>
> prakash at fructose:/tmp/openeye/suse_x86> /usr/local/moab/bin/mrsvctl -c
> -a user=='prakash' -R procs=1 -t 5 -F byname -E -n prakash -d 4:00:00:00
>
> NOTE:     reservation prakash.218 created
>
> prakash at fructose:/tmp/openeye/suse_x86> /usr/local/moab/bin/showres -v
> prakash.218
>
> ReservationID       Type S       Start         End    Duration    N/
> P    StartTime
>
> prakash.218         User -   -00:00:13  3:23:59:47  4:00:00:00
> 2/8    Thu May 29 11:19:47 2008
>
> 1 reservation located
>
>
> As you can see, it created reservations for 8 CPUs in this case,
> instead of the requested 5.
>
> Also,
>
> prakash at fructose:/tmp/openeye/suse_x86> /usr/local/moab/bin/mrsvctl -q
> prakash.218
>
> Diagnosing Reservations
> RsvID                      Type Par   StartTime     EndTime
> Duration Node Task Proc
> -----                      ---- ---   ---------     -------
> -------- ---- ---- ----
> prakash.218                User bas   -00:04:17  3:23:55:43
> 4:00:00:00    2    8    8
>      Flags: BYNAME,DEDICATEDRESOURCE,ISACTIVE,REQFULL
>      ACL:   RSV==prakash.218= USER==prakash+
>      CL:    RSV==prakash.218
>      Accounting Creds:  User:prakash
>      Task Resources: PROCS: 1
>      SubType=Other
>      Active PH: 0.00/0.59 (0.00%)
>
> WARNING:  rsv 'prakash.218' requires 5 task(s) but 8 allocated
>
> prakash at fructose:/tmp/openeye/suse_x86> /usr/local/moab/bin/showres -v
> -n
> reservations on Thu May 29 11:26:07
>
> NodeName        Type      ReservationID   JobState Task
> TaskResource       Start    Duration       StartTime
>
> bmi-smp1-01      Job             369514    Running    1 PROCS: 1  MEM:
> 900M    -1:17:07     6:00:00  Thu May 29 10:09:00 2008
>                   Job             369547    Running    1 PROCS: 1
> MEM: 900M   -00:01:18     1:00:00  Thu May 29 11:24:49 2008
>                   Job             369548    Running    1 PROCS: 1
> MEM: 900M   -00:01:16     1:00:00  Thu May 29 11:24:51 2008
>                   Job             369549    Running    1 PROCS: 1
> MEM: 900M   -00:01:11     1:00:00  Thu May 29 11:24:56 2008
> bmi-opt1-01      Job             368391    Running    1 PROCS: 1  MEM:
> 900M -1:12:01:38  3:18:00:00  Tue May 27 23:24:29 2008
> bmi-opt2-14      Job             368396    Running    1 PROCS: 1  MEM:
> 900M -1:12:01:38  3:18:00:00  Tue May 27 23:24:29 2008
> bmiwebd2        User        prakash.218        N/A    4     PROCS: 1
> -00:06:20  4:00:00:00  Thu May 29 11:19:47 2008
> bmi-xeon3-10    User        prakash.218        N/A    4     PROCS: 1
> -00:06:20  4:00:00:00  Thu May 29 11:19:47 2008
>
> 5 nodes reserved
>
> I have created a ticket with CR, but this is critical here and I would
> appreciate some inputs from the gurus out there if I am doing
> something wrong or not doing something that is required while creating
> a reservation.
>
> Prakash Velayutham
> Programmer / Analyst
> Cincinnati Children's Hospital Medical Center
>
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