Re: [HTCondor-users] setting up dedicated pool for parallel universe

[Kodanda Ram Mangipudi <kodanda@xxxxxxxxx>]

Dear Greg and Ivo,

Dynamic partitioning seems to do the job. Thank a lot for the help!

Best regards,

Kodanda

On Fri, 28 Dec 2018 at 22:12, Greg Thain <gthain@xxxxxxxxxxx> wrote:

On 12/28/18 10:21 AM, Kodanda Ram Mangipudi wrote:
> Dear Ivo,
>
> Thanks for writing. I started with simple condor and vanilla univ. I
> have used the attached job submission script and the shell script
> calling an MPI program vasp.
> The job runs but uses only one slot. What is the right way to run this?


I think you are on the right track. If you want your MPI job to run on
multiple cores all on the same machine, you want it to run in a single
slot that has multiple cores. To do this, you'll want to add a

Request_cpus = 12

to your submit file if you want 12 cores, and configure your start to
allow multiple cpu slots. To do this with partitionable slots, add the
following to you worker node config:

NUM_SLOTS = 1
NUM_SLOTS_TYPE_1 = 1
SLOT_TYPE_1 = cpus=100%
SLOT_TYPE_1_PARTITIONABLE = true


And then your condor job will be provisioned with 12 cores.


-greg

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