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Sorry, I got the project name wrong for cloud aware scheduler … it is Synergy (not Symphony). The description is at http://indico4.twgrid.org/indico/event/1/session/22/contribution/4.pdf, also part of the EU Indigo Datacloud project.

Tim

On 09/06/16 07:28, "Tim Bell" <Tim.Bell at cern.ch> wrote:

>Sorry I was not able to make it. To clarify on Blazar for CERN (http://eavesdrop.openstack.org/meetings/scientific_wg/2016/scientific_wg.2016-06-08-06.59.log.html), we’re interested in the overall problem of how to maximize the utilization of the resources in the private cloud rather than a specific project at the moment. 
>
>There seem to be a variety of approaches from pre-emptible VMs (https://github.com/indigo-dc/opie) to a cloud aware scheduler with a queue (i.e. do not return No Host Found but wait and retry) such as Symphony or some of the ongoing work with HTCondor.
>
>Overall, we are trying to find a way to ensure the cloud is
>
>- Always busy by using any additional resources available for low SLA activities
>- Elastic by using the low SLA resources as a buffer
>
>Blazar may be a base to build this functionality on but my current understanding is that the reservations are somewhat static (i.e. reserve me X instances at time Y).
>
>I’d be very interested to hear how others see this problem.
>
>Tim
>
>On 08/06/16 03:27, "Blair Bethwaite" <blair.bethwaite at gmail.com> wrote:
>
>>Hi all,
>>
>>Quick reminder that the scientific-wg IRC weekly meeting is on in <6
>>hours in #openstack-meeting! Details below.
>>
>>We're planning to talk about status and use-cases for Blazar, plus
>>continued discussion/brain-storming on use-cases pertaining to our
>>focus areas. On the latter point this review from the UX team on
>>personas seems like something we should stick our oar into.
>>
>>See http://eavesdrop.openstack.org/#Scientific_Working_Group for
>>meeting details, agenda at
>>https://wiki.openstack.org/wiki/Scientific_working_group#IRC_Meeting_June_8th_2016.
>>
>>-- 
>>Cheers,
>>~Blairo
>>
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>
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