Open Stack

Hi,
New to this list,  I would like to attend any HPC oriented meetings or presentation there may be in Vancouver.
If to attend, some confirmation needs to be sent, please advise.

I've been tasked to look into the provision of cluster with large node count.  So far many ideas to make it happen.
But I'm still learning my way around OpenStack.  I'll be able to provide more details as a measure of success is achieved.

Regards,
Donald Villeneuve

-----Original Message-----
From: openstack-hpc-request at lists.openstack.org [mailto:openstack-hpc-request at lists.openstack.org] 
Sent: Thursday, April 16, 2015 10:36 PM
To: openstack-hpc at lists.openstack.org
Subject: OpenStack-HPC Digest, Vol 23, Issue 4

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Today's Topics:

   1. Re: +1 for attendance to the HPC get-together	in	Vancouver.
      (Tim Bell)
   2. Re: +1 for attendance to the HPC get-together in	Vancouver.
      (Matt Jarvis)
   3. Re: +1 for attendance to the HPC get-together in	Vancouver.
      (Matt Jarvis)
   4. Re: CPU intensive apps on OpenStack (Blair Bethwaite)


----------------------------------------------------------------------

Message: 1
Date: Thu, 16 Apr 2015 13:02:17 +0000
From: Tim Bell <Tim.Bell at cern.ch>
To: Matt Jarvis <matt.jarvis at datacentred.co.uk>,
	"openstack-hpc at lists.openstack.org"
	<openstack-hpc at lists.openstack.org>
Subject: Re: [openstack-hpc] +1 for attendance to the HPC get-together
	in	Vancouver.
Message-ID:
	<5D7F9996EA547448BC6C54C8C5AAF4E501029CF555 at CERNXCHG43.cern.ch>
Content-Type: text/plain; charset="utf-8"

Can you send round the slides URL ?

Thanks
Tim

From: Matt Jarvis [mailto:matt.jarvis at datacentred.co.uk]
Sent: 16 April 2015 12:28
To: openstack-hpc at lists.openstack.org
Subject: [openstack-hpc] +1 for attendance to the HPC get-together in Vancouver.

Hi, new to this list, but we're running ATLAS workloads for the University of Lancaster on our OpenStack public cloud in the UK, and actively looking to run more HPC/HTC type workloads. Would be interested in attending a session in Vancouver. Peter Love from Lancaster University recently presented at HEPIX in Oxford on some of the challenges around his work on our cloud, with comparison to grid sites. I'd be happy to share the slides if anyone is interested.

--
Matt Jarvis
Head of Cloud Computing
DataCentred
Office: (+44)0161 8703985
Mobile: (+44)07983 725372
Email: matt.jarvis at datacentred.co.uk<mailto:matt.jarvis at datacentred.co.uk>
Website: http://www.datacentred.co.uk

DataCentred Limited registered in England and Wales no. 05611763
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Message: 2
Date: Thu, 16 Apr 2015 14:05:59 +0100
From: Matt Jarvis <matt.jarvis at datacentred.co.uk>
To: Tim Bell <Tim.Bell at cern.ch>
Cc: "openstack-hpc at lists.openstack.org"
	<openstack-hpc at lists.openstack.org>
Subject: Re: [openstack-hpc] +1 for attendance to the HPC get-together
	in	Vancouver.
Message-ID:
	<CACpXDz-5d3Mqztr_OuxNzdT4XiXHSgmB-2zajfQcj5yOUaeeJA at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

https://indico.cern.ch/event/346931/session/5/contribution/25

On 16 April 2015 at 14:02, Tim Bell <Tim.Bell at cern.ch> wrote:

>  Can you send round the slides URL ?
>
>
>
> Thanks
>
> Tim
>
>
>
> *From:* Matt Jarvis [mailto:matt.jarvis at datacentred.co.uk]
> *Sent:* 16 April 2015 12:28
> *To:* openstack-hpc at lists.openstack.org
> *Subject:* [openstack-hpc] +1 for attendance to the HPC get-together 
> in Vancouver.
>
>
>
> Hi, new to this list, but we're running ATLAS workloads for the 
> University of Lancaster on our OpenStack public cloud in the UK, and 
> actively looking to run more HPC/HTC type workloads. Would be 
> interested in attending a session in Vancouver. Peter Love from 
> Lancaster University recently presented at HEPIX in Oxford on some of 
> the challenges around his work on our cloud, with comparison to grid 
> sites. I'd be happy to share the slides if anyone is interested.
>
>
> --
>
> Matt Jarvis
>
> Head of Cloud Computing
> DataCentred
>
> Office: (+44)0161 8703985
> Mobile: (+44)07983 725372
>
> Email: matt.jarvis at datacentred.co.uk
>
> Website: http://www.datacentred.co.uk
>
>
> DataCentred Limited registered in England and Wales no. 05611763
>



--
Matt Jarvis
Head of Cloud Computing
DataCentred
Office: (+44)0161 8703985
Mobile: (+44)07983 725372
Email: matt.jarvis at datacentred.co.uk
Website: http://www.datacentred.co.uk

--
DataCentred Limited registered in England and Wales no. 05611763
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Message: 3
Date: Thu, 16 Apr 2015 20:26:46 +0100
From: Matt Jarvis <matt.jarvis at datacentred.co.uk>
To: Tim Bell <Tim.Bell at cern.ch>
Cc: "openstack-hpc at lists.openstack.org"
	<openstack-hpc at lists.openstack.org>
Subject: Re: [openstack-hpc] +1 for attendance to the HPC get-together
	in	Vancouver.
Message-ID:
	<CACpXDz-NyVPx6FgcCDzk55jbrjmLYZx4YyKXfk8gO=VDKJNYfA at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Probably also worth pointing out that the cores limit is somewhat artificial, Lancaster in this phase have a quota limit of 200 cores available to them.

On 16 April 2015 at 14:05, Matt Jarvis <matt.jarvis at datacentred.co.uk>
wrote:

> https://indico.cern.ch/event/346931/session/5/contribution/25
>
> On 16 April 2015 at 14:02, Tim Bell <Tim.Bell at cern.ch> wrote:
>
>>  Can you send round the slides URL ?
>>
>>
>>
>> Thanks
>>
>> Tim
>>
>>
>>
>> *From:* Matt Jarvis [mailto:matt.jarvis at datacentred.co.uk]
>> *Sent:* 16 April 2015 12:28
>> *To:* openstack-hpc at lists.openstack.org
>> *Subject:* [openstack-hpc] +1 for attendance to the HPC get-together 
>> in Vancouver.
>>
>>
>>
>> Hi, new to this list, but we're running ATLAS workloads for the 
>> University of Lancaster on our OpenStack public cloud in the UK, and 
>> actively looking to run more HPC/HTC type workloads. Would be 
>> interested in attending a session in Vancouver. Peter Love from 
>> Lancaster University recently presented at HEPIX in Oxford on some of 
>> the challenges around his work on our cloud, with comparison to grid 
>> sites. I'd be happy to share the slides if anyone is interested.
>>
>>
>> --
>>
>> Matt Jarvis
>>
>> Head of Cloud Computing
>> DataCentred
>>
>> Office: (+44)0161 8703985
>> Mobile: (+44)07983 725372
>>
>> Email: matt.jarvis at datacentred.co.uk
>>
>> Website: http://www.datacentred.co.uk
>>
>>
>> DataCentred Limited registered in England and Wales no. 05611763
>>
>
>
>
> --
> Matt Jarvis
> Head of Cloud Computing
> DataCentred
> Office: (+44)0161 8703985
> Mobile: (+44)07983 725372
> Email: matt.jarvis at datacentred.co.uk
> Website: http://www.datacentred.co.uk
>



--
Matt Jarvis
Head of Cloud Computing
DataCentred
Office: (+44)0161 8703985
Mobile: (+44)07983 725372
Email: matt.jarvis at datacentred.co.uk
Website: http://www.datacentred.co.uk

--
DataCentred Limited registered in England and Wales no. 05611763
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Message: 4
Date: Fri, 17 Apr 2015 15:36:02 +1000
From: Blair Bethwaite <blair.bethwaite at gmail.com>
To: openstack-hpc at lists.openstack.org, Tim Bell <Tim.Bell at cern.ch>
Subject: Re: [openstack-hpc] CPU intensive apps on OpenStack
Message-ID:
	<CA+z5DsxMJkD1K6uieiHCLprodiT35nDs6hW8C3Tg9=OW-KLUrA at mail.gmail.com>
Content-Type: text/plain; charset=UTF-8

Hi Tim,

What's your reference on disabling EPT? I can find some fairly old stuff on this, but I thought newer processors had improved performance here to lower page fault overheads... so I guess I'm wondering if you've seen a recent evaluation somewhere?

Re. NUMA etc, it seems like the most important thing if you're running large memory apps inside your guests is to make sure the guest is pinned (both CPU and NUMA wise) and sees a NUMA topology that matches how it is pinned on the host. I haven't had a chance to try it yet but I thought this was all now possible Juno. Beyond that you probably want the guest kernel to be NUMA sassy as well, so it needs (IIRC) Linux 3.13+ to get the numa_balancing (nee autonuma) goodies. I'm not sure if for such cases you might actually want to disable numa balancing on the host or whether the pinning would effectively remove any overhead there anyway...

PS: +1 on the meetup suggestion

--
Cheers,
~Blairo



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