Re: MPICH Fabric

From: Rayson Ho <no email>
Date: Fri, 16 May 2014 17:40:26 -0400

You need to use an HVM AMI, together with the right driver, and also
run the cluster in a VPC to get AWS enhanced networking:

http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/enhanced-networking.html

Rayson

==================================================
Open Grid Scheduler - The Official Open Source Grid Engine
http://gridscheduler.sourceforge.net/
http://gridscheduler.sourceforge.net/GridEngine/GridEngineCloud.html




On 5/16/14, David Stuebe <DStuebe_at_asascience.com> wrote:
>
> Hi Rayson
>
> I have written a plugin to run the intel installer from a tgz file on s3. It
> takes a while but seems to work.
>
> I am using one of the stock public images:
> [0] ami-3393a45a us-east-1 starcluster-base-ubuntu-13.04-x86_64 (EBS)
>
> Should I be using the HVM image? I understood they are only needed for GPU
> computing?
>
> How can I tell if I have the enhanced networking driver setup correctly? In
> the paravirtual machine lspci etc show nothing?
>
> Thanks for the suggestions!
>
> David Stuebe
> Scientist & Software Engineer – RPS ASA
>
> 55 Village Square Drive
> South Kingstown, RI 02879-8248
>
> Tel: +1 (401) 789-6224
> Email: David.Stuebe_at_rpsgroup.com<mailto:David.Stuebe_at_rpsgroup.com>
> www: asascience.com<http://www.asascience.com/> |
> rpsgroup.com<http://www.rpsgroup.com/>
>
> A member of the RPS Group plc
>
> From: Rayson Ho <raysonlogin_at_gmail.com<mailto:raysonlogin_at_gmail.com>>
> Date: Fri, 16 May 2014 09:13:03 -0400
> To: David Stuebe <dstuebe_at_asascience.com<mailto:dstuebe_at_asascience.com>>
> Cc: "starcluster_at_mit.edu<mailto:starcluster_at_mit.edu>"
> <starcluster_at_mit.edu<mailto:starcluster_at_mit.edu>>
> Subject: Re: [StarCluster] MPICH Fabric
>
> How are you deploying the Intel Cluster Compiler Suite? If you are using a
> custom AMI, then make sure that you have the AWS enhanced networking NIC
> driver setup correctly, and also make sure that your instances are all in a
> placement group, and in a VPC (those should be set by StarCluster if you are
> using the latest stable version).
>
> We benchmarked AWS enhanced networking on the C3 family a few months ago,
> and the latency is around 20% better on a pair of C3.8xlarge instances in a
> placement group with AWS enhanced networking enabled:
>
> http://blogs.scalablelogic.com/2014/01/enhanced-networking-in-aws-cloud-part-2.html
>
> Rayson
>
> ==================================================
> Open Grid Scheduler - The Official Open Source Grid Engine
> http://gridscheduler.sourceforge.net/
> http://gridscheduler.sourceforge.net/GridEngine/GridEngineCloud.html
>
>
> On Thu, May 15, 2014 at 3:18 PM, David Stuebe
> <DStuebe_at_asascience.com<mailto:DStuebe_at_asascience.com>> wrote:
>
> Hi Starcluster
>
> Do anyone have advice on what fabric to use when running on AWS?
>
> I know the interconnect is supposed to be 10-gigE but my model is more
> dependent on latency than throughput.
>
> I have had to use the Intel Cluster Compiler Suite rather than the built in
> OpenMPI. Hoping to resolve those issues and compare the two – I am
> interested to see the performance differences…
>
> Currently the model actually has a negative performance curve as I add
> processors past a single node.
>
> Model performance on running on Amazon…
> C3.8Xlarge - 1 instance, 32 cores
> ! IINT SIMTIME(UTC) FINISH IN SECS/IT PERCENT
> COMPLETE
> !8396282 2014-03-18T00:18:02.000000 0000:07:54:19 0.1103 |
> |
>
> C3.8Xlarge - 2 instance, 64 cores
> !8395221 2014-03-18T00:00:21.000000 0000:20:27:58 0.2843 |
> |
>
> C3.8Xlarge - 3 instance, 96 cores
> !8395273 2014-03-18T00:01:13.000000 0007:18:33:19 2.5918 |
> |
>
>
> David Stuebe
> Scientist & Software Engineer – RPS ASA
>
> 55 Village Square Drive
> South Kingstown, RI 02879-8248
>
> Tel: +1 (401) 789-6224<tel:%2B1%20%28401%29%20789-6224>
> Email: David.Stuebe_at_rpsgroup.com<mailto:David.Stuebe_at_rpsgroup.com>
> www: asascience.com<http://www.asascience.com/> |
> rpsgroup.com<http://www.rpsgroup.com/>
>
> A member of the RPS Group plc
>
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>
>
>
Received on Fri May 16 2014 - 17:40:28 EDT