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MPI using HPC Roll on VM Container
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Shamil CM  
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 More options Feb 25 2012, 7:03 am
From: Shamil CM <shamil...@gmail.com>
Date: Sat, 25 Feb 2012 17:33:57 +0530
Local: Sat, Feb 25 2012 7:03 am
Subject: [Rocks-Discuss] MPI using HPC Roll on VM Container
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Hi,

Can we run MPI programs using HPC rolls on nodes configured as VM
Containers, just as we do if the appliace type was Compute. Is there any
other configuration required. I dont have any virtual compute nodes inside
the VM Containers.

Regards,
Shamil

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Hung-Sheng Tsao (laoTsao)  
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 More options Feb 25 2012, 7:16 am
From: "Hung-Sheng Tsao (laoTsao)" <laot...@gmail.com>
Date: Sat, 25 Feb 2012 07:16:11 -0500
Local: Sat, Feb 25 2012 7:16 am
Subject: Re: [Rocks-Discuss] MPI using HPC Roll on VM Container
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in theory this is possible, just like using the cloud
in practice you still need to partition the cpu and setup the queue with the vcpu of your VM
these vcpu will not be used by the node or other VM
IMHO, unless you need some security reason to hard partition your node/cluster
a private cluster/cloud  will have better utilization without VM
-LT

Sent from my iPad

On Feb 25, 2012, at 7:03, Shamil CM <shamil...@gmail.com> wrote:


 
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Luca Clementi  
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 More options Feb 27 2012, 12:05 pm
From: Luca Clementi <luca.cleme...@gmail.com>
Date: Mon, 27 Feb 2012 09:05:11 -0800
Local: Mon, Feb 27 2012 12:05 pm
Subject: Re: [Rocks-Discuss] MPI using HPC Roll on VM Container
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Theoretically yes, but you have to do some work...
You have to configure SGE to submit host to that machine (Rocks
doesn't include it automatically as it does for compute).

Moreover Dom0 (at least on 5.4.3) are set up so that only 1 vcpu and
700MB of RAM are allocated to them, so you also have to change that.

I wouldn't go down for that path if I were in you.

Luca


 
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