Choosing Hardware Type and Disk Image

[Brian Peterson]

Hi all,

When using the Topology Editor to choose Hardware Type or Disk Image, how do I interpret the names that are available?  I am occasionally having issues exhausting hard drive space, and I'm wondering how to determine what the characteristics of things like "c220g2-vm" are.

Thanks

[Leigh Stoller]

Hi. The hardware descriptions for the physical nodes (c220g2) can be found
in the Cloudlab manual at: http://docs.cloudlab.us/hardware.html

The VMs are all about the same; 1 core, 1G ram, 16GB root filesystem.
These can be changed, but not with the topology editor, sorry. But
if you like, I can point you to a profile that demonstrates how to
do this, using a geni-lib script?

Leigh

[Brian Peterson]

I did download geni-lib and I generated a few scripts, but I never actually used them on cloudlab as I didn't see how that would alter the disk image(s) that are actually used, and it looked like the rest of what I needed to do would be easily workable through the topology editor, (basically I just need N nodes all mutually connected, at least for now).

That is interesting to me though, as I don't see any way that I'm using up 16 GB, but maybe there's something that my own program is doing wrong to eat up that much space.  I'll keep looking at it to see if I can figure it out on my end.

[Brian Peterson]

If you have demonstration geni-scripts then I would like to look at them, yes.

On Fri, Jun 24, 2016 at 2:18 PM, Leigh Stoller <lbst...@gmail.com> wrote:

[Robert Ricci]

We have samples up here:

http://docs.cloudlab.us/geni-lib.html

We don’t have specific examples of picking non-default sizes for the VMs, but I’m working in the documentation today, and will try to get such an example in there by the end of the day.

-----Original Message-----
From: Brian Peterson <bp.job...@gmail.com>
Reply: Brian Peterson <bp.job...@gmail.com>
Date: June 24, 2016 at 1:24:25 PM
To: Leigh Stoller <lbst...@gmail.com>
Cc: cloudlab-users <cloudla...@googlegroups.com>
Subject:  Re: [cloudlab-users] Choosing Hardware Type and Disk Image

> If you have demonstration geni-scripts then I would like to look at them,
> yes.
>

> On Fri, Jun 24, 2016 at 2:18 PM, Leigh Stoller wrote:
>
> > > When using the Topology Editor to choose Hardware Type or Disk Image, how
> > > do I interpret the names that are available? I am occasionally having
> > > issues exhausting hard drive space, and I'm wondering how to determine
> > > what the characteristics of things like "c220g2-vm" are.
> >
> > Hi. The hardware descriptions for the physical nodes (c220g2) can be found
> > in the Cloudlab manual at: http://docs.cloudlab.us/hardware.html
> >
> > The VMs are all about the same; 1 core, 1G ram, 16GB root filesystem.
> > These can be changed, but not with the topology editor, sorry. But
> > if you like, I can point you to a profile that demonstrates how to
> > do this, using a geni-lib script?
> >
> > Leigh
> >
> >
> >
> >
> >
>

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[Leigh Stoller]

> We don’t have specific examples of picking non-default sizes for the VMs, but I’m working in the documentation today, and will try to get such an example in there by the end of the day.

Here is an example: https://www.cloudlab.us/show-profile.php?action=edit&uuid=969926aa-3a42-11e6-ac8a-90e2ba22fee4

Leigh

[Brian Peterson]

There's no rush on my end, I don't think I'll end up getting back to it today or tomorrow, as I'm knee deep in my own code at the moment but I appreciate it.  Particularly, after I get a "baseline" experiment running I'm going to be interested in trying to restrict a particular node, or simulate traffic so that I can see what happens with a particular scheduler when utilizing a mix of nodes that have a variety of performance characteristics, even if they have similar hardware.

Thanks.

[Robert Ricci]

There is now an example up in the manual at:

http://docs.cloudlab.us/geni-lib.html#%28part._geni-lib-example-single-vm-sized%29

-----Original Message-----
From: Brian Peterson <bp.job...@gmail.com>
Reply: Brian Peterson <bp.job...@gmail.com>
Date: June 24, 2016 at 1:36:51 PM
To: Robert Ricci <ri...@cs.utah.edu>
Cc: Leigh Stoller <lbst...@gmail.com>, cloudlab-users <cloudla...@googlegroups.com>
Subject:  Re: [cloudlab-users] Choosing Hardware Type and Disk Image

> There's no rush on my end, I don't think I'll end up getting back to it
> today or tomorrow, as I'm knee deep in my own code at the moment but I
> appreciate it. Particularly, after I get a "baseline" experiment running
> I'm going to be interested in trying to restrict a particular node, or
> simulate traffic so that I can see what happens with a particular scheduler
> when utilizing a mix of nodes that have a variety of performance
> characteristics, even if they have similar hardware.
>
> Thanks.
>