[Beowulf] Re: "hobbyists"

Jon Aquilina eagles051387 at gmail.com
Tue Jun 24 23:43:34 PDT 2008


how much does a sugar glass window cost now that sugar and other things are
being used for bio fuels?

On Wed, Jun 25, 2008 at 12:20 AM, Mark Hahn <hahn at mcmaster.ca> wrote:

>
>  More specifically for HPC, linux seems designed for the desktop, and
>>> for small memory machines.
>>>
>>
> the only justice I can see in that is that there hasn't been all that much
> effort to get bigpages widely/easily used.  in particular, I don't
> see that scheduler or general memory-management issues in linux are
> particularly biased for desktop or against HPC.
>
> That's funny, because I've heard people get scared that it was the complete
>> opposite. That Linux was driven by Big Iron, and that no one cared about
>> the "little desktop guy" (Con Kolivas is an interesting history example).
>>
>
> Con didn't play the game right - you have to have the right combination of
> social engineering (especially timing and proactive response) and good tech
> kungfoo.  kernel people are biased towards a certain aesthetic that doesn't
> punish big-picture redesigns from scratch, but _does_ punish solutions in
> search of a problem.
>
> so the question is, if you had a magic wand, what would you change in the
> kernel (or perhaps libc or other support libs, etc)?  most of the things I
> can think of are not clear-cut.  I'd like to be able to give better info
> from perf counters to our users (but I don't think Linux is really in the
> way).  I suspect we lose some performance due to jitter
> injected by the OS (and/or our own monitoring) and would like to improve,
> but again, it's hard to blame Linux.  I'd love to have better options for
> cluster-aware filesystems.  kernel-assisted network shared memory?
>
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-- 
Jonathan Aquilina
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