[gmx-users] GROMACS in parallel on Dual CPU Linux machine

[Erik Lindahl]

Hi Oliver,

Just for reference I'm still trying to collect information to 
understand this (we have a couple of them too :-)

Are you only experiencing problems when running in parallel, or at 
least when you have two jobs, or are they flakey even with one job?

I'm not testing any SMP stuff in the CPU heating prog, perhaps I 
should...

Cheers,

Erik

On Tuesday, May 20, 2003, at 04:15  AM, Oliver Beckstein wrote:

> Re: Athlon problems, I think there was some discussion about this on 
> the
> list 2 months ago. We have two dual Athlon XP boxes with Tyan Tiger MP
> S2460 motherboards which are _unusable_ because they crash completely 
> on
> any heavy computational load (although they survived Eric's cpuburn).
> Temperature is not an issue there. On the Beowulf list I heard that 
> 'these
> motherboards suck administrators' time like black holes', ie the 
> hardware
> seems to be extremely flaky. Perhaps you have similar problems. (On a
> sidenote, we also have some Tiger 2466 and these run rock solidly). I
> cannot offer a solution, though, I am afraid.
>
> Oliver
>
>> Pratul K. Agarwal wrote:
>> [...]
>>> Has anybody seen this before (the effect of temperature on
>>> parallel jobs)?
>>
>> 2 single or one parallel jobs will (should?) give identical CPU
>> load, so in that case your problem is probably not heating.
>
> -- 
> Oliver Beckstein * oliver at bioch.ox.ac.uk
>  http://indigo1.biop.ox.ac.uk/oliver/
>
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