Mailinglist Archive: opensuse (2459 mails)

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Re: [opensuse] [OT] unstable system - still trying to identify the culprit.
  • From: Basil Chupin <blchupin@xxxxxxxxxx>
  • Date: Tue, 04 Mar 2008 21:21:19 +1100
  • Message-id: <47CD229F.9040204@xxxxxxxxxx>
Per Jessen wrote:
Basil Chupin wrote:

Per Jessen wrote:
You will undoubtedly remember the discussion about the stability
problems on my new workstation from a couple of weeks ago. I'll
quickly sum up -
[pruned]


And the machine still crashes under load - even just a little bit. I
run two copies of mprime, plus firefox and such, and after 15-20
minutes, I get the automatic reboot.
[pruned]

Out of (personal) curiosity, why do you run 2 copies of mprime for
these tests? Wouldn't the one copy do?

It's a quad-core machine, so it should be possible to run four copies of
mprime concurrently without it falling over.

My earlier question to Randall was made out of the need to know to what he stated.

So, it seems that the "logical" answer is to run a copy of mprime for each core available in the CPU.

However, while this is seems to be a "logical" occlusion, is it really a practical or practicable thing to do?

What exactly is the purpose of running all these copies of mprime? What exactly will it prove if the CPU can run 2 or 3 or 4 copies of mprime?

If the CPU can handle 1 copy of mprime - and it seems that it can from what you say below - isn't that enough to show that the CPU and the hardware it is connected with is capable of working without falling over under normal usage?

I mean, what sort of stress do you expect to put your server in its life time? Or is this stress test that you are subjecting your new mobo etc just a matter of finding out WHY the damn thing HAS fallen over when it had to run at least a couple of copies of mprime plus whatever it was you ran at the same time? Will your machine ever have to be put under such a stress?

Latest update - it was suggested I install 10.3, then upgrade to the
latest kernel. Which has very surprisingly had the effect that I can
now run one copy of mprime a lot longer than before. I had one copy
running almost eight hours last night.


Well, there you are. Didn't fall over for ~8 hours - a lot better than ~20 minutes :-) .

Use your new system to do something productive rather keep running mprime :-D .

I asked AMD for a CPU diagnostic tool, but they can only supply
something for Windows.

<sigh> That'll be right :-( .


Ciao.

--
A fanatic is one who can't change his mind and
won't change the subject.
Sir Winston Churchill

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