2009/10/5 Mark Hahn :
>> the other nodes are to be diskless.. I have separated these partitions:
>> /swap /boot / /var and /home. Is this ok?
>
> I don't believe there is much value in separating partitions like this.
> for instance, a swap partition has no advantage over a swap file,
> and the l
2009/10/5 Nifty Tom Mitchell :
> I like Ubuntu because it facilitates my WiFi and graphics support better than
> some others. It is also quite current in image tools so it is the distro
> I connect my camera to more often than my other systems. I can also
I gotta put in a reply here for SuSE. T
the other nodes are to be diskless.. I have separated these partitions:
/swap /boot / /var and /home. Is this ok?
I don't believe there is much value in separating partitions like this.
for instance, a swap partition has no advantage over a swap file,
and the latter is generally more convenien
Tom Rockwell wrote:
Hi,
Intel assigns the same power consumption to different clockspeeds of L,
E, X series XEON. All L series have the same rating, all E series etc.
Not quite. They provide the maximum power consumption/dissipation, and
quite possibly bin these numbers over a range of p
Hi Tom,
On Tue, Sep 15, 2009 at 8:45 PM, Tom Rockwell wrote:
> Hi,
>
> Intel assigns the same power consumption to different clockspeeds of L, E, X
> series XEON. All L series have the same rating, all E series etc. So,
> taking their numbers, the fastest of each type will always have the best
You can get a full complement of switches and leds for under 10 bucks.
Just search froogle for "atx power switch". I've purchased the
StarTech kits in the past.
On Sun, Oct 4, 2009 at 12:44 PM, Tomislav Maric wrote:
> John Hearns wrote:
>> 2009/10/4 Tomislav Maric :
>>> @John Hearns
>>> Thank y
On Sun, Oct 04, 2009 at 01:08:27PM +0200, Tomislav Maric wrote:
> Mark Hahn wrote:
> >> I've seen Centos mentioned a lot in connection to HPC, am I making a
> >> mistake with Ubuntu??
> >
> > distros differ mainly in their desktop decoration. for actually
> > getting cluster-type work done, the
Mark Hahn wrote:
>> disk is the /home with the results. What file system should I use for
>> it, ext3?
>
> it doesn't matter much. ext3 is a reasonable, conservative choice;
> ext4 is the modern upgrade, though considered too-new-to-be-stable by some.
> xfs is prefered as a matter of taste by oth
Mark Hahn wrote:
I've seen Centos mentioned a lot in connection to HPC, am I making a
mistake with Ubuntu??
>>> distros differ mainly in their desktop decoration. for actually
>>> getting cluster-type work done, the distro is as close to irrelevant
>>> as imaginable. a matter of taste,
Mark Hahn wrote:
So, maybe the bold question to ask would be: what would be the best RAID
config for 3 HDDS and a max 6 node HPC cluster? Should I just use RAID 1
>>> do you mean for each node?
>> No, the nodes are diskless. I plan to scale the cluster and 1TB of
>> storage is quite enoug
Hi Jörg,
thanks for the info. I'm converging to the solution regarding RAID now.
Thank you a lot for the link I'll be needing it. :)
Well, I don't need too much scratch space, the important part of the
disk is the /home with the results. What file system should I use for
it, ext3?
Best regards,
John Hearns wrote:
> 2009/10/4 Tomislav Maric :
>> @John Hearns
>> Thank you! I've been looking around and I new there must be some kind of
>> power supply for multiple motherboards. That's exactly what I'll need
>> when the time comes for scaling.
>
> Tomislav, this is not a true power supply for
John Hearns wrote:
> 2009/10/4 Tomislav Maric :
>> J
>> Yes, definitely, I'm removing the results after postprocessing, and I'm
>> the only user. :)
>
> Aha. I see Just wait for those other users to come along. will
> they remove the files immediately after postprocessing? Hmmm??? My
> advice
Hello, Tomislav,
Anthony is right pointing that the "On after AC loss" or a similar feature
would help on multiple occasions of sudden loss of power, however a switch
would probably be handy in your setup.
Basically any microswitch from an electronics shop would go. It might
be more difficult to
Hi Tomislav
I agree with what Skylar wrote. However, ask yourself what are you going to do
with the cluster?
For example, I am doing quite a lot of molecular modelling, which requires
plenty of RAM and also scratch space.
So for the machines at the old University, I set up /boot and / as RAID1
John Hearns wrote:
> 2009/10/4 Tomislav Maric :
>>
>> No, the nodes are diskless. I plan to scale the cluster and 1TB of
>> storage is quite enough, even if I use 6 nodes, or 2x6 nodes. That's
>> actually what I know from my small experience in running CFD codes on 96
>> cores cluster.
> 1 Tbyte?
@John Hearns
Thank you! I've been looking around and I new there must be some kind of
power supply for multiple motherboards. That's exactly what I'll need
when the time comes for scaling.
@Tony Travis
Thanks, I've sawed off a switch from an old box. :) It's doing the job
so far. There were no fla
Tomislav Maric wrote:
Hi Dmitri and Tony,
thank you both very much for your answers. I'm on my way to rip out a
switch from an old computer case so I can start the master node for the
first time (hopefully without calling the firemen and an ambulance :) ).
I'll setup the BIOS as you've told me:
Hi Dmitri and Tony,
thank you both very much for your answers. I'm on my way to rip out a
switch from an old computer case so I can start the master node for the
first time (hopefully without calling the firemen and an ambulance :) ).
I'll setup the BIOS as you've told me: "ON after AC loss". Doe
Tomislav Maric wrote:
Hi again,
where can I get an "on/off" and "reset" switch for ATX motherboard
without buying and ripping apart a case?
Should I make one? I'm planning on having up to 12 mobos: should I use
software for powering them off and reseting them (i.e. over LAN), or
make a bunch o
Hi again,
where can I get an "on/off" and "reset" switch for ATX motherboard
without buying and ripping apart a case?
Should I make one? I'm planning on having up to 12 mobos: should I use
software for powering them off and reseting them (i.e. over LAN), or
make a bunch of switches and place the
Mark Hahn wrote:
>> I've seen Centos mentioned a lot in connection to HPC, am I making a
>> mistake with Ubuntu??
>
> distros differ mainly in their desktop decoration. for actually
> getting cluster-type work done, the distro is as close to irrelevant
> as imaginable. a matter of taste, really
Mark Hahn wrote:
>> So, maybe the bold question to ask would be: what would be the best RAID
>> config for 3 HDDS and a max 6 node HPC cluster? Should I just use RAID 1
>
> do you mean for each node?
No, the nodes are diskless. I plan to scale the cluster and 1TB of
storage is quite enough, even
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