On 18 Jan 2001, Dag-Erling Smorgrav wrote:
> Fun Things To Do With Disks #9,187:
>
> Take a powered-up disk out of a hot-swap storage array and experiment
> with the gyro effect while the disk spins down in your hands. Higher
> RPMs give better results; try one of the 'cudas from that E10K in the
:PW>
:PW>I have a 15K rpm drive if you want to do a recalculation. I think that
:PW>is 1.05Mach, depending on whether you rounded or not. ;-)
:
:Well, 7cm gives 21cm per rotation or 2.1km for 1 rotations. 1
:Rotations Per Minute give around 130km per hour which is somewhere around
:0.1MA
+---[ Poul-Henning Kamp ]--
| In message <[EMAIL PROTECTED]>,
|[EMAIL PROTECTED] writes:
|
| >>> What am I doing wrong? Given a diameter of appr. 7cm, I'd come at appr
| >>> 0.7Mach. Does that mean that within a few years my machine will go
| >>> KABOOM when booting?
| >>
In message <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
writes:
>>> What am I doing wrong? Given a diameter of appr. 7cm, I'd come at appr
>>> 0.7Mach. Does that mean that within a few years my machine will go
>>> KABOOM when booting?
>>
>> I have a 15K rpm drive if you want to do a recalculation. I
On 30 Jan, Peter Wemm wrote:
> Mark Huizer wrote:
>> > |
>> > | Doh! I mean 9.8 m/s/s, of course.
>> >
>> > That's acceleration not velocity :-)
>> >
>> > The terminal velocity of a PC case is probably a lot lower than the
>> > velocity of an outer edge of a 1 RPM drive.
>> >
>> What am I
On Tue, 30 Jan 2001, Peter Wemm wrote:
PW>Mark Huizer wrote:
PW>> > |
PW>> > | Doh! I mean 9.8 m/s/s, of course.
PW>> >
PW>> > That's acceleration not velocity :-)
PW>> >
PW>> > The terminal velocity of a PC case is probably a lot lower than the
PW>> > velocity of an outer edge of a 1 RPM
Mark Huizer wrote:
> > |
> > | Doh! I mean 9.8 m/s/s, of course.
> >
> > That's acceleration not velocity :-)
> >
> > The terminal velocity of a PC case is probably a lot lower than the
> > velocity of an outer edge of a 1 RPM drive.
> >
> What am I doing wrong? Given a diameter of appr. 7
> |
> | Doh! I mean 9.8 m/s/s, of course.
>
> That's acceleration not velocity :-)
>
> The terminal velocity of a PC case is probably a lot lower than the
> velocity of an outer edge of a 1 RPM drive.
>
What am I doing wrong? Given a diameter of appr. 7cm, I'd come at appr
0.7Mach. Does th
I'm going to try these ideas out, thanks for the pointers. I'm
highly motivated to stop waiting so long :-). And a nice
use for the systems that have been piling up, if this works
out.
I'll be reporting back...
Cheers,
Russell
%
%On 20-Jan-01 Wes Peters wrote:
%> "Russell L. Carter" wrote:
On 20-Jan-01 Wes Peters wrote:
> "Russell L. Carter" wrote:
>> %See the paper "Recursive Make Considered Harmful." Make is an amazing
>> %tool when used correctly.
>>
>> That's not the problem, unfortunately. I've never had a problem
>> rebuilding dependencies unnecessarily, or any of those
"Russell L. Carter" wrote:
>
> %> No it would not! Back in '94 I ported dmake to FreeBSD
> %> and built just about every numerics package out there
> %> on a 4 CPU cluster. Worked fine, but not much in overall
> %> speedup, because... tadum! Where do you get the source
> %> files, and how do yo
%> No it would not! Back in '94 I ported dmake to FreeBSD
%> and built just about every numerics package out there
%> on a 4 CPU cluster. Worked fine, but not much in overall
%> speedup, because... tadum! Where do you get the source
%> files, and how do you get the objs back :-) Not low
%> lat
Sorry, the wrong URL.
http://www.acl.lanl.gov/~rminnich
ron
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This link appears broken. Typo perhaps?
Ronald G Minnich wrote:
> See it at http://www.lanl.gov/~rminnich/.
--
Paul Marquis
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"Russell L. Carter" wrote:
>
> %Uwe Pierau wrote:
> %>
> %> Jamie Heckford wrote:
> %> # Hi,
> %> # Does anyone have any details of Open Source, or software included
> %> # with FreeBSD that allows the clustering of FreeBSD?
> %>
> %> Maybe you mean something like this...
> %> http://ac
On Fri, 19 Jan 2001, Brooks Davis wrote:
> For those who want a simple, stupid way to do this, making an MPI
> application is a convenient first step. MPI is pretty similar to PVM
> except that I don't know of anyone in the high performance computing
> community that still uses PVM for new appli
On Thu, Jan 18, 2001 at 10:41:15PM -0700, Russell L. Carter wrote:
> Nowadays, you'd want to "globus ify" things, rather than
> use use PVM.
For those who want a simple, stupid way to do this, making an MPI
application is a convenient first step. MPI is pretty similar to PVM
except that I don't
%Uwe Pierau wrote:
%>
%> Jamie Heckford wrote:
%> # Hi,
%> # Does anyone have any details of Open Source, or software included
%> # with FreeBSD that allows the clustering of FreeBSD?
%>
%> Maybe you mean something like this...
%> http://acme.ecn.purdue.edu/index.html
%> ?!
%
%Yes!
%
%
Uwe Pierau wrote:
>
> Jamie Heckford wrote:
> # Hi,
> # Does anyone have any details of Open Source, or software included
> # with FreeBSD that allows the clustering of FreeBSD?
>
> Maybe you mean something like this...
> http://acme.ecn.purdue.edu/index.html
> ?!
Yes!
When is somebo
On Thu, Jan 18, 2001 at 01:17:36PM +0100, Dag-Erling Smorgrav wrote:
> "Koster, K.J." <[EMAIL PROTECTED]> writes:
> > > The terminal velocity of a PC case is probably a lot lower than the
> > > velocity of an outer edge of a 1 RPM drive.
> > Hmm. That would make a FreeBSD cluster quite useful
"Koster, K.J." <[EMAIL PROTECTED]> writes:
> > The terminal velocity of a PC case is probably a lot lower than the
> > velocity of an outer edge of a 1 RPM drive.
> Hmm. That would make a FreeBSD cluster quite useful as a garden shredder,
> even with lower disc rotation speeds I'd imagine.
Fu
>
> | Doh! I mean 9.8 m/s/s, of course.
>
> That's acceleration not velocity :-)
>
> The terminal velocity of a PC case is probably a lot lower than the
> velocity of an outer edge of a 1 RPM drive.
>
Hmm. That would make a FreeBSD cluster quite useful as a garden shredder,
even with lower
+---[ Dag-Erling Smorgrav ]--
| Dag-Erling Smorgrav <[EMAIL PROTECTED]> writes:
| > Jamie Heckford <[EMAIL PROTECTED]> writes:
| > > In all honesty, I am just looking for something to play
| > > with and see how fast FreeBSD can go.
| > I'd say about 2.8 m/s/s, given suffic
Dag-Erling Smorgrav <[EMAIL PROTECTED]> writes:
> Jamie Heckford <[EMAIL PROTECTED]> writes:
> > In all honesty, I am just looking for something to play
> > with and see how fast FreeBSD can go.
> I'd say about 2.8 m/s/s, given sufficient height.
Doh! I mean 9.8 m/s/s, of course.
DES
--
Dag-Erl
Jamie Heckford <[EMAIL PROTECTED]> writes:
> In all honesty, I am just looking for something to play
> with and see how fast FreeBSD can go.
I'd say about 2.8 m/s/s, given sufficient height.
DES
--
Dag-Erling Smorgrav - [EMAIL PROTECTED]
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On Tue, Jan 16, 2001 at 05:36:51PM +, Jamie Heckford scribbled:
| Does anyone have any details of Open Source, or software included
| with FreeBSD that allows the clustering of FreeBSD?
|
| I have 55 racks sitting here to play with, and want to start doing
| some serious work (for me anyway!)
Jamie Heckford wrote:
# Hi,
# Does anyone have any details of Open Source, or software included
# with FreeBSD that allows the clustering of FreeBSD?
Maybe you mean something like this...
http://acme.ecn.purdue.edu/index.html
?!
Uwe
To Unsubscribe: send mail to [EMAIL PROTECTED]
wit
On Tue, Jan 16, 2001 at 05:36:51PM +, Jamie Heckford wrote:
> Does anyone have any details of Open Source, or software included
> with FreeBSD that allows the clustering of FreeBSD?
Install the pvm port (ports/net/pvm) on the machines.
I've played around with this a bit, and it's quite fun t
%In all honesty, I am just looking for something to play
%with and see how fast FreeBSD can go.
%
%Sort of thing where those two guys clustered about 200 486's
%or something stupid like that..
Go to google and search for Beowulf. Or Mosix.
Or Ron Minnich :-)
Or "smart networks", if all you
In all honesty, I am just looking for something to play
with and see how fast FreeBSD can go.
Sort of thing where those two guys clustered about 200 486's
or something stupid like that..
:)
Jamie
On 2001.01.16 18:31:43 + [EMAIL PROTECTED] wrote:
>
>
> On 16 Jan, Jamie Heckford wrote:
> >
The first question I have when someone brings this up is, "please define
what you mean by clustering". There are multiple interpretations. Can you
elaborate?
-Charles
-Original Message-
From: Jamie Heckford [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, January 16, 2001 10:37 AM
To: [EMAIL PR
On 16 Jan, Jamie Heckford wrote:
> Hi,
>
> Does anyone have any details of Open Source, or software included
> with FreeBSD that allows the clustering of FreeBSD?
>
> I have 55 racks sitting here to play with, and want to start doing
> some serious work (for me anyway!) with fBSD
>
> Plz. let
* Jamie Heckford <[EMAIL PROTECTED]> [010116 09:29] wrote:
> Hi,
>
> Does anyone have any details of Open Source, or software included
> with FreeBSD that allows the clustering of FreeBSD?
>
> I have 55 racks sitting here to play with, and want to start doing
> some serious work (for me anyway!)
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