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
:PWI have a 15K rpm drive if you want to do a recalculation. I think that
:PWis 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
|
| 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 that mean
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. 7cm, I'd come at
On Tue, 30 Jan 2001, Peter Wemm wrote:
PWMark 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 drive.
PW
PW What
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 doing wrong? Given a
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 think that
+---[ 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?
|
| I have
"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 you get the
On 20-Jan-01 Wes Peters wrote:
"Russell L. Carter" wrote:
details snipped
%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
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 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
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
"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...
%
Sorry, the wrong URL.
http://www.acl.lanl.gov/~rminnich
ron
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-hackers" in the body of the message
% 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
% latency,
| 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 disc
"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.
Fun
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 as a
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 somebody going
%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
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]
To Unsubscribe: send mail to [EMAIL PROTECTED]
with
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-Erling
+---[ 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 sufficient
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 me know! :)
Thanks,
--
Jamie Heckford
Chief
* 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!) with
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 me
To: [EMAIL PROTECTED]
Subject: Clustering FreeBSD
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. l
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:
Hi,
%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
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 to
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]
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
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