Re: [opensuse] how to burn my cpu?
Easy, Install the backup software kdar Backup you ALL partitions and exclude noting and use full backup do not create multiple files to an NFS drive and verify the installation = I have had my P4 shown on me reliable due critical temp overheat despite throttling which appear (not sure) to be overridden. Kdar can be found on a search of software management using the keyword backup in versions 10.0-10.2 - Happy frying Scott Eberhard Roloff wrote: Hi, I am looking for an app that makes my CPU as hot as can be. This is to test various things that should make my PC silently running on a shoestring while staying stable as is. I googled, but only found cpuburn 1.4 While this works, it seems to be developed for PIII 450 machines. I have a rather modest machine by todays standards (P4, 2.8), but even starting multiple simultaneous instances of cpuburn never really challenge my cpu. Does anyone know of something more stressful that works on Linux? Thanks much and kind regards Eberhard smime.p7s Description: S/MIME Cryptographic Signature
Re: [opensuse] how to burn my cpu?
On Thu, 2007-05-24 at 15:44 -0500, M Harris wrote: On Thursday 24 May 2007 07:33, Eberhard Roloff wrote: I am looking for an app that makes my CPU as hot as can be. This is to test various things that should make my PC silently running on a shoestring while staying stable as is. time echo scale=1010; 16*a(1/5)-4*a(1/239) |bc -lq The above will compute PI to 1000+ decimal places in about 300-400 ms on a modern PC. But, if you set scale sufficiently high say, 20 then the cpu will become quite warm... and will not damage anything. That is very cleaver I sent it to my old computer professor who likes APL. Now there is a hard language. Ill see how fast his machine kicks. -- ___ _ _ _ _ _ _ || | | [__ | | | |___ |_|_| ___] | \/ | \ /|\ || |\ / |~~\ /~~\ /~~| //~~\ | \ / | \ || | X |__/||| |( `--. |__ | | \| \_/ / \ | \ \__/ \__| \\__/ -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [opensuse] how to burn my cpu?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 James Knott wrote: M Harris wrote: On Thursday 24 May 2007 17:08, James Knott wrote: Maybe you should try one of those infinite binary loops, that were so popular a few years back. They were supposedly able to trash a CPU! ;-) ... I've never actually been able to ruin a cpu that was properly sinked and vented... what the PI routine does not do is IO, not till its done anyway. But what it does do if scale is set high enough is to force the memory requirements off chip... so it exercises not just the ALU, but the bus logic as well... and it keeps those flops toggling long and fast which in turn draws lots of current which in turn creates lots of heat. Most of the time the processor in a linux machine is pretty much sitting there idle... that has always amazed me also I guess you missed the ;-). That infinite binary loop was a bit of nonsense, that was going around a few years back. This reminds me... Some a years ago I came across I link where some guys overclocked a CPU and fried an egg on it while playing Doom. But hopefully this is not what is required here :-) -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.5 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFGVpY9asN0sSnLmgIRAiA2AJ9QKtfw/RF7B3o8kAM1/0bl2QM0DACdE+IK MdF/7hvKYIvULs47sJ6uyxk= =c4Z5 -END PGP SIGNATURE- -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [opensuse] how to burn my cpu?
Another one: Client of the GIMPS project (www.mersenne.org) in stress-test-mode. Regards Volker -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [opensuse] how to burn my cpu?
G T Smith wrote: I guess you missed the ;-). That infinite binary loop was a bit of nonsense, that was going around a few years back. This reminds me... Some a years ago I came across I link where some guys overclocked a CPU and fried an egg on it while playing Doom. But hopefully this is not what is required here :-) A while ago, I read something (from someone at Intel?) that the thermal density, that is amount of heat per volume was greater in modern CPU's than in nuclear reactor! Modern CPU's often draw as much power as a light bulb and a light bulb runs white hot! -- Use OpenOffice.org http://www.openoffice.org -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[opensuse] how to burn my cpu?
Hi, I am looking for an app that makes my CPU as hot as can be. This is to test various things that should make my PC silently running on a shoestring while staying stable as is. I googled, but only found cpuburn 1.4 While this works, it seems to be developed for PIII 450 machines. I have a rather modest machine by todays standards (P4, 2.8), but even starting multiple simultaneous instances of cpuburn never really challenge my cpu. Does anyone know of something more stressful that works on Linux? Thanks much and kind regards Eberhard -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [opensuse] how to burn my cpu?
cat /dev/zero /dev/null :) be carefull cpu temp may be very hot On 5/24/07, Eberhard Roloff [EMAIL PROTECTED] wrote: Hi, I am looking for an app that makes my CPU as hot as can be. This is to test various things that should make my PC silently running on a shoestring while staying stable as is. I googled, but only found cpuburn 1.4 While this works, it seems to be developed for PIII 450 machines. I have a rather modest machine by todays standards (P4, 2.8), but even starting multiple simultaneous instances of cpuburn never really challenge my cpu. Does anyone know of something more stressful that works on Linux? Thanks much and kind regards Eberhard -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- with best regards from Russia -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [opensuse] how to burn my cpu?
Eberhard Roloff wrote: I am looking for an app that makes my CPU as hot as can be. zmd. Just add lots of sources, and it should stress your CPU quite well. -- Joe Morris Registered Linux user 231871 running openSUSE 10.2 x86_64 -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [opensuse] how to burn my cpu?
Hey, I googled, but only found cpuburn 1.4 While this works, it seems to be developed for PIII 450 machines. I have a rather modest machine by todays standards (P4, 2.8), but even starting multiple simultaneous instances of cpuburn never really challenge my cpu. Does anyone know of something more stressful that works on Linux? I can think of reaim, which simulates real-work workload, http://sourceforge.net/projects/re-aim-7/. But in your case it is maybe better to write some program that makes use of every part of the CPU, eg. cache cleaner (calculations with cache missing nearly 100%), vector calculations, useless register rotating ... BTW, if you found some please write to list :) Thanks much and kind regards Eberhard -- Patrick Kirsch - Quality Assurance Department SUSE Linux Products GmbH GF: Markus Rex, HRB 16746 (AG Nuernberg) -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [opensuse] how to burn my cpu?
On Thu, May 24, 2007 at 02:33:37PM +0200, Eberhard Roloff wrote: I am looking for an app that makes my CPU as hot as can be. Windows Vista. ;-) More seriously, perhaps running a couple of the distributed computing clients simultaneously - one (e.g. [EMAIL PROTECTED]) to hammer the FPU, and one (e.g. a key cracking client) to hammer the integer logic. -- David SmithWork Email: [EMAIL PROTECTED] STMicroelectronics Home Email: [EMAIL PROTECTED] Bristol, England GPG Key: 0xF13192F2 -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [opensuse] how to burn my cpu?
On Thursday 24 May 2007 14:33, Eberhard Roloff wrote: Hi, I am looking for an app that makes my CPU as hot as can be. This is to test various things that should make my PC silently running on a shoestring while staying stable as is. I googled, but only found cpuburn 1.4 While this works, it seems to be developed for PIII 450 machines. I have a rather modest machine by todays standards (P4, 2.8), but even starting multiple simultaneous instances of cpuburn never really challenge my cpu. Does anyone know of something more stressful that works on Linux? Thanks much and kind regards Eberhard take a look at lucifer (http://petertodd.ca/tech/lucifer/ ) -- /Rikard - email : [EMAIL PROTECTED] web : http://www.rikjoh.com mob:: +46 (0)763 19 76 25 Public PGP fingerprint 15 28 DF 78 67 98 B2 16 1F D3 FD C5 59 D4 B6 78 46 1C EE 56 pgpnysoiZouMS.pgp Description: PGP signature
Re: [opensuse] how to burn my cpu?
Eberhard Roloff wrote: Hi, I am looking for an app that makes my CPU as hot as can be. This is to test various things that should make my PC silently running on a shoestring while staying stable as is. I googled, but only found cpuburn 1.4 While this works, it seems to be developed for PIII 450 machines. I have a rather modest machine by todays standards (P4, 2.8), but even starting multiple simultaneous instances of cpuburn never really challenge my cpu. Does anyone know of something more stressful that works on Linux? Thanks much and kind regards Eberhard try cinelerra... a video editor, I never could make it run with my 512Mb ram. time ago it asked for a cluster of 40+ machines, now may be a quad cpu... jdd -- http://www.dodin.net http://gourmandises.orangeblog.fr/ -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [opensuse] how to burn my cpu?
Eberhard Roloff wrote: [...] I am looking for an app that makes my CPU as hot as can be. Compile the Linux kernel in an infinite loop with make's -j option for multiple jobs. Or use gcc source instead of the Linux kernel. In principle, this should test your CPU and RAM quite well. Th. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [opensuse] how to burn my cpu?
On Thursday 24 May 2007 07:33, Eberhard Roloff wrote: I am looking for an app that makes my CPU as hot as can be. This is to test various things that should make my PC silently running on a shoestring while staying stable as is. time echo scale=1010; 16*a(1/5)-4*a(1/239) |bc -lq The above will compute PI to 1000+ decimal places in about 300-400 ms on a modern PC. But, if you set scale sufficiently high say, 20 then the cpu will become quite warm... and will not damage anything. -- Kind regards, M Harris -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [opensuse] how to burn my cpu?
All these suggestions to run this or that application 'cause it runs the CPU utilization up to or near 100% are not really appropriate as true stress testers. The point of real CPU burn-in / stress test / thermal dissipation test programs is that they keep as much of the CPUs internal logic busy as possible. Arbitrary (and realistic, everyday) instruction mixes don't often do that. That's why specialized programs are written for this purpose. In addition to generating genuinely stressful instruction mixes, the good ones also verify the results, especially of arithmetic operations, to make sure the CPU is not generating erroneous results. If you really want to see what kind of thermal loads result or ensure that there are no anomalies in your CPU, then you should use one of the purpose-built stress testers. Randall Schulz -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [opensuse] how to burn my cpu?
On Thursday 24 May 2007 15:45, Randall R Schulz wrote: Arbitrary (and realistic, everyday) instruction mixes don't often do that. Yup, but the PI routine does... really. ... and its measurable (its amazing). -- Kind regards, M Harris -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [opensuse] how to burn my cpu?
M Harris wrote: On Thursday 24 May 2007 15:45, Randall R Schulz wrote: Arbitrary (and realistic, everyday) instruction mixes don't often do that. Yup, but the PI routine does... really. ... and its measurable (its amazing). Maybe you should try one of those infinite binary loops, that were so popular a few years back. They were supposedly able to trash a CPU! ;-) -- Use OpenOffice.org http://www.openoffice.org -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [opensuse] how to burn my cpu?
On Thursday 24 May 2007 17:08, James Knott wrote: Maybe you should try one of those infinite binary loops, that were so popular a few years back. They were supposedly able to trash a CPU! ;-) ... I've never actually been able to ruin a cpu that was properly sinked and vented... what the PI routine does not do is IO, not till its done anyway. But what it does do if scale is set high enough is to force the memory requirements off chip... so it exercises not just the ALU, but the bus logic as well... and it keeps those flops toggling long and fast which in turn draws lots of current which in turn creates lots of heat. Most of the time the processor in a linux machine is pretty much sitting there idle... that has always amazed me also -- Kind regards, M Harris -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [opensuse] how to burn my cpu?
M Harris wrote: On Thursday 24 May 2007 17:08, James Knott wrote: Maybe you should try one of those infinite binary loops, that were so popular a few years back. They were supposedly able to trash a CPU! ;-) ... I've never actually been able to ruin a cpu that was properly sinked and vented... what the PI routine does not do is IO, not till its done anyway. But what it does do if scale is set high enough is to force the memory requirements off chip... so it exercises not just the ALU, but the bus logic as well... and it keeps those flops toggling long and fast which in turn draws lots of current which in turn creates lots of heat. Most of the time the processor in a linux machine is pretty much sitting there idle... that has always amazed me also I guess you missed the ;-). That infinite binary loop was a bit of nonsense, that was going around a few years back. -- Use OpenOffice.org http://www.openoffice.org -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [opensuse] how to burn my cpu?
Thu, 24 May 2007, by [EMAIL PROTECTED]:
Hi,
I am looking for an app that makes my CPU as hot as can be.
Download and burn UBCD.
That has a good collection of tests for (almost) every piece of
hardware you can think of.
In the mean time, here's something that keeps the CPU busy for a
bit:
/*
* load50.c -- a simple busy-looping tool.
*
* Obviously, this runs with any kernel and any Unix
*/
#include stdio.h
#include stdlib.h
#include unistd.h
int main(int argc, char **argv)
{
int i, load=50;
if (argc==2) {
load=atoi(argv[1]);
}
printf(Bringing load to %i\n,load);
for (i=0; iload; i++)
if (fork()==0)
break;
while(1)
;
return 0;
}
I picked it up on news many moons ago, don't remember the author.
Theo
--
Theo v. WerkhovenRegistered Linux user# 99872 http://counter.li.org
ICBM 52 13 26N , 4 29 47E. + ICQ: 277217131
SUSE 10.2 + Jabber: [EMAIL PROTECTED]
Kernel 2.6.18 + See headers for PGP/GPG info.
Claimer: any email I receive will become my property. Disclaimers do not apply.
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
