Mersenne: Just curious
I'm just curious really, but how durable are Intel processors to continuous number crunching, in other words has anyone been able to keep the same processor running for 2, 3 or even more years, on a 24/7 basis. I do realise that Windows itself needs to be rebooted from time to time, but what about other O/S? Anyone care to throw a few stats in? Tony Gott Shetland _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: GIMPS and other distributed projects
On 18 Apr 00, at 0:34, Siegmar Szlavik wrote: I don't say that prime95/ntprime has a problem, just that it can make (serious) problems on some systems and they don't go away until it gets uninstalled. I don't think it has to do with a memory leak, because if it comes to the point where the system is no longer useable (for example it takes 20-30 seconds to start a program like the NT explorer) in the majority of the cases the system is already not useable directly after reboot. Ah, this _is_ a bit different. I take it you're running Win NT WS 4.0 SP 4+ (as I said before, you really _should_ be running SP 6a, but anything previous to SP 4 is definitely going to leave you open to numerous problems). Did you try disabling NTPrime (Control Panel/Services/Startup) so that it doesn't start automatically at boot time? Does this cure the problem? Does the problem reappear if you then manually start NTPrime with the system running "normally"? If the answer to _either_ of the last two questions is "no", then NTPrime isn't the problem. Does the incidence of the problem coincide with a great deal of disk activity, which doesn't die away after at most one minute but continues indefinitely? If so, this is a clear indication that the problem is being caused by a shortage of memory. How much memory is there in your system? If you're running NTPrime, the P-1 memory allocation isn't a factor since NTPrime v20 isn't yet released. However, if you're running LL tests on _big_ exponents, memory shortage could be crucial. NTPrime is going to use somewhere between 16 and 20 megabytes of _physical_ memory to run LL tests on "10 million digit" exponents. I wouldn't try to run LL tests on exponents much bigger than about 10 million on a system running NT with 64 MB (or less) of memory, unless there really was only a very occasional need for the system to run anything else. If you're tight on memory, you may find that switching to double-checking assignments cures your problem. I take it that you're not trying to do anything daft like running more instances of NTPrime/Prime95 (in total) than you have processors on the system. Running like this causes inefficiencies due to excess task switching and also consumes memory to no good purpose. Also I still think it's worth checking for unwanted intrusions (BackOrifice seems fashionable at the moment) and also removing any services like FindFast which appear to have very little value - certainly FindFast can cause so much disk activity that things pretty well grind to a halt for a while - _except_ CPU soak programs like Prime95/NTPrime which can use the cycles which would otherwise be wasted since the other, higher-priority processes are all waiting for disk activity to finish. This is a _big_ price to pay for something which _might_ (if you're exceptionally fortunate) help you to open a MS Office document a split second faster. BTW it's perfectly normal for the first instance of opening e.g. Windows Explorer to be slower than usual (though 20 seconds certainly sounds excessive!), since none of the various DLLs etc. required will be already in memory. On my system, during the first 5 minutes or so following a system boot, everything is unusually slow due to the activity of an anti-virus scanner. I'm prepared to live with this for the extra security it offers. Defragmenting the disk can make a major improvement to the speed at which applications open - you really need to use a quality defragmenter like Diskeeper (Executive Software) since you want to get the swap/page file and the index (directory) files (plus the MFT on a NTFS volume) properly organized, as well making the data files contiguous. I also find that it helps to fix the page/swap file size (Control Panel/System/Performance) so that the minimum maximum sizes are the same; the maximum of 128 MB and twice the system memory seems to be a sensible value to start with, if your system really needs more it will let you know! The idea is to prevent the page/swap file becoming excessively fragmented by cumulative allocation of extra chunks. Hope this is of some use to you! Regards Brian Beesley _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: Just curious
I've got four computers that have passed the 3 year mark and they run 24/7 (at 100% cpu) By the way - none of the computers I've retired over the years ,that have been running like this, have failed due to cpu or memory issues. Louis Towles [EMAIL PROTECTED] 404-589-1228 Photobooks Inc Suite A012 280 Elizabeth St Atlanta Ga 30307 - Original Message - From: "Tony Gott" [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, April 18, 2000 3:24 AM Subject: Mersenne: Just curious I'm just curious really, but how durable are Intel processors to continuous number crunching, in other words has anyone been able to keep the same processor running for 2, 3 or even more years, on a 24/7 basis. I do realise that Windows itself needs to be rebooted from time to time, but what about other O/S? Anyone care to throw a few stats in? Tony Gott Shetland _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: Just curious
Very durable. I have Original P-II/233's two years old still going, have been 24x7 since day one. I have P-166's that have been going for 3 or 4 years nonstop on either crunching primes or crunching DES. I even have a handful of P-100's, among the first original Pentiums, still going on double-checking, quite happily. I've never had a machine die that I could attribute to CPU failure. It's always been hard drive, motherboard, or just a plain inability to keep up with the assigned task, which eventually gets the machine replaced or upgraded. At 08:24 AM 4/18/00 +0100, you wrote: I'm just curious really, but how durable are Intel processors to continuous number crunching, in other words has anyone been able to keep the same processor running for 2, 3 or even more years, on a 24/7 basis. I do realise that Windows itself needs to be rebooted from time to time, but what about other O/S? Anyone care to throw a few stats in? Tony Gott Shetland _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Mersenne: Facelift (round 2)
Hi again, Summarizing the feedback from the first round: 5 votes for liking the new look, 2 votes against. 2 votes for frames, 7 votes against. 4 votes for too slow. Here's what's new this round. 1) I dumped the mouse rollover and replaced the 44 different menu gifs with one navbar gif. This should help our European friends suffering from slow load times due to downloading separate gif files. 2) The text now wraps around the navbar. Some found the white space below the navbar ugly. I'm not convinced this is any better. 3) The status table should display OK in netscape. 4) The MSIE improperly terminated string bug is not fixed. I actually think its a bug in MSIE. 5) I added alt tags to all IMG entries. 6) The icons at the bottom of prime.htm are in a neat little row - thanks to someone that suggested putting them in a table. Here are the big open issues. I've not decided how to resolve them. 1) I really wanted the menu to stay fixed in a frame (I like being able to navigate anywhere in the site with one click and no scrolling), but sentiment against frames is quite strong. Also the current navbar doesn't fit in all screens (its 623 pixels high). I could offer a frames, non-frames, and text-only versions without too much trouble. 2) The status and benchmark pages - the most difficult to convert to the new style - now have trouble fitting in the browser window. I can try smaller fonts or add enough text above the tables so that they appear below the navbar. 3) A redesigned banner at the top of every page. Many others have remarked how they too are poor graphic artists! 4) And, of course, organizing the content! Along with displaying it in pleasing fonts and colors on a compatible background. The latest incarnations can be viewed at: http://www.mersenne.org/newhtml/prime.htm and http://www.mersenne.org/newhtml/status.htm and http://www.mersenne.org/newhtml/bench.htm More comments are of course welcome! Thanks again, George
Re: Mersenne: Facelift (round 2)
George, I think you are on the right track. Take a look at this web site for an example of what can be done without frames but still have a nice looking side menu on all pages. Tables, Tables, Tables. http://www.counter-strike.net PS: Ingore the content. Alan On 18 Apr 2000, at 10:55, George Woltman wrote: Date sent: Tue, 18 Apr 2000 10:55:34 -0400 To: [EMAIL PROTECTED] From: George Woltman [EMAIL PROTECTED]> Subject: Mersenne: Facelift (round 2) Hi again, Summarizing the feedback from the first round: 5 votes for liking the new look, 2 votes against. 2 votes for frames, 7 votes against. 4 votes for too slow. Here's what's new this round. 1) I dumped the mouse rollover and replaced the 44 different menu gifs with one navbar gif. This should help our European friends suffering from slow load times due to downloading separate gif files. 2) The text now wraps around the navbar. Some found the white space below the navbar ugly. I'm not convinced this is any better. 3) The status table should display OK in netscape. 4) The MSIE improperly terminated string bug is not fixed. I actually think its a bug in MSIE. 5) I added alt tags to all IMG> entries. 6) The icons at the bottom of prime.htm are in a neat little row - thanks to someone that suggested putting them in a table. Here are the big open issues. I've not decided how to resolve them. 1) I really wanted the menu to stay fixed in a frame (I like being able to navigate anywhere in the site with one click and no scrolling), but sentiment against frames is quite strong. Also the current navbar doesn't fit in all screens (its 623 pixels high). I could offer a frames, non-frames, and text-only versions without too much trouble. 2) The status and benchmark pages - the most difficult to convert to the new style - now have trouble fitting in the browser window. I can try smaller fonts or add enough text above the tables so that they appear below the navbar. 3) A redesigned banner at the top of every page. Many others have remarked how they too are poor graphic artists! 4) And, of course, organizing the content! Along with displaying it in pleasing fonts and colors on a compatible background. The latest incarnations can be viewed at: ersenne.org/newhtml/prime.htm" eudora=ersenne.org/newhtml/prime.htm" eudora="autourl"htm ,,FF00>href="http://www.mersenne.org/newhtml/status.htm" eudora="autourl"htm ,,FF0r>href="http://www.mersenne.org/newhtml/bench.htm" eudora="autourl"htm More comments are Thanks again, George "A programmer is a person who turns coffee into software." Alan R. Vidmar Assistant Director of IT Office of Financial AidUniversity of Colorado [EMAIL PROTECTED](303)492-3598 *** This message printed with 100% recycled electrons *** _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Mersenne: New mersenne.html MMPstats.txt, DB.nf bug fix
I've just updated my mersenne.html page, mostly by adding a new section of "quick links" near the top that point to other people's sites, including a new one for the factoring status of Fermat numbers maintained by Jocelyn Larouche. I also updated the data on M(M(p)) factoring progress and added a link pointing to the new Fermat number page from it as well. The only new data is from Tony Forbes, I believe. Lastly, a bug in my update scripts that affected the contents of the DB.nf file has been fixed. DB.nf lists the trial factoring progress for all Mersenne numbers with prime exponents that are known to be composite but for which we have no known factors. The bug caused some exponents that should have been included to be skipped, including M(727). Will http://www.garlic.com/~wedgingt/mersenne.html Mersenne number info, software http://www.garlic.com/~wedgingt/MMPstats.txtData on M(M(p)) factoring http://www.garlic.com/~wedgingt/mersdata.tgzData on M(n), tar'd gzip'd http://www.garlic.com/~wedgingt/mersdata.zipSame, zip'd _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: Facelift (round 2)
Hi Chip,
At 02:17 PM 4/18/00 -0400, Chip Lynch wrote:
I'm a bit late,
but helpful.
Keen. But this makes navigation tough for people who turn off images (or
use lynx)... with separate images, each image's alt tag becomes a link.
With an imagemap, it's customary I think to put a navigation list at the
top or bottom of the page, normally delimited by pipes ("|") of the
options.
Good point. I'll add it.
2) The text now wraps around the navbar. Some found the white space
below the navbar ugly. I'm not convinced this is any better.
Count my vote for the old way, but it's not a real strong vote. I guess
we use space better with the wrapping on. Both look acceptable.
How about www.microsoft.com which has dropdown menus from the
banner at the top of the page. Or do what www.netflix.com and
www.teletrade.com do put the actual choices in the top banner - although
with 18 different menu choices, I probably have too many and would
need to rethink my site layout.
4) The MSIE improperly terminated string bug is not fixed. I actually
think its a bug in MSIE.
Examining the source, there are three offending lines in the source code:
x2="img
src='http://hg1.hitbox.com/HG?hc=w147cd=1hb=WQ50041406EA90EN0n=Main+Page
";
Thanks. I thought the bug was the embedded single quote. However the
bug was in the quick and dirty program I threw together to support #include
in HTML files.
Consider making the NAV Bar smaller. Maybe decrease the font on the blue
links by a couple of points.
OK - assuming the horizontal nav bar isn't better.
I agree with the anti-frames sentiment, tho. I have no real objections to
multiple pages, but people generally stick with what they're given unless
compelled not to,
True, the anti-frames folks are more apt to grumble about the frames
than locate and click the "non-frames" button.
I'm sure there's a way to force them beneath the NAV bar, but I can't
think of it... used to have this sort of problem all the time. Have you
tried an HR or a solid BREAK tag?
I read this somewhere br clear="all" or some such.
Thanks,
George
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Re: Mersenne: Facelift (round 2)
I'm sure there's a way to force them beneath the NAV bar, but I can't think of it... used to have this sort of problem all the time. Have you tried an HR or a solid BREAK tag? I read this somewhere br clear="all" or some such. thats exactly it. that forces the next line to start below the graphic. Note this next line is still part of the same paragraph. -jrp _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Mersenne: Re: Facelift (round 2)
On Tue, Apr 18, 2000 at 09:54:08AM -0600, Alan Vidmar wrote: I think you are on the right track. Take a look at this web site for an example of what can be done without frames but still have a nice looking side menu on all pages. Tables, Tables, Tables. What about CSS? Take a look at http://zicon.cjb.net/ -- no frames, no FONT tags, no tables, but it still looks great. /* Steinar */ -- Homepage: http://members.xoom.com/sneeze/ _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: Re: Facelift (round 2)
What about CSS? Take a look at http://zicon.cjb.net/ -- no frames, no FONT tags, no tables, but it still looks great. unluckily, only MSIE seems to implement CSS properly. Netscape is way behind. Personally, I like to design my webpages so they work just fine on NS 3.0 or IE4. I avoid as many bells and whistles as possible, mouseovers etc are just so much silliness. I also dislike frames, and prefer to use a table based server-side include based layout... Of course, this makes your page source dependant on the particular web server, but that at least is something you have control over, there's no control over what browser the user will have. -jrp _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Mersenne: Re: Facelift (round 2)
On Tue, Apr 18, 2000 at 02:17:54PM -0400, Chip Lynch wrote: I'm sure there's a way to force them beneath the NAV bar, but I can't think of it... used to have this sort of problem all the time. Have you tried an HR or a solid BREAK tag? I'm rnning out of time to experiment myself. What about br clear="both" or something like that? /* Steinar */ -- Homepage: http://members.xoom.com/sneeze/ _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Mersenne: Re: Facelift (round 2)
On Tue, Apr 18, 2000 at 08:50:10PM +0200, Hoogendoorn, Sander wrote: If you use a seperate frame for the menu you only need to download the gifs once This should have been done by the browser cache anyway. A browser without a cache today is, well, quite useless. /* Steinar */ -- Homepage: http://members.xoom.com/sneeze/ _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Mersenne: Re: Facelift (round 2)
On Tue, Apr 18, 2000 at 03:24:40PM -0400, George Woltman wrote: How about www.microsoft.com which has dropdown menus from the banner at the top of the page. Isn't that some weird kind of ActiveX or other Microsoft proprietary tech? I read this somewhere br clear="all" or some such. Not `all', `both'. /* Steinar */ -- Homepage: http://members.xoom.com/sneeze/ _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Mersenne Digest V1 #720
Mersenne DigestTuesday, April 18 2000Volume 01 : Number 720 -- Date: Mon, 17 Apr 2000 11:01:17 -0400 From: Pierre Abbat [EMAIL PROTECTED] Subject: Re: Mersenne: V20 beta #3 A question to all you linux users with modems: I assume that the /proc/net/route file exists when you are not connected. Let me know if this is not the case (I'll need to change the default setting of RouteRequired above). I have a modem and an Ethernet card on one box. The file exists whether I'm on or off line, but the "ppp0" lines are there only when I'm on line. To tell when you're on line, look for a gateway in the "Flags" column, which says 4003 for the gateway and 1 for an Ethernet connection. (I don't know which bit means gateway.) This will work only if the dialup machine is the one running mprime. If mprime is behind an IPmasq box, you have to ask the IPmasq box if it's online. phma _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers -- Date: Mon, 17 Apr 2000 13:46:04 From: Bryon Buck [EMAIL PROTECTED] Subject: Re: Mersenne: Facelift At 11:33 PM 04/16/2000 -0400, George Woltman wrote: 1) Is this an improvement? Yes! The left-hand navigational graphics are a big bonus. Being able to navigate to anywhere from anywhere is a must. 5) Would you rather I use frames so the menu does not scroll? Yes. That will make navigation even easier. However, I think that your navigation frame will still scroll a bit given the size of the graphics. Take care, - --buck - -- Bryon Buck The Meyhem Project http://solaris1.mysolution.com/~fwzete ICQ: 4890668 _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers -- Date: Mon, 17 Apr 2000 17:41:24 EDT From: [EMAIL PROTECTED] Subject: Mersenne: New HTML, etc. Hi, Mr. Woltman. The side buttons on the new page are really quite nifty. 2) Can someone come up with a spiffier banner? I have a bunch of banners you can use. :-) By the way, Mr. Kurowski, it's been a while since I updated them. Are they too outdated? MSIE 5 also reports a problem with the script on that page. Just a couple more months until I find out how I did on my Extended Essay... :-D Stephan "Caltech for me!" Lavavej _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers -- Date: Tue, 18 Apr 2000 00:34:15 +0100 From: "Siegmar Szlavik" [EMAIL PROTECTED] Subject: Re: Mersenne: GIMPS and other distributed projects On Mon, 17 Apr 2000 15:39:57 -, Brian J. Beesley wrote: If what you mean is, tap the screensaver API and make prime95 execute only if the screensaver is/would be active, then fair enough, I'll support that - provided it's an option. (This is rather similar to mprime running under linux starting stopping depending on loadavg) exactly. Such an option would be very useful for systems which are used only once in a while, but when they are used, no resources should go to prime95/ntprime. [...] Basically, what I'm saying is that your systems seem to be getting into a state they shouldn't, and I don't think Prime95/NTPrime is playing a part in this. You're seeing Prime95/NTPrime taking a big slice of CPU time on a system that appears to be choked up, but that's because it's about the only thing wnating CPU time left in a runnable state, not a result of the system being overwhelmed by its demands. In other words, Prime95/NTPrime is being blamed for a problem which would exist anyway. The problem needs to be fixed, not what is only a symptom of the problem, and very probably an incorrectly interpreted symptom at that. I don't say that prime95/ntprime has a problem, just that it can make (serious) problems on some systems and they don't go away until it gets uninstalled. I don't think it has to do with a memory leak, because if it comes to the point where the system is no longer useable (for example it takes 20-30 seconds to start a program like the NT explorer) in the majority of the cases the system is already not useable directly after reboot. regards, Siegmar _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers -- Date: Tue, 18 Apr 2000 08:24:24 +0100 From: "Tony Gott" [EMAIL PROTECTED] Subject: Mersenne: Just curious I'm just curious really, but how durable are Intel processors to continuous
Mersenne: Re: Zicon
On Tue, Apr 18, 2000 at 01:30:25PM -0700, Luke Welsh wrote: Looks like shit in Netscape 4.7 :-( I know -- she's fixing it ATM. My own page (take a look at the `secret' URL http://members.xoom.com/sneeze/redesign/) should work in 4.7, but not in IE. However, I've got a version that works in _both_ IE5, NS4 _and_ Opera here :-) /* Steinar */ -- Homepage: http://members.xoom.com/sneeze/ _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Mersenne: Re: Mersenne Digest V1 #720
From: Pierre Abbat [EMAIL PROTECTED] To tell when you're on line, look for a gateway in the "Flags" column, which says 4003 for the gateway and 1 for an Ethernet connection. (I don't know whic h bit means gateway.) This will work only if the dialup machine is the one running mprime. If mprime is behind an IPmasq box, you have to ask the IPmasq box if it's online. None of my routes fit this description. However, as you can see, the machine is online. :) On a side note, alot of multipart posts (especially html) have been floating around lately. I'd like to remind everyone that at least for some of us reading the digest, that's a real nusiance. What disturbed me most this time though, was some non latin1 characters in the digest. The html I can at least scroll past, but could we please keep the control characters to a minimum? _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: Just curious
When pentium pro 200's were the hot new processor (in speed, more so than in wattage), I began running some dual-ppro-200 systems with two prime95 instances each. Those processors are still running it. I've never had to replace a cpu or motherboard (though occasionally a motherboard power connector had to be replaced because it burned up). I'm not sure but I think that's three years. Uptimes for these NT systems were averaging 6 months between reboots, though that has dropped some since the UPSes that power them are aging and so power is less reliable now. I've had a dual-pentium-200-mmx running NT4, and dual prime95 instances, 2 years solid also; the last boot of that system was August 12. I'm sure you'll hear from others, that these durations are not remarkable. Some may advocate other OS's. (I've also run Vaxes for 6-9 months uptime, and power and hardware reliability application of OS updates was similarly controlling there. Even network switches will occasionally get in funny modes after some months.) The error detection built into prime95 has been useful in identifying some systems where memory simms or motherboards were going flaky, months before the end user noticed it. Ken At 08:24 AM 4/18/2000 +0100, you wrote: I'm just curious really, but how durable are Intel processors to continuous number crunching, in other words has anyone been able to keep the same processor running for 2, 3 or even more years, on a 24/7 basis. I do realise that Windows itself needs to be rebooted from time to time, but what about other O/S? Anyone care to throw a few stats in? Tony Gott Shetland _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Mersenne: Re: Facelift (round 2)
On Tue, Apr 18, 2000 at 02:32:01PM -0700, John R Pierce wrote: actually, I believe its done with client side JavaScript. Anyways, it doesn't work in NS, and NS _invented_ JS ;-) /* Steinar */ -- Homepage: http://members.xoom.com/sneeze/ _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: Re: Facelift (round 2)
Steinar H. Gunderson wrote:
On Tue, Apr 18, 2000 at 02:32:01PM -0700, John R Pierce wrote:
actually, I believe its done with client side JavaScript.
Anyways, it doesn't work in NS, and NS _invented_ JS ;-)
That's because the way MS wrote the JS...
MS has a variable for the drop-down toolbar menu that's
initialized as false. They then check to see if the browser
is MSIE, and if it is, changes the variable to true. If is
isn't, it leaves it as false, and the drop-down toolbar isn't
displayed...
BTW, MS also claims it isn't displayed because of a bug in NS,
which isn't true, since they don't check and change the variable
if NS (or any other browser) is used...
From MS' JS:
var ToolBar_Supported = false;
if (navigator.userAgent.indexOf("MSIE")!= -1
navigator.userAgent.indexOf("Windows") != -1
navigator.appVersion.substring(0,1) 3)
{
ToolBar_Supported = true;
}
Eric
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Re: Mersenne: Just curious
When pentium pro 200's were the hot new processor (in speed, more so than in wattage), I began running some dual-ppro-200 systems with two prime95 instances each. Those processors are still running it. I've never had to replace a cpu or motherboard (though occasionally a motherboard power connector had to be replaced because it burned up). I'm not sure but I think that's three years. ... Until last August, my *original* Prime95 participant, a Pentium-100 running first Win95, later Win98, faithfully chugged along 24/7. I started this CPU back when the very first Mersenne article came out in the San Jose Mecury News. This was long before GIMPS had found a prime.Since this win95 box's only other duty was print-server for a old inkjet, and the very occasional fax, it went a month or more between reboots regularly. Said machine is still alive and well, only now its a 133MHz 64MB ram linux based internet server for my DSL connection. http://hogranch.com :) The P100 was new when the first 133Mhz pentiums were becoming available and the 90s and 100s got a lot cheaper. Off the top of my head, I think it might be 5+ years old. And, yes, I have a dual PPro-200 which has been running prime95 24/7 since it was built 3 years ago. -jrp _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
