Re: Mersenne: Java/javascript anyone?
In my preceding message, change: the EFF $150,000 prize for a prime >10^8) to: the EFF $150,000 prize for a prime with >=10^8 decimal digits) :-} _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: Java/javascript anyone?
Eric Hahn wrote: > I'm converting the numerous 'if' statements into an array lookup, > and making it calculate out more than just days... In case you're referring to incorporating calendar knowledge so that you can deliver year-month-day completion predictions, don't forget that the Gregorian calendar doesn't have leap years when the year number is divisible by 100 but not 400. So 2100, 2200, and 2300 (for those 286s working on the EFF $150,000 prize for a prime >10^8) will not be leap years, but 2400 will be. Let's nip Y2.1K errors in the bud. :-) _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: Java/javascript anyone?
Yes, this can definitely be done in JavaScript that works in both IE and Netscape. I am willing to write the code, but I won't have time until about May 5th or so because I have exams and that type of stuff occupying my time for the next week. At 22:41 26/04/00 -0400, you wrote: >Hi, > > I sent this a few days ago, but it seems to have gotten lost... > > In my new benchmarking page I'd like to create a form that >takes CPU type, CPU speed, and exponent and returns the estimated >number of days to complete the exponent. I hope this will help newcomers >understand how much effort is required before joining GIMPS. > Can this be done in Javascript (both MSIE and Netscape)? Can >it be done on the client side (i.e without a "Submit" button and CGI)? >If so, would someone care to volunteer to write the necessary script >using three or four lines from the http://www.mersenne.org/bench.htm >table and I'll fill in the rest? > >Thanks, >George > >_ >Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm >Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers > > Nick Glover: [EMAIL PROTECTED] ICQ UIN: 3463696 Computer Science, Clemson University Homepage: http://hubcap.clemson.edu/~nglover/ "It's good to be open-minded, but not so open that your brains fall out." - Jacob Needleman _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: Java/javascript anyone?
George Woltman wrote: > In my new benchmarking page I'd like to create a form that >takes CPU type, CPU speed, and exponent and returns the estimated >number of days to complete the exponent. I hope this will help >newcomers understand how much effort is required before joining >GIMPS. > Can this be done in Javascript (both MSIE and Netscape)? >Can it be done on the client side (i.e without a "Submit" button >and CGI)? >If so, would someone care to volunteer to write the necessary script >using three or four lines from the http://www.mersenne.org/bench.htm >table and I'll fill in the rest? George, I've come up with a dynamic javascript form for the purpose. It needs a little more work to be done. I'm converting the numerous 'if' statements into an array lookup, and making it calculate out more than just days... I should have it fixed up within two or three days I'll send it to you when it's finished to your opinion at that time! Eric _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: Java/javascript anyone?
That's correct in calculations. That's how I calculated my own time, independent of the computer. Since it said it was going at 1.75 seconds per iteration, and there were 9025267 iterations to go, I just multiplied 1.75 by 9025267, and rounded high (knowing I'd be stopping every now and then), and used my TI-85 to turn that into days. That just divides the number by 86400. So it said I had to take 182.8034222 More days till the end. Finally, considering that the whole thing started March 10th, I went to the calendar, and counted out 183 days. I think that you can calculate that, in Java. Anyway, my calculations said that I'd be done some time around September the eleventh. Of course, I wanted to know when, so I took 182.8034222, and took the whole think mod 1, giving the fraction .8034222, which I converted back to hours, by multiplying by 24, giving 19.2773. so, it would be 19 hours from when I started, that being the basis of my calculation. This I took mod 1, giving .2773 which I multiplied by 60, to give the number of minutes, giving 16.4 , so I knew there would be 16 minutes. This I also took mod 1, giving .4, which I multiplied by 60, giving 24 seconds from when I started. PS I also started learning Java a little bit ago, and I may be able to help, but not until summer. Marko Man _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: Java/javascript anyone?
Kevin Sexton wrote: George Woltman wrote: > > Hi, > > I sent this a few days ago, but it seems to have gotten lost... > > In my new benchmarking page I'd like to create a form that > takes CPU type, CPU speed, and exponent and returns the estimated > number of days to complete the exponent. I hope this will help newcomers > understand how much effort is required before joining GIMPS. > Can this be done in Javascript (both MSIE and Netscape)? Can > it be done on the client side (i.e without a "Submit" button and CGI)? > If so, would someone care to volunteer to write the necessary script > using three or four lines from the http://www.mersenne.org/bench.htm > table and I'll fill in the rest? > > Thanks, > George > > _ > Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm > Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers One short question, I might be able to figure it out myself, but it's late, and I'm lazy right now, but how is the estimated time calculated? for example for a P-II 400 on a 7.73M to 9.02M exponent the timing is 0.252 How would the days be calculated? _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers I do these calculations ad nauseam like this: say 8M *.252 gives the total number of seconds (best case!). Then divide by 86400, the number of seconds on a day, and get 2016000 / 86400 = 23.3 days. Now calculate CPU hours per day (homework) :-) Unless, of course, I'm even more tired than you are Selah! Stefanovic
Re: Mersenne: Java/javascript anyone?
George Woltman wrote: > > Hi, > > I sent this a few days ago, but it seems to have gotten lost... > > In my new benchmarking page I'd like to create a form that > takes CPU type, CPU speed, and exponent and returns the estimated > number of days to complete the exponent. I hope this will help newcomers > understand how much effort is required before joining GIMPS. > Can this be done in Javascript (both MSIE and Netscape)? Can > it be done on the client side (i.e without a "Submit" button and CGI)? > If so, would someone care to volunteer to write the necessary script > using three or four lines from the http://www.mersenne.org/bench.htm > table and I'll fill in the rest? > > Thanks, > George > > _ > Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm > Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers One short question, I might be able to figure it out myself, but it's late, and I'm lazy right now, but how is the estimated time calculated? for example for a P-II 400 on a 7.73M to 9.02M exponent the timing is 0.252 How would the days be calculated? _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Mersenne: Java/javascript anyone?
Hi, I sent this a few days ago, but it seems to have gotten lost... In my new benchmarking page I'd like to create a form that takes CPU type, CPU speed, and exponent and returns the estimated number of days to complete the exponent. I hope this will help newcomers understand how much effort is required before joining GIMPS. Can this be done in Javascript (both MSIE and Netscape)? Can it be done on the client side (i.e without a "Submit" button and CGI)? If so, would someone care to volunteer to write the necessary script using three or four lines from the http://www.mersenne.org/bench.htm table and I'll fill in the rest? Thanks, George _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
