How fast can your computer compute pi?

[dsmi]

Go here and find out!
http://myownlittleworld.com/pi/program.html
My 1700+ with Windows XP and 256mb SDRAM did it in 29.67 seconds.

[Hedgehogforprez]

What are you calculating? 512k I am getting 21s and 46 on 1m

[[OC]This]

yeah, like he says, many overclockers use superPi at 1 million digit calculation. my xp1700 does 38 sec.

[Gautam]

Mine does 42 sec, as far as I remember, for 1M calculation.

[spiritedandy]

ive looked and do not understand any off it :( :(

im on xp pro amd athlon

a few pointers please sorry :rolleyes:

[Tical]

In Super Pi on 1M mine does 40s.

[Tical]

Originally posted by spiritedandy
ive looked and do not understand any off it :( :(

im on xp pro amd athlon

a few pointers please sorry :rolleyes:

Pi is 3.14 but that's not exact, it's rounded to that number. Super Pi calculates it to however many digits you select in the screen & it shows it's progress as it calculates. It then gives you how long it took your CPU to calculate it out to that many digits. You can view the calculation in a .txt file in the directory where you ran Super Pi from as well.

[jrdobbs]

24.62 sec for 1m...gees my work computers rocks...stupid intel...
j/k

[spiritedandy]

i want to play as well ........

thanx Tical but im lost as to how to download it ......the site makes no sence at all to me so sorry :rolleyes:

[Maxvla]

program doesn't work :confused:

i double click to start it and nothing happens. :(

[spiritedandy]

ohhh not just me then :)

[Gautam]

[OC]This, Tical and I were talking about SuperPI, which can be found here (http://www16.big.or.jp/~bunnywk/superpi.html). Sorry for the threadjack.

The prog that dsmi linked to needs to be run in a command line. You run the program with how many digits you wish to calculate as a tag.

[method().man]

Well, that program didn't work for me either so I did a search on Pi programs and found that these are considered the fastest: http://home.istar.ca/~lyster/chart.html

With the fastest one on the chart, my computer calculated Pi to 1,000,000 places in:


Program : PiFast version 4.3 (fix 1), by Xavier Gourdon
Computation of 1000000 digits of Pi
Method used : Chudnovsky
Size of FFT : 32 K
Physical memory used : ~ 2100 K
Disk memory used : ~ 4.29 Meg
------------------------------------------------------------
Computation run information :

Start : Tue Aug 05 13:16:20 2003
End : Tue Aug 05 13:16:28 2003
Duration : 7.48 seconds

Time spent in disk swapping : 1 s (reading 0, writing 0)
================================================== ==========
Total computation time : 7.48 seconds (~ 0.00 hours)
================================================== ==========

[method().man]

Ok, I got the pi_fftc5 to work:


Calculation of PI using FFT and AGM, ver. LG1.1.2-MP1.5.2af.memsave
nfft= 262144
radix= 10000
error_margin= 0.00460427
mem_alloc_size= 9437304
calculating 1048576 digits of PI...
AGM iteration, time= 1, chksum= ffffdb4c
precision= 48, time= 1, chksum= fffff18d
precision= 80, time= 2, chksum= ffffe3e4
precision= 176, time= 2, chksum= ffffdd72
precision= 352, time= 3, chksum= ffffd78d
precision= 688, time= 3, chksum= ffffd47c
precision= 1392, time= 3, chksum= ffffd90c
precision= 2784, time= 4, chksum= fffff9ad
precision= 5584, time= 4, chksum= ffffc2dd
precision= 11168, time= 5, chksum= ffffcb7a
precision= 22336, time= 5, chksum= ffffe6b3
precision= 44688, time= 6, chksum= fffff96d
precision= 89408, time= 6, chksum= ffffed75
precision= 178816, time= 6, chksum= fffffbe5
precision= 357648, time= 7, chksum= ffffe715
precision= 715312, time= 7, chksum= fffff393
precision= 1430640, time= 8, chksum= ffffe44b
Total 8 sec. (real time), chksum= 3f99



Calculation of PI using FFT and AGM, ver. LG1.1.2-MP1.5.2af.memsave
nfft= 262144
radix= 10000
error_margin= 0.00460413
mem_alloc_size= 9437304
calculating 1048576 digits of PI...
AGM iteration, time= 0, chksum= ffffdb4c
precision= 48, time= 1, chksum= fffff18d
precision= 80, time= 2, chksum= ffffe3e4
precision= 176, time= 3, chksum= ffffdd72
precision= 352, time= 3, chksum= ffffd78d
precision= 688, time= 4, chksum= ffffd47c
precision= 1392, time= 5, chksum= ffffd90c
precision= 2784, time= 6, chksum= fffff9ad
precision= 5584, time= 6, chksum= ffffc2dd
precision= 11168, time= 7, chksum= ffffcb7a
precision= 22336, time= 8, chksum= ffffe6b3
precision= 44688, time= 9, chksum= fffff96d
precision= 89408, time= 9, chksum= ffffed75
precision= 178816, time= 10, chksum= fffffbe5
precision= 357648, time= 11, chksum= ffffe715
precision= 715312, time= 11, chksum= fffff393
precision= 1430640, time= 12, chksum= ffffe44b
Total 13 sec. (real time), chksum= 3f99


Calculation of PI using FFT and AGM, ver. LG1.1.2-MP1.5.2af.memswap
nfft= 262144
radix= 10000
error_margin= 0.00261936
mem_alloc_size= 3670068
calculating 1048576 digits of PI...
AGM iteration, time= 1, chksum= fffff158
precision= 48, time= 2, chksum= fffff2a6
precision= 80, time= 3, chksum= ffffe22a
precision= 176, time= 4, chksum= fffff4ff
precision= 352, time= 5, chksum= ffffc106
precision= 688, time= 6, chksum= fffffc91
precision= 1392, time= 7, chksum= ffffee31
precision= 2784, time= 8, chksum= fffffa89
precision= 5584, time= 9, chksum= ffffe3c5
precision= 11168, time= 10, chksum= ffffc73f
precision= 22336, time= 11, chksum= ffffed5e
precision= 44688, time= 12, chksum= ffffc4df
precision= 89408, time= 13, chksum= ffffd111
precision= 178816, time= 14, chksum= fffff2cc
precision= 357648, time= 15, chksum= ffff8643
precision= 715312, time= 16, chksum= ffff6a3b
precision= 1430640, time= 17, chksum= fffea5f1
Total 18 sec. (real time), chksum= ae5

Got a crapload of different versions, sorry :(

[spiritedandy]

:D :D

ahhhh thats better i understand now !

mine does 42 sec 220 fsb @ 2425 xp 2800+


andy:D

[gamefoo21]

1.02 min for 512k :( so like 2.04 min for 1m :cry:

[petery83]

47 seconds for 1M digits

[Quest For Speed]

For anyone interested HERE (http://img.hexus.net/hexus_pifast.rar) is a Pi benchmark that is very popular. There is a results page but it is currently down. A bat file is included with all the parameters. my best using it is 54.45 seconds.

[FunkDaMonkMan]

Mine was 1m 10s, but I was also playing wc3, listenint to music, chattin, browing, etc., etc. didn't slow anything down thought , b/c i'm on a dualie. Too bad these pi programs aren't SMP enabled.

[Chowdy]

45seconds on the rig in my sig

[Hawker-rider]

ok, but are we ALL using exactly the same pi-program now or not? as some of the other programs are just a ot faster as it is.

Maybe time to start a new thread with a specific pi-calc program. interesting!!!

[[OC]This]

Originally posted by Hawker-rider
ok, but are we ALL using exactly the same pi-program now or not? as some of the other programs are just a ot faster as it is.

Maybe time to start a new thread with a specific pi-calc program. interesting!!!
Two well-known Pies are: superPi and piFast

many people use superPi, which is a good program. I've been using it years ago.

piFast is also good. it is calcuated a bit differently than the superPi so you cannot compare the result between the two equally. Some people like pifast while the others like superPi better.
There is also hexus version of pifast, which is popular.

There are many other types of benchmarks and I also run calcum10. one of my favs.

[bigfoot]

using pi_css5 on my 1Ghz t-bird, i get 43.51 sec. w/ 1million

[AMD'er]

46S for me...got to update my sig but heres my sys..

XP2600@ 2331 256 HyperX

[AMD'er]

Originally posted by jrdobbs
24.62 sec for 1m...gees my work computers rocks...stupid intel...
j/k

whats ur setup...

[JDXNC]

Do I get a cookie for this? :p


C:\pi>pi_css5.i686 1000000
Calculation of PI using FFT and
initializing...
nfft= 262144
radix= 10000
error_margin= 0.00564615
calculating 1048576 digits of PI
AGM iteration
precision= 48: 1.27 sec
precision= 80: 1.30 sec
precision= 176: 1.27 sec
precision= 352: 1.28 sec
precision= 688: 1.30 sec
precision= 1392: 1.26 sec
precision= 2784: 1.27 sec
precision= 5584: 1.30 sec
precision= 11168: 1.27 sec
precision= 22336: 1.26 sec
precision= 44688: 1.31 sec
precision= 89408: 1.28 sec
precision= 178816: 1.26 sec
precision= 357648: 1.27 sec
precision= 715312: 1.30 sec
precision= 1430640: 1.26 sec
writing pi1048576.txt...
23.95 sec. (real time)

[[OC]This]

ok here you go boyz and galz.

piFastV41 = 53.48 sec. @ fastest setting @ 10 million digit @ 1024k

my xp1700 tbred @ 2785mhz (waterchilled only)


http://portfolio.iu.edu/skrska/2784mhz_piFast.png





http://portfolio.iu.edu/skrska/piFast_data.png



http://www.xtremesystems.org/forums/images/smilies/wiggle.gif

[method().man]

Damn dude, that's a crazy overclock. Nice setup you've got there :).

[[OC]This]

Originally posted by method().man
Damn dude, that's a crazy overclock. Nice setup you've got there :).
Thanks method man, i appreciate it. :)

[auky]

http://auky.freeyellow.com/pia.jpg

[Gnufsh]

Pi is the ratio of the circumfrence of a circle to it's diameter. It is a irrational number (like e), and so can never be exactly represented in decimal notation, or by a fraction. It is about 3.14159, but the digits go on infinitely.

[mattspalace]

41sec for 1M digits on my setup.

[aftermath]

i can do 2 in 1minute 14 sec and 1 minute 27 sec for the 1M calculation if i run one it takes 1 minute 22 seconds thats with superPI could not get the other to work.
and 36 for one 512k