PIFAST Vs. Superpi?

Excelsior · Dec 11, 2004

Hey all. Ran into a bit of a problem.

http://www.ocforums.com/showthread.php?p=3280540

That thread has a background for what I'm doing. Basically, I like the fact that SuperPi has a GUI. Pifast is CLI, which I don't neccessarily like, also, pifast has me chose the alg. to use etc and such, which I don't neccessarily want to pick every time I boot up for these tests. I'd use SuperPi for this reason, BUT, with superpi the output log stores only the pi digits. Basically looking like this:

Code:

PI=3.

1415926535 8979323846 2643383279 5028841971 6939937510
5820974944 5923078164 0628620899 8628034825 3421170679
8214808651 3282306647 0938446095 5058223172 5359408128
4811174502 8410270193 8521105559 6446229489 5493038196
4428810975 6659334461 2847564823 3786783165 2712019091
4564856692 3460348610 4543266482 1339360726 0249141273
7245870066 0631558817 4881520920 9628292540 9171536436
7892590360 0113305305 4882046652 1384146951 9415116094
3305727036 5759591953 0921861173 8193261179 3105118548
0744623799 6274956735 1885752724 8912279381 8301194912
9833673362 4406566430 8602139494 6395224737 1907021798
6094370277 0539217176 2931767523 8467481846 7669405132
0005681271 4526356082 7785771342 7577896091 7363717872
1468440901 2249534301 4654958537 1050792279 6892589235
4201995611 2129021960 8640344181 5981362977 4771309960
5187072113 4999999837 2978049951 0597317328 1609631859
5024459455 3469083026 4252230825 3344685035 2619311881
7101000313 7838752886 5875332083 8142061717 7669147303
5982534904 2875546873 1159562863 8823537875 9375195778
1857780532 1712268066 1300192787 6611195909 2164201989

While Pifast is MUCH more in depth:

Code:

Program : PiFast version 4.3 (fix 1), by Xavier Gourdon
Computation of 200000 digits of Pi
Method used : Ramanujan
Size of FFT : 32 K
Physical memory used : ~ 2275 K
Disk memory used : ~ 0.00 Meg
------------------------------------------------------------
Computation run information :

Start : Sat Dec 11 15:21:43 2004
End   : Sat Dec 11 15:21:43 2004
Duration : 0.70 seconds
============================================================
Total computation time : 0.70 seconds (~ 0.00 hours)
============================================================
Pi with 200000 digits : 
Pi = 3.
1415926535 8979323846 2643383279 5028841971 6939937510  : 50
5820974944 5923078164 0628620899 8628034825 3421170679  : 100
8214808651 3282306647 0938446095 5058223172 5359408128  : 150
4811174502 8410270193 8521105559 6446229489 5493038196  : 200
4428810975 6659334461 2847564823 3786783165 2712019091  : 250
4564856692 3460348610 4543266482 1339360726 0249141273  : 300
7245870066 0631558817 4881520920 9628292540 9171536436  : 350
7892590360 0113305305 4882046652 1384146951 9415116094  : 400
3305727036 5759591953 0921861173 8193261179 3105118548  : 450
0744623799 6274956735 1885752724 8912279381 8301194912  : 500

Either A. I want to have someone show me a page on superpi's website, or anyone's that gives in depth information on which algorithm Super Pi uses

Or B. I want someone to tel me what alg. to use in Pifast, and all this info about "fft" size and teh such. Also should I use any disk space? or would that skew the results if I'm lookinga t cpu performance as opposed to the same system clocked slightly under.

PIFAST Vs. Superpi?

Excelsior

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