New Multi-Threaded Pi Program - Faster than SuperPi and PiFast

[amrgb]

When you don't have enough memory, it depends a lot on the storage speed. See my 25B computation below. The average CPU utilization was 170% instead of close to 800%. This was more of a hard drive test than anything else.

25B, i7 950 @ 4.3Ghz, 24GB ram @ 1790Mhz, 22GB ram, rest on a single 1TB Samsung F3 (after seeing the 10B, I wasn't wear the SSD on this one )

Validation Version:    1.1

Program:               y-cruncher - Gamma to the eXtReMe!!!     ( www.numberworld.org )
                       Copyright 2008-2010 Alexander J. Yee    ( a-yee@northwestern.edu )


User:                  None Specified - You can edit this in "Username.txt".


Processor(s):          Intel(R) Core(TM) i7 CPU 950 @ 3.07GHz
Logical Cores:         8
Physical Memory:       25,768,148,992 bytes  ( 24.0 GB )
CPU Frequency:         4,117,551,535 Hz

Program Version:       0.5.4 Build 9148 (fix 1) (x64 SSE4.1 - Windows ~ Ushio)
Constant:              Pi
Algorithm:             Chudnovsky Formula
Decimal Digits:        25,000,000,000
Hexadecimal Digits:    20,762,050,594
Threading Mode:        8 threads
Computation Mode:      Advanced Swap
Swap Disks:            1
Working Memory:        22.0 GB

Start Date:            Mon Dec 13 19:14:06 2010
End Date:              Tue Dec 14 11:03:58 2010

Computation Time:      40,300.927 seconds   (since checkpoint)
Total Time:            44,156.745 seconds   (since checkpoint)

CPU Utilization:           178.50 %   (since checkpoint)
Multi-core Efficiency:     22.31 %   (since checkpoint)

Last Digits:
2448547079 5329693979 7145627081 9204187454 9483487803  :  24,999,999,950
1309759846 5364560010 7388984278 8403481193 9913806533  :  25,000,000,000

Timer Sanity Check:        N/A
Frequency Sanity Check:    N/A
ECC Recovered Errors:      0
Checkpoint From:           ycr_checkpoint_BS_2.sf

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Checksum:   3c98d2a490fdee8e05440e41d7ccff5ca1892d3f9f7ea44d1ae869acb5cab79e

Edit: Dammit, I only noticed now that it counts time elapsed since the checkpoint I had to stop it for a few minutes to use the computer. This was at 22.45PM, so the total time was around 14.7 hours. Anyway, it may not count for the top, but I did it.