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

[spdycpu]

Awesome



So the summary for Core 2 vs. Phenom II. (for y-cruncher)


Single-threaded (arithmetic speed test):

Phenom II @ 3.2 GHz - 55.1057
Core 2 Quad (12MB cache) @ 3.2 GHz - 49.5219


Multi-threaded (arithmetic + bandwidth test):

Phenom II @ 3.2 GHz - 15.455
Core 2 Quad (12MB cache) @ 3.2 GHz - 13.9467


If we did these runs on Q6600 @ 3.2 GHz, that'll also settle issue of cache size.

The two Q6600s that are already on the list are from v0.3.2.

i7 @ 3.2GHz, 3.6GHz Uncore, Memory @ 1600 7-7-6-16.

Single:

Benchmark Successful. The digits appear to be OK.

Program Version:    0.4.1 Build 7408 (x64 SSE3)
Processor(s):       Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz
CPU Frequency:      3,192,005,951 Hz  (frequency may be inaccurate)
Thread(s):          1
Digits:             25,000,000
Total Time:         44.5555 seconds
Checksum:           506bd9db81dfe73a07ae66fb5da8af7e

Multi (with HT):

Benchmark Successful. The digits appear to be OK.

Program Version:    0.4.1 Build 7408 (x64 SSE3)
Processor(s):       Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz
CPU Frequency:      3,192,005,119 Hz  (frequency may be inaccurate)
Thread(s):          8
Digits:             25,000,000
Total Time:         11.4947 seconds
Checksum:           d2ec2f25569fffbd04422301296a783b