Hutter prize candidate: decmprs8

[Matt Mahoney]

Alexander Ratushnyak updated his previous Hutter prize submission: decmprs8, replacing decomp8b. I verified that the program will output enwik8 from a program + archive of size 15,949,688 bytes on my laptop in 7608 seconds using 936 MB memory. The test machine was a Gateway M-7301U laptop with 2.0 GHz dual core Pentium T3200 (1MB L2 cache), 3 GB RAM, Vista SP1, 32 bit. Memory usage was checked with Windows Task Manager near the end of decompression.

http://cs.fit.edu/~mmahoney/compression/text.html#1323
(direct link http://cs.fit.edu/~mmahoney/compression/decmprs8.zip )

To decompress: decmprs8.exe archive8.dat enwik8

The submission was May 23, 2009. The 30 day public comment period ends June 22.

-- Matt Mahoney, matma...@yahoo.com

[James Bowery]

I've also verified AR's latest:

$ time ./decmprs8.exe archive8.dat enwik8

real    168m16.862s

user    0m0.015s

sys     0m0.000s

JamesBowery@Atlantis ~/Hutter/decmprs8

$ diff enwik8 ../enwik8

JamesBowery@Atlantis ~/Hutter/decmprs8

$

Dual AMD64 4600+ Windows Vista 64-bit with 3G RAM.