PAQ8HP9 released!

[LovePimple]

PAQ8HP9 has been released.

1. This paq8hp9.exe from paq8hp9.zip is build for -7 switch
(memory usage is ~940 Mb).
Should be used with -7:
paq8hp9.exe -7 archivename enwik8

2. After starting, its quietly decompressing the dictionary 2 or 3 minutes.

Download PAQ8HP9

[LovePimple]

There appears to be an update of PAQ8HP9 available.

Download PAQ8HP9_v0.zip

[Black_Fox1]

Thanks for the info!

[LovePimple]

There appears to be an update of PAQ8HP9 available.

Download PAQ8HP9_v0.zip

The "paq8hp9_v0.zip" file now appears to have been deleted.

[LovePimple]

PAQ8HP9any has been released.

1. paq8hp9.exe from paq8hp9.zip is build for -7 switch (RAM usage is ~940 Mb).
Should be used with -7:
paq8hp9.exe -7 archivename enwik8
After starting, its quietly decompressing the dictionary 2 or 3 minutes.

2. paq8hp9.exe from paq8hp9any.zip can use any of -0 ... -9 ;
after starting, its quietly compressing the dictionary first few minutes.

Download PAQ8HP9any

[Black_Fox1]

Does it mean that in earlier PAQ8HP9 versions it was irrelevant which switch was used?

[LovePimple]

Does it mean that in earlier PAQ8HP9 versions it was irrelevant which switch was used

I have no idea! Its something that you will have to test for if we dont get any more information from Alexander Rhatushnyak.

[Black_Fox1]

Its something that you will have to test for if we dont get any more information

I ask because -1 produced different result than -7 on the only file I tested with parameter other than -7

[LovePimple]

Perhaps -7 is the optimal setting for the ENWIK test.

[Matt Mahoney]

-7 is the maximum memory usage allowed for the Hutter prize. The decompressor has to run with 1 GB memory.

[Black_Fox1]

Perhaps -7 is the optimal setting for the ENWIK test.

I mean why is another version produced when the first one seems to use different -# settings already