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Lossless Audio Compression => WavPack => Topic started by: Mangix on 2011-01-10 05:37:25

Title: Intel C++ Compiler Wavpack Binary
Post by: Mangix on 2011-01-10 05:37:25
does anyone know if one exists? i found an x64 compile for wavpack that is even slower than the stock. looking for one since i would like at least some speed improvement when encoding at x6.
Title: Intel C++ Compiler Wavpack Binary
Post by: lvqcl on 2011-01-10 11:28:06
I downloaded wavpack sources and compiled it with intel compiler 11.1.067. It is as fast as original .exe or (using different compiler options) crashes.
Title: Intel C++ Compiler Wavpack Binary
Post by: Pixar on 2011-01-14 15:17:10
I downloaded wavpack sources and compiled it with intel compiler 11.1.067. It is as fast as original .exe or (using different compiler options) crashes.

Maybe there is a version for many-core processors???
Title: Intel C++ Compiler Wavpack Binary
Post by: saratoga on 2011-01-14 16:27:13
I downloaded wavpack sources and compiled it with intel compiler 11.1.067. It is as fast as original .exe or (using different compiler options) crashes.

Maybe there is a version for many-core processors???


Run multiple instances at the same time.
Title: Intel C++ Compiler Wavpack Binary
Post by: Pixar on 2011-01-14 17:16:58
Quote
Run multiple instances at the same time.

how 
Code: [Select]
@for /F "delims=" %%S in ('dir /S /A-D /B *.wav') do @ (
@start /B /WAIT /LOW wavpack.exe -mihhb5x3 "%%~dpnS.wav" "%%~dpnS.wv"
@del "%%~dpnS.wav"
@echo ********************************************************************************
)
@for /F "delims=" %%S in ('dir /S /A-D /B *.flac') do @ (
@start /B /WAIT /LOW flac.exe -d -s "%%~dpnS.flac" -o - | wavpack.exe -mihhb5x3 - "%%~dpnS.wv"
@tag.exe --fromfile "%%~dpnS.flac" --ape2 "%%~dpnS.wv"
@del "%%~dpnS.flac"
@echo ********************************************************************************
)
@for /F "delims=" %%S in ('dir /S /A-D /B *.ape') do @ (
@start /B /WAIT /LOW mac.exe "%%~dpnS.ape" - -d | wavpack.exe -mihhb5x3 - "%%~dpnS.wv"
@tag.exe --fromfile "%%~dpnS.ape" --ape2 "%%~dpnS.wv"
@del "%%~dpnS.ape"
@echo ********************************************************************************
)

My script))
This script launch only one wavpack.exe
Title: Intel C++ Compiler Wavpack Binary
Post by: Mangix on 2011-01-23 04:37:48
I downloaded wavpack sources and compiled it with intel compiler 11.1.067. It is as fast as original .exe or (using different compiler options) crashes.

i thought intel's compiler produces faster binaries due to auto-vectorization of the exe.
Title: Intel C++ Compiler Wavpack Binary
Post by: bryant on 2011-01-24 06:26:10
It may be that because the WavPack code is so optimized for the MSVC compiler, there is no advantage to going to Intel’s, at least not without making other changes. I know that in the past this was the case.
Title: Intel C++ Compiler Wavpack Binary
Post by: polemon on 2011-01-26 16:54:54
I've done some assembly optimization for PAQ8 for x86_64, but only for time critical functions, the rest was compiled with a standard gcc.

If you really want to optimize, re-implement SSE compatible parts in assembly and assemble them with YASM. non-computing heavy code may be open for compiler optimization.
Title: Intel C++ Compiler Wavpack Binary
Post by: [JAZ] on 2011-01-26 19:17:40
There is no reason to use assembly when intrinsics are available.
Using intrinsics lets you write assembler like writing C, so there's no need for writing several assembler routines for the different compilers.
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