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Re: [Bug-gnubg] 50% decrease in evaluation speed

From: Jonathan Kinsey
Subject: Re: [Bug-gnubg] 50% decrease in evaluation speed
Date: Mon, 06 Nov 2006 22:27:31 +0000
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv: Gecko/20060909 Thunderbird/ Mnenhy/

address@hidden wrote:
>> I'm not sure how MaxMaini's builds are built (since I build my own),
>> but I guess he builds with SSE. Jon even made a system such that
>> the program detects if SSE is available runtime and the sets a
>> pointer to the right evaluation function. In that way we can build
>> SSE binaries, and still be able to execute it on computers without
>> SSE registers available.
>> MaxMaini: Can you tell us whcich switches you're using?
> As Christian said :
>> a) USE_SSE_VECTORIZE  should NOT be commented
>> b) REDUCTION_CODE should be commented

I just built it here on a clean machine and get the same speed as the
latest .exe.

Trying with and without REDUCTION_CODE set has little effect for me.


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