Newbie compile & run issue with stockfish

Michiel Koorn · Post by **Michiel Koorn** » Mon Aug 23, 2010 6:29 pm

I just managed to get stockfish to compile in VS 2008 express. For me that is a first success. I ran it vs the downloaded version in arena. Nodes per second is lower by a factor 3-4. Clearly something is wrong, probably in compiler settings or else in arena. Anybody any suggestions?

jwes · Post by **jwes** » Mon Aug 23, 2010 6:41 pm

Michiel Koorn wrote:I just managed to get stockfish to compile in VS 2008 express. For me that is a first success. I ran it vs the downloaded version in arena. Nodes per second is lower by a factor 3-4. Clearly something is wrong, probably in compiler settings or else in arena. Anybody any suggestions?

Are you compiling a release version?

Eelco de Groot · Post by **Eelco de Groot** » Mon Aug 23, 2010 6:51 pm

Michiel Koorn wrote:I just managed to get stockfish to compile in VS 2008 express. For me that is a first success. I ran it vs the downloaded version in arena. Nodes per second is lower by a factor 3-4. Clearly something is wrong, probably in compiler settings or else in arena. Anybody any suggestions?

Hello Michiel,

Possibly you are running a debug version that includes all the Asserts in the code? At the top of the Visual C++ interface on the Toolbar after the green triangle (I have Visual C++ 2005 but should be similar) you can choose to build a Debug, or Release version. The Release version I estimated much faster though, I thought more than the factor three or four? But this is for Visual C++ 2005 and it is some time ago I made a Debug version.

Regards, Eelco

Michiel Koorn · Post by **Michiel Koorn** » Mon Aug 23, 2010 7:31 pm

I tried, both debug and release have the same issue.
Edit: ponder is off for both

Joost Buijs · Post by **Joost Buijs** » Mon Aug 23, 2010 7:56 pm

Michiel Koorn wrote:Nodes per second is lower by a factor 3-4. Clearly something is wrong, probably in compiler settings or else in arena. Anybody any suggestions?

Maybe it has something to do with 32 vs 64 bit?
According to the MS website the express version of C++ only supports 32 bits code generation.
I can also imagine that the optimizer of the express compiler is not as good as the one from the commercial compiler.

jwes · Post by **jwes** » Mon Aug 23, 2010 10:05 pm

I'm using visual studio 2005 express and my release version using all defaults is ~ 20% slower.

Michiel Koorn · Post by **Michiel Koorn** » Wed Aug 25, 2010 9:31 am

Using a different compiler seems to have solved this. Either the compiler itself or the settings, who knows. I don't care

Desperado · Post by **Desperado** » Wed Aug 25, 2010 10:01 am

Michiel Koorn wrote:Using a different compiler seems to have solved this. Either the compiler itself or the settings, who knows. I don't care

Which compiler do you use now ?

Michiel Koorn · Post by **Michiel Koorn** » Wed Aug 25, 2010 10:31 am

Desperado · Post by **Desperado** » Wed Aug 25, 2010 11:01 am

thx for reply.

By the way. it is possible to get 64-bit target compiles with
vs express 2008. but not by default.

you can find the information here:

http://jenshuebel.wordpress.com/2009/02 ... t-targets/

- first you need the windows sdk (download,install)
- second the registry entries must be updated (you can also find a
batch file to download (link above) which is doing the job).

michael

Newbie compile & run issue with stockfish

Newbie compile & run issue with stockfish

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Re: Newbie compile & run issue with stockfish

Re: Newbie compile & run issue with stockfish

Re: Newbie compile & run issue with stockfish

Re: Newbie compile & run issue with stockfish

Re: Newbie compile & run issue with stockfish

Re: Newbie compile & run issue with stockfish

Re: Newbie compile & run issue with stockfish

Re: Newbie compile & run issue with stockfish