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Subject: Intel 8 vs MSVC 6 /w Crafty

Author: Peter Skinner

Date: 01:18:38 02/16/04


I was reading alot of the posts lately and I thought I would try the same as
others with Crafty. I finally got Crafty to compile correctly after making my
own makefile, and well winging it :)

Here are the results of both compilers with a non-smp and smp build:

Intel 8 SMP Build

Initializing multiple threads.
System is SMP, not NUMA.
EPD Kit revision date: 1996.04.21
unable to open book file [./book.bin].
book is disabled
unable to open book file [./books.bin].

Crafty v19.10 (1 cpus)

White(1): bench
Running benchmark. . .
......
Total nodes: 89942714
Raw nodes per second: 768741
Total elapsed time: 117
SMP time-to-ply measurement: 5.470085
White(1):

Intel 8 Non-SMP BUild

EPD Kit revision date: 1996.04.21
unable to open book file [./book.bin].
book is disabled
unable to open book file [./books.bin].

Crafty v19.10

White(1): bench
Running benchmark. . .
......
Total nodes: 89942714
Raw nodes per second: 768741
Total elapsed time: 117
SMP time-to-ply measurement: 5.470085
White(1):

MSVC 6.0 sp5 Non-SMP Build

EPD Kit revision date: 1996.04.21
unable to open book file [./book.bin].
book is disabled
unable to open book file [./books.bin].

Crafty v19.10

White(1): bench
Running benchmark. . .
......
Total nodes: 89942714
Raw nodes per second: 686585
Total elapsed time: 131
SMP time-to-ply measurement: 4.885496
White(1):

MSVC 6.0 sp5 SMP Build

Initializing multiple threads.
System is SMP, not NUMA.
EPD Kit revision date: 1996.04.21
unable to open book file [./book.bin].
book is disabled
unable to open book file [./books.bin].

Crafty v19.10 (1 cpus)

White(1): bench
Running benchmark. . .
......
Total nodes: 89942714
Raw nodes per second: 691867
Total elapsed time: 130
SMP time-to-ply measurement: 4.923077
White(1):


Obviously the Intel 8 compiler won.

The Intel 8 compile was 12% faster than the MSVC 6.0 non-smp build, and 11%
faster than the smp build.

That is quite a speed up.

I have made all 4 builds available for download for people to test, and possiby
post their results. I would like to see a few:

http://members.shaw.ca/craftychess/wcrafty-test.zip

Peter.



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