Author: Peter Skinner
Date: 07:30:21 02/16/04
Go up one level in this thread
On February 16, 2004 at 05:11:31, Bryan Hofmann wrote: >On February 16, 2004 at 04:32:25, Peter Skinner wrote: > >>On February 16, 2004 at 04:26:43, Peter Skinner wrote: >> >>CFLAGS = /Ox /G6 /Gr /Ob2 /DFUTILITY /DEPD >>COPTS = /DFAST /DEGTB6 /DVC_INLINE_ASM /DUSE_ASSEMBLY >> >>Those are the target options that I have in my makefile. Other than adding >>/DFUTILITY and /DEPD it is pretty standard. >> >>Under the Intel 8 compiler I use: (Mostly from Mike) >> >>CFLAGS = /O3 /G6 /Gr /Ob2 /Qunroll /Qip /Qipo /QaxiW /W0 /DEPD /DFUTILITY >>COPTS = /DFAST /DEGTB6 /DVC_INLINE_ASM /DUSE_ASSEMBLY >> >>I am wondering if I am using the best options under MSVC. Are there better >>options when compiling for the P4 processor? >> >>Peter. > >For the Intel 8 compiler I would remove the /Qunroll option. Normally AMD >systems run faster when loops are unrolled and Intel system run slower. You >might try removing the /DFAST option for the MSVC compile as Russell found it to >be faster without this option under MSVC 2003 .NET. Intel 8 /wo /Qunroll 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: 782110 Total elapsed time: 115 SMP time-to-ply measurement: 5.565217 White(1): Intel 8 /w /Qunroll 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): MSVC 6.0 /w sp5 /wo /dfast 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: 708210 Total elapsed time: 127 SMP time-to-ply measurement: 5.039370 White(1): MSVC 6.0 /w sp5 /w /dfast 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): Both of your options seem to slighty make a faster exe. Peter.
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