Agner`s CPU blog

Software optimization resources | E-mail subscription to this blog | www.agner.org

Flat ViewSearchListList MessageboardsHelp
Intel compiler question
Author:  Date: 2010-10-11 06:21
Hello Agner and thank you for sharing all of your wisdom with us, it's really appreciated.

At the time of writing there's the following paragraph in your optimizing software in C++ manual:

"Programs compiled with the Intel compiler with the /Qax option will run sub-optimally on non-Intel processors unless the above patch is included. Programs compiled with the /Qx option will not run at all on non-Intel processors unless the above patch is included."

Does that mean that the unfair CPU path dispatcher is only present when either of those switches are used in the compilation? Or is it present too when using /arch:SSE3 only for example?

Thank you very much for your time, kind regards,
J. Russell.

Reply To This MessagePrevious MessageNext Message
 
thread Intel's "cripple AMD" function - Agner Fog - 2009-12-30
reply Intel's - Felid - 2010-01-01
replythread Intel's "cripple AMD" function - inhahe - 2010-01-03
last replythread Intel's - Agner Fog - 2010-01-04
replythread Intel's compiler is the best? - Weber - 2010-01-04
last reply Intel's compiler is the best? - Agner Fog - 2010-01-09
last reply Intel article - Agner Fog - 2010-01-22
replythread Web Parallels - Jeff Craig - 2010-01-04
last replythread More Parallels - Agner Fog - 2010-01-23
reply Early Examples - Yuhong Bao - 2010-02-01
last reply More Parallels - Yuhong Bao - 2010-02-20
replythread New CPUID manipulation program - Agner Fog - 2010-01-22
replythread CPUID manipulation through virtualization - Andrew Lofthouse - 2010-08-16
reply CPUID manipulation through virtualization - Agner Fog - 2010-08-16
replythread CPUID manipulation program for AMD - Agner - 2010-10-01
last replythread CPUID manipulation program for AMD - Ralf - 2012-01-30
last reply CPUID manipulation program for AMD - Agner - 2012-01-31
last reply CPUID manipulation through virtualization - akshay - 2015-07-08
last replythread New CPUID manipulation program - AVK - 2011-02-09
last reply New CPUID manipulation program - Agner - 2011-02-09
reply AMD Blog on compilers/benchmarch - margaret lewis - 2010-02-01
replythread New version is still crippling Intel's competitors - Agner Fog - 2010-06-29
last reply New version is still crippling Intel's competitors - granyte - 2014-09-16
reply Out of court settlement with FTC - Agner Fog - 2010-08-05
reply AMD library contains Intel's cripple-AMD function! - Agner Fog - 2010-08-11
replythread Common math programs are affected - Agner Fog - 2010-08-20
last reply Preliminary test results for Matlab - Agner Fog - 2010-09-16
reply Overview of CPU dispatching in Intel software - Agner Fog - 2010-08-23
replythread New Intel compiler version - still the same! - Agner Fog - 2010-09-22
reply GCC now has support for function dispatch - Jean-Luc - 2010-09-27
replythread Intel compiler question - James Russell - 2010-10-11
last reply Intel compiler question - Agner - 2010-10-12
reply New Intel compiler version - still the same! - Don Kretsch - 2010-11-29
last replythread New Intel compiler version - still the same! - Daniel - 2011-12-23
last replythread New Intel compiler version - still the same! - Agner - 2011-12-25
last replythread New Intel compiler version - still the same! - Stanley Theamer - 2012-02-12
last reply New Intel compiler version - still the same! - Stretcho - 2012-03-14
last replythread Still no library that is optimal on all processors - Agner - 2012-04-18
replythread Still no library that is optimal on all processors - Guest - 2012-05-17
last replythread Still no library that is optimal on all processors - Agner - 2012-05-17
last replythread Still no library that is optimal on all processors - David - 2012-05-19
last replythread Still no library that is optimal on all processors - Agner - 2012-05-20
last reply Still no library that is optimal on all processors - Bubba_Hotepp - 2012-06-16
last replythread Still no library that is optimal on all processors - Marat Dukhan - 2013-05-20
last reply Still no library that is optimal on all processors - Agner - 2013-05-21
 
Flat ViewSearchListList MessageboardsHelp