I see "Nocona" in the latest reply thread, I think it should be "-march=nocona" (I'll bet it was just Outlook trying to capitalize things again ;-) ).
Brian Wood Intel Corporation UMG Platform Software Group (UPSG) [EMAIL PROTECTED] >-----Original Message----- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rose, James >Sent: Friday, October 17, 2008 8:57 AM >To: [EMAIL PROTECTED] >Subject: RE: [Moblin Dev] Recommended gcc flags for Intel Atom processors > >Just a followup on a couple of items that were brought to my attention: > >Depending on the instruction set support in the version of gcc that you are using, you can select > -mssse3 instead of -msse3 > >Also, please disregard the -static setting. That was an inadvertent copy. > > Recommended settings are: > > -O3 -m[sse3 or ssse3] -march=Nocona -mfpmath=sse > >James > >-----Original Message----- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rose, James >Sent: Thursday, October 16, 2008 2:26 PM >To: [EMAIL PROTECTED]; Speed, Derek >Cc: [EMAIL PROTECTED] >Subject: RE: [Moblin Dev] Recommended gcc flags for Intel Atom processors > >There currently aren't any specific Atom optimizations in gcc, but the following settings have been >recommended for use on Atom by the UMG Performance Team (and verified in some of our performance >work): > > -O3 -msse3 -march=nocona -mfpmath=sse -static > >As a reminder to the list, the Intel compiler for Atom has several optimizations specifically for >this new microarchitecture and is free to use for code that will be targeted on Atom platforms. >The Intel compiler on Linux has consistently shown significant performance increases on Atom vs. >GCC. > >Please see: > >Intel(r) C++ Software Development Tool Suite 1.0 for Linux* OS Supporting Mobile Internet Devices >http://www3.intel.com/cd/software/products/asmo-na/eng/386925.htm > >James > >-----Original Message----- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of >[EMAIL PROTECTED] >Sent: Thursday, October 16, 2008 12:33 PM >To: Speed, Derek >Cc: [EMAIL PROTECTED] >Subject: Re: [Moblin Dev] Recommended gcc flags for Intel Atom processors > >This would probably be a good thing to stick on a website somewhere too >(if it's not already there). > > >> I apologize if this has been answered previously on the list, but what >> is the recommended set of flags to use when compiling code using gcc for >> optimal performance on Intel Atom processors? >> >> Thanks, >> Derek, Intel Open Source Technology Center (OTC) >> >> _______________________________________________ >> Moblin dev Mailing List >> [email protected] >> >> To manage or unsubscribe from this mailing list visit: >> https://lists.moblin.org/mailman/listinfo/dev or your user account on >> http://moblin.org once logged in. >> >> For more information on the Moblin Developer Mailing lists visit: >> http://moblin.org/community/mailing-lists >> > >_______________________________________________ >Moblin dev Mailing List >[email protected] > >To manage or unsubscribe from this mailing list visit: >https://lists.moblin.org/mailman/listinfo/dev or your user account on http://moblin.org once logged >in. > >For more information on the Moblin Developer Mailing lists visit: >http://moblin.org/community/mailing-lists > >_______________________________________________ >Moblin dev Mailing List >[email protected] > >To manage or unsubscribe from this mailing list visit: >https://lists.moblin.org/mailman/listinfo/dev or your user account on http://moblin.org once logged >in. > >For more information on the Moblin Developer Mailing lists visit: >http://moblin.org/community/mailing-lists > >_______________________________________________ >Moblin dev Mailing List >[email protected] > >To manage or unsubscribe from this mailing list visit: >https://lists.moblin.org/mailman/listinfo/dev or your user account on http://moblin.org once logged >in. > >For more information on the Moblin Developer Mailing lists visit: >http://moblin.org/community/mailing-lists _______________________________________________ Moblin dev Mailing List [email protected] To manage or unsubscribe from this mailing list visit: https://lists.moblin.org/mailman/listinfo/dev or your user account on http://moblin.org once logged in. For more information on the Moblin Developer Mailing lists visit: http://moblin.org/community/mailing-lists
