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Raymond Lewis Rebbeck wrote: |
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> On Saturday, 2 December 2006 14:59, Chris Walters wrote: |
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>> James wrote: |
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>>> Hello, |
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>>> |
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>>> Im using the livecd amd64 to install a new AMD ATholon 64 x2 Dual-Core |
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>>> based system. I'm at the processor selection and stumped by the lack of |
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>>> choices. |
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>>> |
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>>> My amd64 turion laptop uses this option: |
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>>> CFLAGS="-march=k8 -O2 -pipe" |
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>>> CHOST="x86_64-pc-linux-gnu" |
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>>> |
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>>> In the current install, I k6, k6-2, k6-3, athlon-xp and athlon-mp |
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>>> as choices. |
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>>> |
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>>> Did I burn the wrong liveCD amd64 cd? |
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>>> |
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>>> James |
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>> Hello James, |
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>> |
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>> I would suggest trying in the CFLAGS, "-athlon64" you might want to set |
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>> some other flags like "-mfpmath=", "-sse", "-sse2", and "-3dnow". |
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> |
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> You should be specifying '-march=athlon64'. |
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|
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Oops. This is what I meant to say - what I get when I divide my |
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attention. Pity, since I just recently installed a Gentoo system for |
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the same processor. |
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|
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> '-athlon64' is not a valid CFLAG, also -sse/2 and -3dnow are all implied |
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> by -march=athlon64 and I'm quite sure that -mfpmath=sse is also the default |
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> on amd64. It may be useful to specify '-msse3' in the CFLAGS though if your |
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> cpu supports SSE3 as no -march setting implies it yet. Although it's unlikely |
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> that gcc utilises sse3 properly. |
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> |
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> I recommend the following CFLAGS: |
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> |
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> CFLAGS="-O2 -march=athlon64 -pipe" |
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That is what I was going to suggest... Oh well, I guess I'd better |
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learn to concentrate. |
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> |
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> Adding -msse3 if appropriate for your cpu. |
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Regards, |
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Chris |
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-- |
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