On Fri, Sep 25, 2009 at 4:04 PM, Bob Arendt <rda@xxxxxxxxxx> wrote: > On 09/25/09 12:37, Deji Akingunola wrote: >> >> On Fri, Sep 25, 2009 at 1:10 PM, Christoph Frieben >> <christoph.frieben@xxxxxxxxxxxxxx> wrote: >>> >>> 2009/9/25 Chris Adams: >>>> >> >>> >>> (Likewise, the default x86_64 package is currently called >>> >>> atlas [< atlas-sse3< ... ] >>> >>> and is using SSE2 by default as expected for all x86_64 packages. Higher >> >> Actually the atlas x86_64 package is using SSE3 by default. I believe >> SSE3 is the least common denominator for the x86_64 cpus. And yes, >> whatever is determined for the x86_32 situation will also apply for >> SSE4* for x86_64. >> >> Deji >> > My Athlon(tm) 64 X2 Dual Core Processor 3600+ (running x86_64) isn't > showing SSE3; From /proc/cpuinfo > > flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca > cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt > rdtscp lm 3dnowext 3dnow rep_good extd_apicid pni cx16 lahf_lm cmp_legacy > svm extapic cr8_legacy 3dnowprefetch > > Unless the 3dnow extensions are equivalent to SSE3, it looks like SSE2 > is the least common denominator for the x86_64 cpus. > Thanks for the info. Deji -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
