I use a processor from before Noah, an AMD Athlon II X4 630 2.8 GHz, I believe its pre- 2011 and useS the K10 microarchitecture , which doesn't support AVX calls.
73 LES W2LPL On Tue, Jun 8, 2021 at 8:15 PM Bill Somerville <g4...@classdesign.com> wrote: > Warren, > > I did say "In order to gauge how much backwards compatibility for older > CPUs we will have to implement it would help to know who is using such > older processors." Of course we would build in support for older > technologies. > > 73 > Bill > G4WJS. > > On 09/06/2021 01:02, halst...@gmail.com wrote: > > Many people snag old tablet computers for portable use, so I am going to > conjecture that there are a good number that do not support AVX out there. > > Even the new(-ish) Surface Go 2 has a Pentium Gold processor without AVX. > > (Note: Pentium and Celeron processors based off the Tiger Lake have AVX2 > and AVX-512 support). > > Is there a way to build the support in and only make the AVX calls if the > software detects CPU compatibility? > > Warren > KN6HXP > > On Tue, Jun 8, 2021, 4:38 PM Bill Somerville <g4...@classdesign.com> > wrote: > >> Hi all WSJT-X users, >> >> we are looking into some performance enhancements that will take >> advantage of some parallel processing features of modern CPU >> architectures. In order to gauge how much backwards compatibility for >> older CPUs we will have to implement it would help to know who is using >> such older processors. Please don't turn this thread in to a mine is >> better than yours conversation, all I need to know is who or how many of >> you are using the older CPU architectures. Note that this applies to MS >> Windows, Intel Linux, and Intel macOS users, it is about CPUs not >> operating systems. >> >> The technology we will use is called AVX and that is present on all >> Intel CPUs branded Core i3/i5/i7/i9 (circa 2010 to present), it is also >> present on AMD CPUs since the Jaguar or Puma based CPU models (some late >> Athlon-II CPUs, all Zen based CPUs, including Ryzen) circa 2013 to >> present. >> >> Notably Intel CPUs branded Celeron, Pentium, or Atom do not support the >> AVX technology. >> >> So in summary, look up your CPU and if it **does not support AVX** >> (https://en.wikipedia.org/wiki/Advanced_Vector_Extensions) then let me >> know. >> >> 73 >> Bill >> G4WJS. >> > > _______________________________________________ > wsjt-devel mailing list > wsjt-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wsjt-devel >
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