Plainly, in Bill's message is this: *In order to gauge how much backwards compatibility for*
*older CPUs we will have to implement it would help to know who is usingsuch older processors.* No where does Bill say they are going to leave anyone behind. He was asking for one simple thing, so they could maintain backward compatibility. *If your computer doesn't support the new instructions set, let me know.* At no point did Bill say people with older computers were going to be obsolesced. 73, N0AN Hasan On Wed, Jun 9, 2021 at 7:20 AM Doug Bates <kv4z...@gmail.com> wrote: > One more old retired Amateur with older computing hardware. Not likely to > be upgraded any time soon on a limited retirement budget. Please keep > backward compatibility as long as possible. > 73 de KV4ZY > > On Wed, Jun 9, 2021 at 6:11 AM Bill Somerville <g4...@classdesign.com> > wrote: > >> On 09/06/2021 09:37, Jim Brown wrote: >> >> On 6/8/2021 4:38 PM, Bill Somerville wrote: >> >> we are looking into some performance enhancements that will take >> advantage of some parallel processing features of modern CPU architectures. >> >> >> Bill, >> >> I have a half dozen Thinkpads of various vintages, most running i7 >> processors, two running i5s. At least half were purchased as refurbs for >> less than $500. Machines like this are widely available in the States, so >> that on this side of the pond, hardware should be no limitation for any ham >> willing to spend a modest amount for a computer. In the case of one machine >> (the one in my shack, about 5 years old purchased new), I needed to add >> some RAM. >> >> I bought my current shack computer new 5-7 years ago, an i7 Thinkpad with >> not enough RAM for $760. I've since added 8 GB and an SSD. It has no >> problem with WSJT-X, nor with SO2R RTTY contesting -- two radios, each with >> two RTTY decoders, logging software, and browsers, all running >> simultaneously. A comparable machine could probably be bought used for >> about $500. >> >> I think the real obstacle is ignorance on the part of many hams as to >> what's available at moderate cost. I would encourage your ongoing >> development, along with an education campaign about hardware. >> >> 73, Jim K9YC >> >> Jim, >> >> it would be helpful if you take the time to review the CPU specs of each >> of your machines that run WSJT-X (or MAP65) and determine if they support >> the AVX instruction set. With MS Windows this can be done by looking at the >> System panel (Windows+X then select System), find the CPU model (it is in >> the middle of the page) and look it up on the manufacture's web site. For >> example I might do an internet search for "Intel Core i7-3630QM specs" and >> go to the ark.intel.com link at the top of that search >> https://ark.intel.com/content/www/us/en/ark/products/71459/intel-core-i7-3630qm-processor-6m-cache-up-to-3-40-ghz.html >> . On that page under "Advanced Technologies" I find AVX, you may also see >> AVX2 or even one of the AVX512 versions, all of those include AVX support. >> Let me know if any of your WSJT-X PCs do not support AVX. >> >> 73 >> Bill >> G4WJS. >> _______________________________________________ >> wsjt-devel mailing list >> wsjt-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/wsjt-devel >> > _______________________________________________ > wsjt-devel mailing list > wsjt-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wsjt-devel >
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