HI Bill, In terms of basic strategy, I've moved away from the "One big complex computer does everything" model towards a bunch of standalone Linux "appliances" that do a small number of tasks.
My JT machines are up 24x7. I'm also partially off grid (Via a homebrew solar setup), so night-time power consumption is a factor, although not a deal breaker.) For the JT modes, I run: Primary Station: Atomic Pi (Atom Quad Core processor with 2gb running Ubuntu (*) https://www.amazon.com/Atomic-Pi-High-Speed-Peripheral/dp/B07N298F2B/ref=sr_1_4?dchild=1&keywords=atomic+pi&qid=1623237717&sr=8-4 I prefer this over raspberry pi due to the huge heatsink which allows passive cooling. For 85% of my operations, this is fine, but on busy bands, it sometimes takes more than 15 seconds to decode a 15 second interval, which is a path to ruin... 🙂 I've been chased off 20 meters a few times due to being unable to decode fast enough. (I stubbornly run deep decoding though so I don't miss stuff.) *I know you didn't ask about OS, but this flavor of ubuntu may not upgrade well. (I already hit a snag building the new version due to libboost etc. and may need to either rebuild on a new distro, or abandon this configuration at some point. Secondary: I also have 2 4gb Raspberry PI 4's running SDR ->GQRX/wsjtx that continuously listen on wspr. --al WB1BQE ________________________________ From: Bill Somerville <g4...@classdesign.com> Sent: Tuesday, June 8, 2021 11:38 PM To: WSJT software development <wsjt-devel@lists.sourceforge.net> Subject: [wsjt-devel] Call for information about PC systems being used for WSJT-X 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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