Hi all, aarch64 or the ARMv8 architecture
Not so easy. Every SoC manufacturer can choose to have SVE or not, and how big !!!! See Fujitsu here, page 15: http://users.ece.utexas.edu/~gerstl/ee382m_f18/lectures/SVE_Seminar_UT_Rico.pdf And this is for a SuperComputer!! So, it looks, the Odroid N2 with an AMLOGIC SoC has only "neon" ie. 128bit vectors. And, running FreeDV GUI and decoding a mode 2020 WAV file, CPU load goes above 100%. Running without the waterfall, spectrum view, better, still above 100%. Question now: What small boards, Pi, PINE64 or Odroid etc.. have SVE of 512bits or better? Alan VK2ZIW On Fri, 1 May 2020 17:52:11 +1000, Al Beard wrote > Hi all, > > > FreeDV on the Odroid N2 > > > I loaded Armbian from: > https://forum.armbian.com/topic/12162-single-armbian-image-for-rk-aml-aw/ > and one extra step: cp <sd card>/BOOT/boot-emmc.src <sd card>/BOOT/boot.scr > Kernel 5.7.0-rc2-next-20200424-arm-64 > > then, just compiling FreeDV 2020 GUI with GCC Ver 8.3 runs at 35% CPU usage > with the waterfall. > (I hacked the FreeDV GUI source to enable mode 2020) > GIT revision > > b097ce7 > 2053 > > Looking good. > > Alan VK2ZIW > > > On Wed, 29 Apr 2020 16:30:06 +1000, Al Beard wrote > > Hi, > > On my Odroid N2 running Fedora 32 via "chroot" on Armbian, > > > > > > gcc -march=armv8-a+sve hello.c > > > > > > works without error. > > > > > > So, can the build script test for ARMv8 running 64bit > > Armbian, kernel 5.4.35-meson64 > > cat /proc/cpuinfo > > > > processor : 5 > > BogoMIPS : 48.00 > > Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid > > CPU implementer : 0x41 > > CPU architecture: 8 > > CPU variant : 0x0 > > CPU part : 0xd09 > > CPU revision : 2 > > > > and just apply the gcc option -march=armv8-a+sve > > > > Keep smiling > > > > Alan
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