Bill, I had no idea about this - where can I read about blas vs non-blas?
It would seem that my "default" is neither of your suggested cases - but again, no idea what is implied. MBpro-3:~ jkt$ jb JVERSION Engine: j902/j64avx2/darwin Beta-a: commercial/2020-05-09T10:56:17 clang-11-0-0 Library: 9.02.03 Platform: Darwin 64 Installer: J902 install InstallPath: /applications/j902 Contact: www.jsoftware.com 3 timex '%. 1000 1000 ?@$ 0' 0.2393233333 44041920 0 (9!:58)"0 i.3 1 1 1 3 timex '%. 1000 1000 ?@$ 0' 0.3294893333 44041920 _1 (9!:58)"0 i.3 1 1 1 3 timex '%. 1000 1000 ?@$ 0' 0.2068576667 44041920 I do like the increased speed from the default to the _1 (9!:58)"0 i.3 case. I would like to know more about the implications. > On 2020May 14, at 16:23, bill lam <[email protected]> wrote: > > Joey, another possibility is blas vs non-blas code being called. > > foreign 9!:58 can set threshold > _1 (9!:58)"0 i.3 NB. +/ .* never use blas > 0 (9!:58)"0 i.3 NB. +/ .* alwasy use blas > > Can you try execute > _1 (9!:58)"0 i.3 > then run your benchmark, then execute > 0 (9!:58)"0 i.3 > then run benchmark again and verify which mode you are using by default? > > > On Fri, May 15, 2020, 5:32 AM Joey K Tuttle <[email protected]> wrote: > >> Installed under OS X 10.14.6 easily - but I'm puzzled why "my" benchmark >> >> timex '%. 1000 1000 ?@$ 0' >> >> takes more than twice as much cpu compared to j901... (space used is >> identical) >> >>> On 2020May 14, at 14:27, Henry Rich <[email protected]> wrote: >>> >>> This beta has a few language changes: >>> >>> * Fold (u F:. v) has been redefined to execute v first, then, u >>> >>> * u0`u1`...@v now has infinite rank. v is executed first to decide the >> cell-rank, and which verb is to be executed for each cell; then the u verbs >> are executed, either one cell at a time or in one call to each verb, to >> execute on a list of cells at once. Therefore, each u verb needs to be able >> to handle single cell or a list of input cells. >>> >>> * semiduals are supported at last: x u&.:(v`a:) y applies v only to x, >> and x u&.:(a:`v) y applies v only to y. >>> >>> Henry Rich >>> >>> On 5/14/2020 3:49 PM, Eric Iverson wrote: >>>> The first 902 beta release is available for windows/macos/linux. >>>> >>>> https://code.jsoftware.com/wiki/System/Installation/J902 >>>> >>>> Availability of new releases will be announced here. >>>> >>>> Questions, problems, etc should be addressed to the beta forum. >>>> ---------------------------------------------------------------------- >>>> For information about J forums see http://www.jsoftware.com/forums.htm >>> >>> >>> -- >>> This email has been checked for viruses by AVG. >>> https://www.avg.com >>> >>> ---------------------------------------------------------------------- >>> For information about J forums see http://www.jsoftware.com/forums.htm >> >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm >> > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
