It looks like my usual "jconsole under emacs" problem - no prompt - is back. This time, running with an older version of the console does not appear to fix it. I notice that the new jconsole.exe is substantially larger than the older version. Do other emacs users get this problem or is it a Windows 7 issue?
I went to my Windows 10 machine to try it there but 1) computer will not come out of sleep mode, so I hold down the power button whereupon 2) I get the message "Applying updates/Do not turn off your computer" 3) I go get a beer. When I come back, I see the message "We couldn't complete the update/Undoing changes/Do not turn off your computer" 4) I wait for a while until I see the windows logo, then 5) go to 2. On Thu, May 14, 2020 at 8:53 PM bill lam <bbill....@gmail.com> wrote: > the non blas implementation is also good and keeps improving, the relative > performance varies between different platforms, cpu, compilers, so there is > no definite answer to the best threshold values. If you found non blas is > always better in your computer, then you can disable blas in your > startup.ijs . > > On Fri, May 15, 2020, 8:45 AM Joey K Tuttle <j...@qued.com> wrote: > > > OK, that makes sense (I love it when a 1000 1000 matrix product is > "small" > > - thinking back to when I first did that benchmark in a 32 KILObyte APL > > workspace - Moore's law has been quite a ride!) > > > > But I'm still a little puzzled why my "default" appears to perform in > > between always and never. > > > > > On 2020May 14, at 17:36, bill lam <bbill....@gmail.com> wrote: > > > > > > +/ . * has 2 implementions blas and non blas, generally blas is faster > on > > > large matrix. there are default thresholds m*n*p to choose blas, the > > monad > > > (9!:58)"0 i.3 > > > reports the threshold for integer, double and complex. > > > the dyad set the threshold with 2 special values that I had mentioned. > > > > > > % . calls +/ . * internally in its implemention. > > > > > > I suspect the size of matrix you tested is "small" by today's standard > so > > > non blas is faster. > > > > > > This needs tuning, you may experiment with different thresholds and > > > different matrixes to get the best results. > > > > > > On Fri, May 15, 2020, 8:17 AM Joey K Tuttle <j...@qued.com> wrote: > > > > > >> 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 <bbill....@gmail.com> 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 <j...@qued.com> 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 <henryhr...@gmail.com> 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 > > >> > > > ---------------------------------------------------------------------- > > > 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 > -- Devon McCormick, CFA Quantitative Consultant ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
