samth changed the topic of #racket to: Racket v7.7 has been released: https://blog.racket-lang.org/2020/05/racket-v7-7.html -- Racket -- https://racket-lang.org -- https://pkgs.racket-lang.org -- Paste at http://pasterack.org
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<dzoe> samth: actually git submodule init and update was required, I am finally bootstraping the whole chain
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<samth> jcowan: yes that would be nice. of course creating it takes work, which is why it doesn't exist ...
<dzoe> Oh my ... cgc -> 3m -> bootstrap CS -> build CS -> make cs :)
<bremner> handy as a check for system cooling?
<dzoe> No, trying to finish my analysis of various flonum+futures related setups and I am finally trying to look into Matthew's work on flonum unboxing.
<dzoe> Funny thing is that I can do 4x4 matrix multiplication much faster in pre-unboxing CS than on any other setup.
<dzoe> And ./configure --enable-scheme=... works funnily with relative paths
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<dzoe> /usr/bin/ld: /home/joe/Projects/Programming/racket-lang/ChezScheme//ta6le/boot/ta6le/libkernel.a(expeditor.o):expeditor.c:(.text+0xe3f): more undefined references to `tputs' follow
<dzoe> aaaaaa
<dzoe> Kind of feels like some weird ncurses assumptions are at play.
<dzoe> Yes, adding -lncurses to racket/racket/src/cs/c/Makefile's LIBS= solves the problem.
<dzoe> user0m28,672s
<dzoe> Fresh racketcs build running (exit 0)
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<dzoe> Ok, I probably understand the build mechanism now. Let's start from scratch and see if it works.
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<notnotdan> are there ncurses bindings for racket?
<samth> notnotdan: I don't know of one; you might be interested in the `charterm` library though
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<notnotdan> thanks samth
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<dzoe> samth: I cannot get my 3D rasterizer to work with unboxed flonums, however, the matrix multiplication tests plummet from 3.1M mul/s in naive 3m to 22M mul/s in CS with flonum unboxing and simple hints for register allocations!
<dzoe> With 4.7M mul/s with the hints and without flonums unboxing.
<samth> wow
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<dzoe> My sentiments exactly. Now I am really curious about how that will perform under futures.
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<dzoe> Ok, got it.
<dzoe> As the pipeline is pretty optimized when it comes to any overhead, I get almost precisely 2x speedup with latest Matthew's patches!
<dzoe> 56->112 fps in my tests
<dzoe> Let's rebuild the latest 3m and see the difference.
<dzoe> I am glad I finally got back to this project.
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