Hi Alon, I did recompile with the latest emscripten, the one I compiled with was not more than 2 months old. However, now I get nothing. I do see the asm.js warnings, but no reaction to Module.run(), also no error (even within worker triggering manually), the FS works, Module.print() works too. That happens to all versions I compiled with -O2 or -g1. I prepared a site loading the new (-g1) version:
http://gaia.respawned.com/index_alon.html The bitcode is at http://gaia.respawned.com/GaiaE.o You don't need to wait that long, it will run until TS 1000. The performance line appears after TS 0. Thanks, Christian On Mon, Feb 10, 2014 at 10:17 PM, Alon Zakai <[email protected]> wrote: > Thanks. How long should this run? I waited until TS: 100 and it still > keeps going it seems. > > I see an asm.js validation error in the log, this could be related to the > performance problem. Was this compiled using latest emscripten? If so, can > you make a whitespace-friendly build I could take a look at? emcc -g1 will > do that. (Even better is if you can provide the bitcode file, but not > necessary.) > > - Alon > > > > On Mon, Feb 10, 2014 at 11:13 AM, Chris <[email protected]> wrote: > >> Yes - you have to switch to the "Run"tab first. That is where the CFD sim >> task is controlled, the gnuplot tasks may/should suffer from the same >> problem. >> The GFlops output comes after the first time step. >> >> Cheers, >> C >> >> >> On Monday, February 10, 2014 7:21:07 PM UTC+1, Alon Zakai wrote: >> >>> Does it print out the GFlops somewhere? >>> >>> All I see is "Execution took", which went from 1.628 to 2.172 when I >>> reset. >>> >>> - Alon >>> >>> >>> >>> On Mon, Feb 10, 2014 at 3:04 AM, Chris <[email protected]> wrote: >>> >>>> Hi all, >>>> I ported a fluid simulation C++ code (command line program) with >>>> emscripten and it works quite fantastic. I never thought JS could run that >>>> efficiently. >>>> However, to re-run my program I wrapped the compiled version in a >>>> function (with pre/post.js) to reset its state. That usually worked nice, >>>> but recently I get at first an awesome performance from FF (~0.3 native >>>> speed!), but after a reset it suffers a drastic performance breakdown of a >>>> factor of 20. >>>> >>>> The site is http://gaia.respawned.com >>>> >>>> You can observe it just by clicking "Run" in the Run tab, the sparse >>>> matrix mul+add performance is measured thoroughly. At first run: >>>> Performance (mul+add): 0.377445 GFlops >>>> >>>> After "Reset" (calling gaia_create() again in the worker): >>>> Performance (mul+add): 0.0187213 GFlops >>>> >>>> On a recent Chrome I do not get a difference, always around 0.26 GFlops. >>>> >>>> Thanks for your help, >>>> Christian >>>> >>>> PS: Native gcc -O3 : 1.17 GFlops. >>>> >>>> >>>> >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "emscripten-discuss" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> For more options, visit https://groups.google.com/groups/opt_out. >>>> >>> >>> -- >> You received this message because you are subscribed to the Google Groups >> "emscripten-discuss" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- > You received this message because you are subscribed to a topic in the > Google Groups "emscripten-discuss" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/emscripten-discuss/UFL7YRfvJQw/unsubscribe > . > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
