Thank you for these data points. If you can somehow provide inputs for reproducing the problem (a simulation that does not finish) then I can fix this (though maybe not in time for your deadline).
regards, Jakob Am Di., 24. Aug. 2021 um 04:52 Uhr schrieb Haotian Li < haotian...@ucdconnect.ie>: > To whom it may concern: > > The simulation could complete without the SSM device; The simulation could > also finish with edgedumps; The simulation could finish using SSM device in > the scale of 1.8(nearly 2) with 25% memory usage. However, it would shut > down using SSM device in the scale of 3 with only 40% memory usage by that > time. I think the hardware requirement is under mine. As a result, I would > try to change the critiria and methodology with this specfic scenario if > the simulation could finish and the conclusion is obvious, logic and > coherent. Otherwise I may forgive it. Have a nice day! > > Best wishes, > Haotian Li > > > On Mon, 23 Aug 2021 at 17:57, Mirko Barthauer <m.bartha...@t-online.de> > wrote: > >> Hi, >> >> I had similar issues as described by Haotian Li with the SSM device when >> calculating SSM measures for many vehicles. I had the impression the number >> of simultaneous SSM vehicles was more important in this case but did not do >> more formal checks. In my case, I solved it by refining the research >> question to only enable the device for certain vehicles (e.g. by type, by >> route,...) >> >> Best regards >> Mirko >> Am 23.08.2021 um 11:47 schrieb Jakob Erdmann: >> >> Hello, >> the SSM device is not very memory efficient and has only been used on >> medium sized scenarios thus far. >> However, a shutdown of the simulation might also be due to a software bug >> (i.e. due to a combination of untested options or an untested traffic >> situation). >> >> Does the simulation complete successfully without SSM device? >> Does the simulation complete with SSM device and default scale value? How >> much memory does it consume in this case? >> How big is the simulation (total number of vehicles, approximate number >> of simultaneous vehicles)? >> >> regards, >> Jakob >> >> Am Mo., 23. Aug. 2021 um 09:58 Uhr schrieb Haotian Li < >> haotian...@ucdconnect.ie>: >> >>> To whom it may concern: >>> >>> I am Haotian Li, a senior student from UCD and BJUT. I'm here to ask >>> something about the hardware requirement for sumo-gui. I am working on a >>> summer internship using this software as a tool. When I tried to simulate >>> the urban networks using the scale of 3(try to provide traffic jams), I >>> used SSM devices to detect TTC and PET and record conflict loading in >>> conflict.xml and do statistics research after simulation ended. However, I >>> found that 16G RAM can't afford the stress of caching index files and it >>> would break down while simulating. Then, I tried the 32G one and it would >>> also shut down even if the memory usage is not high. Would you please give >>> me some suggestions to fix it? Or I may forgive this scenario because the >>> DDL is approaching. Looking forward to your reply. Have a nice day! >>> >>> Yours sincerely, >>> Haotian Li >>> _______________________________________________ >>> sumo-dev mailing list >>> sumo-dev@eclipse.org >>> To unsubscribe from this list, visit >>> https://www.eclipse.org/mailman/listinfo/sumo-dev >>> >> >> _______________________________________________ >> sumo-dev mailing listsumo-...@eclipse.org >> To unsubscribe from this list, visit >> https://www.eclipse.org/mailman/listinfo/sumo-dev >> >> _______________________________________________ >> sumo-dev mailing list >> sumo-dev@eclipse.org >> To unsubscribe from this list, visit >> https://www.eclipse.org/mailman/listinfo/sumo-dev >> > _______________________________________________ > sumo-dev mailing list > sumo-dev@eclipse.org > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-dev >
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