I noticed that the simulation runs at different speeds on different machines. This is normal because it depends on the CPU frequency and on the operating system scheduling. For example if I run the simulation on my workstation it will will look slower than if I run it on my laptop where it looks significantly faster. I need a way of making sure that my simulation will run at the same speed no matter the machine.
Le lundi 13 mars 2023 à 13:57:50 UTC+1, [email protected] a écrit : > I think you need to explain more context about what you are trying to do. > From your original question it was not clear to me at all that: > > - You are running a simulation on multiple machines. > - You are running that simulation in real-time (as far as I can > interpret from your mails). > - You want to synchronize time on multiple machines? > > Greetings, Marcel > > > On 13-Mar-23 13:40, Alexandre Vinovrski wrote: > > > To me it seems that the time is managed in a very poor and in an > inadequate way in chrono. I basically need to change it at its source in > order to achieve what I want. I would need a way to make the simulation run > at the same frequency on all machines. This is normally achieved with > deltaTime 'normalization'. I tried to do that but it doesn't work. I'm > using ChFunction which, from looking at the source code, appears to use a > hardcoded step. This might be the issue why my delta time calculations do > not work. At the moment my simulation runs at different speeds on different > machines. > Le dimanche 12 mars 2023 à 16:03:08 UTC+1, [email protected] a écrit : > >> Hi Alexandre, >> >> There are a couple of ways you can get the time: >> >> - system->GetChTime(); >> - if your simulation runs with a fixed timestep, you can easily count >> steps in your physics loop; >> >> I hope that answers your question. >> >> Greetings, Marcel >> >> >> On 12-Mar-23 15:42, Alexandre Vinovrski wrote: >> >> Hello to all, >> We are a team of students working on a project for our university. We >> have to implement a genetic algorithm that allows an individual to walk in >> a physical engine. >> One of the conditions necessary for our algorithm to stop is the >> evaluation of the distance travelled based on the delta time. We have the >> impression that this essential functionality for our project is missing in >> Chrono. >> Do you know if this is available, or if there is a replacement for this >> method? >> >> -- >> You received this message because you are subscribed to the Google Groups >> "ProjectChrono" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/projectchrono/09555871-ff73-4848-b37a-2072500e85aan%40googlegroups.com >> >> <https://groups.google.com/d/msgid/projectchrono/09555871-ff73-4848-b37a-2072500e85aan%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> >> -- > You received this message because you are subscribed to the Google Groups > "ProjectChrono" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/projectchrono/803bad59-c8a4-44c5-9e48-ff70feaa878cn%40googlegroups.com > > <https://groups.google.com/d/msgid/projectchrono/803bad59-c8a4-44c5-9e48-ff70feaa878cn%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > -- You received this message because you are subscribed to the Google Groups "ProjectChrono" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/projectchrono/4a574511-734b-43b6-acd4-f96103885806n%40googlegroups.com.
