ChParallelSystem does not update sleeping bodies status

[dancol90]

Hi!

In version 5.0.0, when using ChParallelSystem, even if enabled with SetUseSleeping(), the bodies never get marked as sleeping.

Looking at the code, I've noticed that ChParallelSystem::Integrate_Y() does nothing equivalent like the call to ChSystem::ManageSleepingBodies() that its non-parallel couterpart does.

Is this feature supported? How else can I check if a subset of bodies has come to rest?

Thanks in advance

[tasora]

Dear Daniele, I am the one who implemented the "sleeping body" feature, for the non-parallel code. I haven't touched the parallel code a lot, because other guys are in charge of developing it nowadays, so I cannot tell you how easy it would be to implement the sleeping feature also for the parallel code. Can you tell me for which reason you need this feature? I ask you this because since  I added it to Chrono, I haven't found anyone using it  -not even me, by the way- so I haven't touched that part of the code for a while, and probably it is also suboptimal in terms of performance. Alessandro Tasora

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On 11/03/2020 19:40, Daniele Colanardi wrote: Hi! In version 5.0.0, when using |ChParallelSystem|, even if enabled with |SetUseSleeping()|, the bodies never get marked as sleeping. Looking at the code, I've noticed that |ChParallelSystem::Integrate_Y()| does nothing equivalent like the call to |ChSystem::ManageSleepingBodies()| that its non-parallel couterpart does. Is this feature supported? How else can I check if a subset of bodies has come to rest? Thanks in advance — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fprojectchrono%2Fchrono%2Fissues%2F225&data=02%7C01%7Calessandro.tasora%40unipr.it%7C56eb1f3206b84002566f08d7c5ebaa14%7Cbb064bc5b7a841ecbabed7beb3faeb1c%7C0%7C0%7C637195488267538880&sdata=hzkMW5vqr6blaQFkyfbZXbjRgJ9jzIBVFsfZTELHWls%3D&reserved=0>, or unsubscribe <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FABHTOBFOHIXRYY2Y3TAEYELRG7LJRANCNFSM4LF4H3OA&data=02%7C01%7Calessandro.tasora%40unipr.it%7C56eb1f3206b84002566f08d7c5ebaa14%7Cbb064bc5b7a841ecbabed7beb3faeb1c%7C0%7C0%7C637195488267548874&sdata=RU8aheAqS4NxtwJt6kFXci5hfXVLRIj%2FE1xvdEIi3RI%3D&reserved=0>.