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Unexpected termination when using multiple environments #527

Open WooChengyuuuu opened 9 months ago

WooChengyuuuu commented 9 months ago

Dear professor,

Thanks a lot for developing this simulation tool. Our team is planning to run simulation with 50 environments. We set parameter num_envs to 50 in yaml file. We met problems when running simulation: Only 35 environments worked. We got an unexpected termination with "Segmentation fault (core dumped)". We tried simulation with a smaller number of environments. Surprisingly, the simulation worked well.

Our team is confused now. It seems that we have some memory issue in our build of simulation. We are unsure about if the issue is caused by running too much environments. We are still working hard to try to solve this problem. If you have any idea on this problem, please tell us.

WooChengyuuuu commented 9 months ago

I want to add some additional information. Our team just find that we could run simulation on another computer. We guess that this issue may be caused by the difference of computer. Is there any thing we missed when choosing computer to run simulation?

jhwangbo commented 9 months ago

Its usually the GPU memory limitation. Try to lower the No. of environments and see how much gpu memory it uses