Fan Shi

You could reduce `num_envs` in `legged_gym/envs/anymal_c/flat/anymal_c_flat_config.py`. The default number is `num_envs = 4096`, but you could try `2048` or `1024` to save memory. Just add `num_envs = 1024` [here](https://github.com/leggedrobotics/legged_gym/blob/master/legged_gym/envs/anymal_c/flat/anymal_c_flat_config.py#L35).

I see, I think that problem is caused by isaac gym. If you try the default ANYmal example in isaac gym, it will take more than 4.5 GB GPU memory....

Thx for your reply @lanyusea XU3 could work for TX1 with JetPack L4T 2.2.1, which install Ubuntu 14.04 with 32 bits. But for latest JetPack L4T 2.3 with 64bits version,...

I see, and poke this guy @tongtybj again for adding this function. :)