Multiprocessing doesn't work right now

[Nikhilesh-B]

if you want to harness the power of multiprocessing we have to debug what happens if self.multiprocess is set to true.

Some potential fixes include:

1. could this have anything to do with the device at all????
2. few things to try: 1. us the sub proc vec env with one if self.num_parralel_envs = 1,
3. simple script to test out a simple env, and test out subprocvecenv class
4. simple script to test out a simple env, and test out subprocvecenv class
5. go to github to stable baselines => got to stable baselines and search in their issues you might.
6. write a script to reproduce the error create a simple script that recreates the error.

def create_new_image_envs(self): if self.multiprocess: self.envs = VecPyTorch( SubprocVecEnv([self.make_env(self.seed + i) for i in range(self.num_parallel_envs)], 'fork'), self.device) else: self.envs = VecPyTorch(DummyVecEnv([self.make_env(self.seed + i) for i in range(self.num_parallel_envs)]), self.device)