torch.cuda.get_allocator_backend
torch.cuda.get_allocator_backend()
Returns a string describing the active allocator backend as set by
   "PYTORCH_CUDA_ALLOC_CONF". Currently available backends are
   "native" (PyTorch's native caching allocator) and
   cudaMallocAsync` (CUDA's built-in asynchronous allocator).
Note:
 See Memory management for details on choosing the allocator
 backend.

Return type:
      str