Rmm

https://github.com/rapidsai/rmm  

from rmm.allocators.torch import rmm_torch_allocator

from rmm.allocators.cupy import rmm_cupy_allocator

import torch

import cupy

torch.cuda.memory.change_current_allocator(rmm_torch_allocator)

cupy.cuda.set_allocator(rmm_cupy_allocator)