code: def num_warps(N):
      if N < 2048:
          return 4
      elif N < 8192:
          return 8
      return 16
  
file_path: triton/python/triton/ops/cross_entropy.py
imports: import torch
  from ..None import heuristics, jit
  from ..None import language
  from ..None import next_power_of_2
label_desc: Use image node_id 1 for calling a global function with example usage: num_warps(N) and returns: int, int, int