ColossalAI/colossalai/nn/layer/parallel_3d/_utils.py

60 lines
1.6 KiB
Python

#!/usr/bin/env python
# -*- encoding: utf-8 -*-
import os
from colossalai.constants import (DEPTH_3D, INPUT_GROUP_3D, OUTPUT_GROUP_3D,
WEIGHT_GROUP_3D)
from colossalai.context.parallel_mode import ParallelMode
from colossalai.core import global_context as gpc
from torch import Tensor
def get_depth_from_env() -> int:
try:
depth = os.environ[DEPTH_3D]
depth = int(depth)
assert depth > 0, 'DEPTH must be greater than zero'
return depth
except KeyError as e:
raise EnvironmentError(
'DEPTH is not found in the current environment, '
'please make sure that you have used the correct process group initializer'
)
def get_parallel_mode_from_env(group):
return getattr(ParallelMode, os.environ[group])
def get_last_group(a, b):
mapping = {
ParallelMode.PARALLEL_3D_INPUT: 'A',
ParallelMode.PARALLEL_3D_WEIGHT: 'B',
ParallelMode.PARALLEL_3D_OUTPUT: 'C',
}
res = chr(
ord('A') + ord('B') + ord('C') - ord(mapping[a]) - ord(mapping[b]))
if res == 'A':
return ParallelMode.PARALLEL_3D_INPUT
elif res == 'B':
return ParallelMode.PARALLEL_3D_WEIGHT
elif res == 'C':
return ParallelMode.PARALLEL_3D_OUTPUT
def swap_in_out_group():
os.environ[INPUT_GROUP_3D], os.environ[OUTPUT_GROUP_3D] = \
os.environ[OUTPUT_GROUP_3D], os.environ[INPUT_GROUP_3D]
def dbg_check_shape(tensor: Tensor, shape: tuple):
rank = gpc.get_global_rank()
if rank == 0:
print(tensor.shape)
assert tensor.shape == shape, \
'{} does not match {}'.format(tensor.shape, shape)