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pytorch-image-models/tests/test_layers.py

72 lines
1.5 KiB

import pytest
import torch
import torch.nn as nn
import platform
import os
from timm.models.layers import create_act_layer, get_act_layer, set_layer_config
class MLP(nn.Module):
def __init__(self, act_layer="relu"):
super(MLP, self).__init__()
self.fc1 = nn.Linear(1000, 100)
self.act = create_act_layer(act_layer, inplace=True)
self.fc2 = nn.Linear(100, 10)
def forward(self, x):
x = self.fc1(x)
x = self.act(x)
x = self.fc2(x)
return x
def _run_act_layer_grad(act_type):
x = torch.rand(10, 1000) * 10
m = MLP(act_layer=act_type)
def _run(x, act_layer=''):
if act_layer:
# replace act layer if set
m.act = create_act_layer(act_layer, inplace=True)
out = m(x)
l = (out - 0).pow(2).sum()
return l
out_me = _run(x)
with set_layer_config(scriptable=True):
out_jit = _run(x, act_type)
assert torch.isclose(out_jit, out_me)
with set_layer_config(no_jit=True):
out_basic = _run(x, act_type)
assert torch.isclose(out_basic, out_jit)
def test_swish_grad():
for _ in range(100):
_run_act_layer_grad('swish')
def test_mish_grad():
for _ in range(100):
_run_act_layer_grad('mish')
def test_hard_sigmoid_grad():
for _ in range(100):
_run_act_layer_grad('hard_sigmoid')
def test_hard_swish_grad():
for _ in range(100):
_run_act_layer_grad('hard_swish')
def test_hard_mish_grad():
for _ in range(100):
_run_act_layer_grad('hard_mish')