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from caffe2.python import core
import caffe2.python.hypothesis_test_util as hu
import caffe2.python.serialized_test.serialized_test_util as serial
from hypothesis import given, settings
import hypothesis.strategies as st
import numpy as np
import unittest
class TestChannelStatsOp(serial.SerializedTestCase):
def channel_stats_nchw_ref(self, X):
dims = X.shape
N = dims[0]
C = dims[1]
X = X.reshape(N, C, -1)
sum1 = np.sum(X, axis=(0, 2), keepdims=False)
sum2 = np.sum(X**2, axis=(0, 2), keepdims=False)
return (sum1, sum2)
def channel_stats_nhwc_ref(self, X):
dims = X.shape
N = dims[0]
C = dims[-1]
X = X.reshape(N, -1, C)
sum1 = np.sum(X, axis=(0, 1), keepdims=False)
sum2 = np.sum(X**2, axis=(0, 1), keepdims=False)
return (sum1, sum2)
@given(
N=st.integers(1, 5), C=st.integers(1, 10), H=st.integers(1, 12),
W=st.integers(1, 12), order=st.sampled_from(["NCHW", "NHWC"]), **hu.gcs)
@settings(deadline=10000)
def test_channel_stats_2d(self, N, C, H, W, order, gc, dc):
op = core.CreateOperator(
"ChannelStats",
["X"],
["sum", "sumsq"],
order=order,
)
def ref_op(X):
if order == "NCHW":
return self.channel_stats_nchw_ref(X)
else:
return self.channel_stats_nhwc_ref(X)
X = np.random.randn(N, C, H, W).astype(np.float32)
if order == "NHWC":
X = np.transpose(X, [0, 2, 3, 1])
self.assertReferenceChecks(gc, op, [X], reference=ref_op)
self.assertDeviceChecks(dc, op, [X], [0, 1])
@given(
N=st.integers(1, 5), C=st.integers(1, 10), D=st.integers(1, 6),
H=st.integers(1, 6), W=st.integers(1, 6),
order=st.sampled_from(["NCHW", "NHWC"]), **hu.gcs)
@settings(deadline=10000)
def test_channel_stats_3d(self, N, C, D, H, W, order, gc, dc):
op = core.CreateOperator(
"ChannelStats",
["X"],
["sum", "sumsq"],
order=order,
)
def ref_op(X):
if order == "NCHW":
return self.channel_stats_nchw_ref(X)
else:
return self.channel_stats_nhwc_ref(X)
X = np.random.randn(N, C, D, H, W).astype(np.float32)
if order == "NHWC":
X = np.transpose(X, [0, 2, 3, 4, 1])
self.assertReferenceChecks(gc, op, [X], reference=ref_op)
self.assertDeviceChecks(dc, op, [X], [0, 1])
if __name__ == "__main__":
unittest.main()
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