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_testing.py
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_testing.py
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# Data Parallel Control (dpctl)
#
# Copyright 2020-2023 Intel Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import numpy as np
import dpctl.tensor as dpt
import dpctl.utils as du
from ._manipulation_functions import _broadcast_shape_impl
from ._type_utils import _to_device_supported_dtype
def _allclose_complex_fp(z1, z2, atol, rtol, equal_nan):
z1r = dpt.real(z1)
z1i = dpt.imag(z1)
z2r = dpt.real(z2)
z2i = dpt.imag(z2)
if equal_nan:
check1 = dpt.all(dpt.isnan(z1r) == dpt.isnan(z2r)) and dpt.all(
dpt.isnan(z1i) == dpt.isnan(z2i)
)
else:
check1 = (
dpt.logical_not(dpt.any(dpt.isnan(z1r)))
and dpt.logical_not(dpt.any(dpt.isnan(z1i)))
) and (
dpt.logical_not(dpt.any(dpt.isnan(z2r)))
and dpt.logical_not(dpt.any(dpt.isnan(z2i)))
)
if not check1:
return check1
mr = dpt.isinf(z1r)
mi = dpt.isinf(z1i)
check2 = dpt.all(mr == dpt.isinf(z2r)) and dpt.all(mi == dpt.isinf(z2i))
if not check2:
return check2
check3 = dpt.all(z1r[mr] == z2r[mr]) and dpt.all(z1i[mi] == z2i[mi])
if not check3:
return check3
mr = dpt.isfinite(z1r)
mi = dpt.isfinite(z1i)
mv1 = z1r[mr]
mv2 = z2r[mr]
check4 = dpt.all(
dpt.abs(mv1 - mv2)
< dpt.maximum(atol, rtol * dpt.maximum(dpt.abs(mv1), dpt.abs(mv2)))
)
if not check4:
return check4
mv1 = z1i[mi]
mv2 = z2i[mi]
check5 = dpt.all(
dpt.abs(mv1 - mv2)
<= dpt.maximum(atol, rtol * dpt.maximum(dpt.abs(mv1), dpt.abs(mv2)))
)
return check5
def _allclose_real_fp(r1, r2, atol, rtol, equal_nan):
if equal_nan:
check1 = dpt.all(dpt.isnan(r1) == dpt.isnan(r2))
else:
check1 = dpt.logical_not(dpt.any(dpt.isnan(r1))) and dpt.logical_not(
dpt.any(dpt.isnan(r2))
)
if not check1:
return check1
mr = dpt.isinf(r1)
check2 = dpt.all(mr == dpt.isinf(r2))
if not check2:
return check2
check3 = dpt.all(r1[mr] == r2[mr])
if not check3:
return check3
m = dpt.isfinite(r1)
mv1 = r1[m]
mv2 = r2[m]
check4 = dpt.all(
dpt.abs(mv1 - mv2)
<= dpt.maximum(atol, rtol * dpt.maximum(dpt.abs(mv1), dpt.abs(mv2)))
)
return check4
def _allclose_others(r1, r2):
return dpt.all(r1 == r2)
def allclose(a1, a2, atol=1e-8, rtol=1e-5, equal_nan=False):
"""allclose(a1, a2, atol=1e-8, rtol=1e-5, equal_nan=False)
Returns True if two arrays are element-wise equal within tolerances.
The testing is based on the following elementwise comparison:
abs(a - b) <= max(atol, rtol * max(abs(a), abs(b)))
"""
if not isinstance(a1, dpt.usm_ndarray):
raise TypeError(
f"Expected dpctl.tensor.usm_ndarray type, got {type(a1)}."
)
if not isinstance(a2, dpt.usm_ndarray):
raise TypeError(
f"Expected dpctl.tensor.usm_ndarray type, got {type(a2)}."
)
atol = float(atol)
rtol = float(rtol)
if atol < 0.0 or rtol < 0.0:
raise ValueError(
"Absolute and relative tolerances must be non-negative"
)
equal_nan = bool(equal_nan)
exec_q = du.get_execution_queue(tuple(a.sycl_queue for a in (a1, a2)))
if exec_q is None:
raise du.ExecutionPlacementError(
"Execution placement can not be unambiguously inferred "
"from input arguments."
)
res_sh = _broadcast_shape_impl([a1.shape, a2.shape])
b1 = a1
b2 = a2
if b1.dtype == b2.dtype:
res_dt = b1.dtype
else:
res_dt = np.promote_types(b1.dtype, b2.dtype)
res_dt = _to_device_supported_dtype(res_dt, exec_q.sycl_device)
b1 = dpt.astype(b1, res_dt)
b2 = dpt.astype(b2, res_dt)
b1 = dpt.broadcast_to(b1, res_sh)
b2 = dpt.broadcast_to(b2, res_sh)
k = b1.dtype.kind
if k == "c":
return _allclose_complex_fp(b1, b2, atol, rtol, equal_nan)
elif k == "f":
return _allclose_real_fp(b1, b2, atol, rtol, equal_nan)
else:
return _allclose_others(b1, b2)