58 lines
1.7 KiB
Plaintext
58 lines
1.7 KiB
Plaintext
/*
|
|
* ******************************************************************************
|
|
* *
|
|
* *
|
|
* * This program and the accompanying materials are made available under the
|
|
* * terms of the Apache License, Version 2.0 which is available at
|
|
* * https://www.apache.org/licenses/LICENSE-2.0.
|
|
* *
|
|
* * See the NOTICE file distributed with this work for additional
|
|
* * information regarding copyright ownership.
|
|
* * 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.
|
|
* *
|
|
* * SPDX-License-Identifier: Apache-2.0
|
|
* *****************************************************************************
|
|
*/
|
|
|
|
//
|
|
// @author George A. Shulinok <sgazeos@gmail.com>
|
|
//
|
|
|
|
#include<ops/declarable/helpers/lgamma.h>
|
|
//#include <execution/Threads.h>
|
|
//#include <helper_math.h>
|
|
|
|
namespace sd {
|
|
namespace ops {
|
|
namespace helpers {
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
// calculate digamma function for array elements
|
|
template <typename T>
|
|
void lgamma_(NDArray& x, NDArray& z) {
|
|
//auto dtype = x.dataType();
|
|
auto lgammaProc = LAMBDA_T(x_, dtype) {
|
|
return T(DataTypeUtils::fromT<T>() == DataType::DOUBLE?::lgamma(x_): ::lgammaf(x_)); //math::nd4j_log<T,T>(math::nd4j_gamma<T,T>(x));
|
|
};
|
|
|
|
x.applyLambda(lgammaProc, z);
|
|
}
|
|
|
|
void lgamma(sd::LaunchContext* context, NDArray& x, NDArray& z) {
|
|
|
|
BUILD_SINGLE_SELECTOR(x.dataType(), lgamma_, (x, z), FLOAT_TYPES);
|
|
}
|
|
|
|
BUILD_SINGLE_TEMPLATE(template void lgamma_, (NDArray& x, NDArray& z), FLOAT_TYPES);
|
|
|
|
|
|
|
|
}
|
|
}
|
|
}
|
|
|