SqrtImpl.hpp

/********************************************************************************
 * Copyright (c) 2023 CEA-List
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 ********************************************************************************/

#ifndef AIDGE_CPU_OPERATOR_SQRTIMPL_H_
#define AIDGE_CPU_OPERATOR_SQRTIMPL_H_

#include "aidge/backend/OperatorImpl.hpp"
#include "aidge/operator/Sqrt.hpp"
#include "aidge/utils/Registrar.hpp"
#include "aidge/utils/Types.h"
#include <memory>
#include <vector>

namespace Aidge {
// class Sqrt_Op;

// compute kernel registry for forward and backward
class SqrtImplForward_cpu
    : public Registrable<SqrtImplForward_cpu, std::tuple<DataType, DataType>, void(const std::size_t, const void*, void*)> {
};
class SqrtImplBackward_cpu
    : public Registrable<SqrtImplBackward_cpu, std::tuple<DataType, DataType>, void(const std::size_t, const void*, void*)> {
};

class SqrtImpl_cpu : public OperatorImpl {
   protected:
    const Sqrt_Op& mOp;
    std::array<NbElts_t, 1> mNbConsumedData;
    std::array<NbElts_t, 1> mNbProducedData;

   public:
    SqrtImpl_cpu(const Sqrt_Op& op) : mOp(op), mNbConsumedData({0}), mNbProducedData({0}) {}

    static std::unique_ptr<SqrtImpl_cpu> create(const Sqrt_Op& op) {
        return std::make_unique<SqrtImpl_cpu>(op);
    }

   public:
    NbElts_t getNbRequiredData(const IOIndex_t inputIdx) const override final;
    NbElts_t getNbRequiredProtected(const IOIndex_t inputIdx) const override final;
    NbElts_t getRequiredMemory(const IOIndex_t /*outputIdx*/, const std::vector<DimSize_t>& /*inputsSize*/) const override final;
    NbElts_t getNbConsumedData(const IOIndex_t inputIdx) const override final;
    NbElts_t getNbProducedData(const IOIndex_t outputIdx) const override final;
    void updateConsummerProducer() override final;
    void forward() override;

    void backward() override;
};

namespace {
static Registrar<Sqrt_Op> registrarSqrtImpl_cpu("cpu", Aidge::SqrtImpl_cpu::create);
}
}  // namespace Aidge

#endif /* AIDGE_CPU_OPERATOR_SQRTIMPL_H_ */