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/*******************************************************************************
* Copyright 2016-2018 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.
*******************************************************************************/
#ifndef CPU_REF_ELTWISE_HPP
#define CPU_REF_ELTWISE_HPP
#include <assert.h>
#include "c_types_map.hpp"
#include "type_helpers.hpp"
#include "utils.hpp"
#include "cpu_eltwise_pd.hpp"
#include "cpu_primitive.hpp"
namespace mkldnn {
namespace impl {
namespace cpu {
struct ref_eltwise_scalar_fwd_t {
public:
ref_eltwise_scalar_fwd_t(alg_kind_t alg, float alpha, float beta);
// note that eltwise.scale is ignored
ref_eltwise_scalar_fwd_t(const post_ops_t::entry_t::eltwise_t &eltwise);
float compute_scalar(float s);
const alg_kind_t alg_;
const float alpha_;
const float beta_;
};
template <impl::data_type_t data_type>
struct ref_eltwise_fwd_t: public cpu_primitive_t {
struct pd_t: public cpu_eltwise_fwd_pd_t {
using cpu_eltwise_fwd_pd_t::cpu_eltwise_fwd_pd_t;
DECLARE_COMMON_PD_T("ref:any", ref_eltwise_fwd_t);
status_t init() {
using namespace utils;
auto src_d = memory_desc_wrapper(src_md());
use_dense_ = false
|| src_d.is_dense()
|| (src_d.is_dense(true) && is_zero_preserved());
use_nCspBc_padded_ = !use_dense_
&& src_d.blocking_desc().inner_nblks == 1
&& one_of(src_d.blocking_desc().inner_blks[0], 8, 16)
&& src_d.blocking_desc().inner_idxs[0] == 1
&& src_d.only_padded_dim(1)
&& src_d.is_dense(true);
if (has_zero_dim_memory())
use_dense_ = use_nCspBc_padded_ = false;
const bool use_generic = !use_dense_ && !use_nCspBc_padded_;
bool ok = true
&& is_fwd()
&& everyone_is(data_type, desc()->data_desc.data_type)
&& IMPLICATION(use_generic, one_of(src_d.ndims(), 4, 5))
&& attr()->has_default_values();
if (!ok) return status::unimplemented;
return status::success;
}
bool use_dense_, use_nCspBc_padded_;
};
ref_eltwise_fwd_t(const pd_t *apd): cpu_primitive_t(apd) {}
typedef typename prec_traits<data_type>::type data_t;
virtual status_t execute(const exec_ctx_t &ctx) const override {
if (pd()->use_dense_)
execute_forward_dense(ctx);
else if (pd()->use_nCspBc_padded_)
execute_forward_nCspBc_padded(ctx);
else
execute_forward_generic(ctx);
return status::success;
}
private:
void execute_forward_nCspBc_padded(const exec_ctx_t &ctx) const;
void execute_forward_dense(const exec_ctx_t &ctx) const;
void execute_forward_generic(const exec_ctx_t &ctx) const;
const pd_t *pd() const { return (const pd_t *)primitive_t::pd(); }
};
template <impl::data_type_t data_type>
struct ref_eltwise_bwd_t: public cpu_primitive_t {
struct pd_t: public cpu_eltwise_bwd_pd_t {
using cpu_eltwise_bwd_pd_t::cpu_eltwise_bwd_pd_t;
DECLARE_COMMON_PD_T("ref:any", ref_eltwise_bwd_t);
status_t init() {
using namespace utils;
bool ok = true
&& !is_fwd()
&& everyone_is(data_type,
desc()->data_desc.data_type,
desc()->diff_data_desc.data_type)
&& attr()->has_default_values();
if (!ok) return status::unimplemented;
auto diff_dst_d = memory_desc_wrapper(diff_dst_md());
const bool same_fmt_ = diff_dst_d == memory_desc_wrapper(src_md());
use_dense_ = true
&& same_fmt_
&& diff_dst_d.is_dense(true)
&& is_zero_preserved()
&& !has_zero_dim_memory();
const bool use_generic = !use_dense_;
if (use_generic && !one_of(diff_dst_d.ndims(), 4, 5))
return status::unimplemented;
return status::success;
}
bool use_dense_;
};
ref_eltwise_bwd_t(const pd_t *apd): cpu_primitive_t(apd) {}
typedef typename prec_traits<data_type>::type data_t;
virtual status_t execute(const exec_ctx_t &ctx) const override {
if (pd()->use_dense_)
execute_backward_dense(ctx);
else
execute_backward_generic(ctx);
return status::success;
}
private:
void execute_backward_dense(const exec_ctx_t &ctx) const;
void execute_backward_generic(const exec_ctx_t &ctx) const;
const pd_t *pd() const { return (const pd_t *)primitive_t::pd(); }
};
}
}
}
#endif
// vim: et ts=4 sw=4 cindent cino^=l0,\:0,N-s
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