wehub-resource-sync
64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
// Copyright (c) 2024 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <string>
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#include "paddle/phi/core/framework/dense_tensor_serialize.h"
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#include "paddle/phi/core/kernel_registry.h"
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#include "paddle/phi/core/tensor_utils.h"
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#include "paddle/phi/kernels/cast_kernel.h"
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namespace phi {
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template <typename T, typename Context>
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void LoadKernel(const Context& dev_ctx,
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const std::string& file_path,
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int64_t seek,
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const std::vector<int64_t>& shape,
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bool load_as_fp16,
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DenseTensor* out) {
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// FIXME(yuyang18): We save variable to local file now, but we should change
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// it to save an output stream.
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std::ifstream fin(file_path, std::ios::binary);
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PADDLE_ENFORCE_EQ(
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static_cast<bool>(fin),
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true,
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errors::Unavailable("Load operator fail to open file %s, please check "
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"whether the model file is complete or damaged.",
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file_path));
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PADDLE_ENFORCE_NOT_NULL(
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out,
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errors::InvalidArgument("The variable to be loaded cannot be found."));
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if (seek != -1) {
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PADDLE_ENFORCE_GE(seek,
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0,
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errors::InvalidArgument(
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"seek with tensor must great than or equal to 0"));
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DeserializeFromStream(fin, out, dev_ctx, seek, shape);
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} else {
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DeserializeFromStream(fin, out, dev_ctx);
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}
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auto in_dtype = out->dtype();
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auto out_dtype = load_as_fp16 ? DataType::FLOAT16 : in_dtype;
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if (in_dtype != out_dtype) {
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CastKernel<T>(dev_ctx, *out, out_dtype, out);
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}
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}
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} // namespace phi
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