wehub-resource-sync
37 lines
1.3 KiB
C++
37 lines
1.3 KiB
C++
// Copyright (c) 2026 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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namespace phi {
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namespace funcs {
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// Cast index tensor elements from type T (e.g. int32) to int64_t on GPU.
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// This is needed because the index_fill kernel always works with int64 indices
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// internally, but users may pass int32 index tensors.
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template <typename T>
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__global__ void CastToInt64Kernel(const T* input,
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int64_t* output,
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int64_t numel) {
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int64_t idx =
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static_cast<int64_t>(blockIdx.x) * static_cast<int64_t>(blockDim.x) +
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static_cast<int64_t>(threadIdx.x);
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if (idx < numel) {
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output[idx] = static_cast<int64_t>(input[idx]);
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}
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}
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} // namespace funcs
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} // namespace phi
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