chore: import upstream snapshot with attribution

paddle/phi/kernels/cpu/limit_by_capacity_kernel.cc

@@ -0,0 +1,41 @@
+// Copyright (c) 2023 PaddlePaddle Authors. All Rights Reserved.
+//
+// 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.
+
+#include "paddle/phi/kernels/limit_by_capacity_kernel.h"
+#include "paddle/common/errors.h"
+#include "paddle/phi/core/kernel_registry.h"
+
+#if defined(PADDLE_WITH_GLOO)
+#include "paddle/phi/core/distributed/gloo_comm_context.h"
+#endif
+namespace phi {
+
+template <typename T, typename Context>
+void LimitByCapacityKernel(const Context& dev_ctx,
+                           const DenseTensor& expert_count,
+                           const DenseTensor& capacity,
+                           int n_worker,
+                           DenseTensor* Out) {
+  PADDLE_THROW(common::errors::Unimplemented(
+      "limit_by_capacity is not supported on CPU."));
+}
+
+}  // namespace phi
+
+PD_REGISTER_KERNEL(limit_by_capacity,
+                   CPU,
+                   ALL_LAYOUT,
+                   phi::LimitByCapacityKernel,
+                   int,
+                   int64_t) {}