chore: import upstream snapshot with attribution

2026-07-13 12:40:42 +08:00
commit e25996e7db
15472 changed files with 3536181 additions and 0 deletions
@@ -0,0 +1,103 @@
+// 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/all_reduce_kernel.h"
+
+#include "paddle/phi/backends/all_context.h"
+#include "paddle/phi/core/kernel_registry.h"
+
+#if defined(PADDLE_WITH_GLOO)
+#include "paddle/phi/core/distributed/gloo_comm_context.h"
+#endif
+#ifdef PADDLE_WITH_CUSTOM_DEVICE
+#include "paddle/phi/core/distributed/xccl_comm_context.h"
+#endif
+
+namespace phi {
+
+template <typename T, typename Context>
+void AllReduceKernel(const Context& dev_ctx,
+                     const DenseTensor& x,
+                     int reduce_type,
+                     DenseTensor* out) {
+#if defined(PADDLE_WITH_GLOO)
+  out->Resize(x.dims());
+  dev_ctx.template Alloc<T>(out);
+
+  auto comm_ctx =
+      static_cast<distributed::GlooCommContext*>(dev_ctx.GetCommContext());
+  PADDLE_ENFORCE_NE(
+      comm_ctx,
+      nullptr,
+      errors::Unavailable("NCCLCommContext is nullptr, collective op should "
+                          "has ring_id attr."));
+  comm_ctx->AllReduce(out, x, reduce_type);
+
+#else
+  PADDLE_THROW(
+      errors::PreconditionNotMet("PaddlePaddle should compile with GPU."));
+#endif
+}
+
+#ifdef PADDLE_WITH_CUSTOM_DEVICE
+template <typename T>
+void AllReduceKernel(const CustomContext& dev_ctx,
+                     const DenseTensor& x,
+                     int reduce_type,
+                     DenseTensor* out) {
+  out->Resize(x.dims());
+  dev_ctx.template Alloc<T>(out);
+
+  auto comm_ctx =
+      static_cast<distributed::XCCLCommContext*>(dev_ctx.GetCommContext());
+  PADDLE_ENFORCE_NE(
+      comm_ctx,
+      nullptr,
+      errors::Unavailable("XCCLCommContext is nullptr, collective op should "
+                          "has ring_id attr."));
+  comm_ctx->AllReduce(
+      out, x, ccl::ToXCCLReduceOp(reduce_type), dev_ctx.stream());
+}
+#endif
+
+}  // namespace phi
+
+PD_REGISTER_KERNEL(all_reduce,
+                   CPU,
+                   ALL_LAYOUT,
+                   phi::AllReduceKernel,
+                   float,
+                   double,
+                   int,
+                   bool,
+                   int8_t,
+                   uint8_t,
+                   int16_t,
+                   int64_t,
+                   phi::float16) {}
+
+#ifdef PADDLE_WITH_CUSTOM_DEVICE
+PD_REGISTER_KERNEL(all_reduce,
+                   Custom,
+                   ALL_LAYOUT,
+                   phi::AllReduceKernel,
+                   float,
+                   double,
+                   int,
+                   bool,
+                   int8_t,
+                   uint8_t,
+                   int64_t,
+                   phi::float16) {}
+#endif