enable coll and comm

src/collective/aggregator.hip.h

@@ -0,0 +1,4 @@
+
+#pragma once
+
+#include "aggregator.cuh"

src/collective/coll.cu

@@ -10,7 +10,11 @@
 #include "allgather.h"  // for AllgatherVOffset
 #include "coll.cuh"
 #include "comm.cuh"
+#if defined(XGBOOST_USE_NCCL)
 #include "nccl.h"
+#elif defined(XGBOOST_USE_RCCL)
+#include "rccl.h"
+#endif
 #include "xgboost/collective/result.h"  // for Result
 #include "xgboost/span.h"               // for Span
 
@@ -29,7 +33,11 @@ Result GetNCCLResult(ncclResult_t code) {
   if (code == ncclUnhandledCudaError) {
     // nccl usually preserves the last error so we can get more details.
     auto err = cudaPeekAtLastError();
+#if defined(XGBOOST_USE_NCCL)
     ss << "  CUDA error: " << thrust::system_error(err, thrust::cuda_category()).what() << "\n";
+#elif defined(XGBOOST_USE_RCCL)
+    ss << "  CUDA error: " << thrust::system_error(err, thrust::hip_category()).what() << "\n";
+#endif
   } else if (code == ncclSystemError) {
     ss << "  This might be caused by a network configuration issue. Please consider specifying "
           "the network interface for NCCL via environment variables listed in its reference: "

src/collective/coll.hip

@@ -0,0 +1,4 @@
+
+#if defined(XGBOOST_USE_HIP)
+#include "coll.cu"
+#endif

src/collective/coll.hip.h

@@ -0,0 +1,4 @@
+
+#pragma once
+
+#include "coll.cuh"

src/collective/comm.cu

@@ -36,12 +36,22 @@ Result GetUniqueId(Comm const& comm, ncclUniqueId* pid) {
 }
 
 inline constexpr std::size_t kUuidLength =
+#if defined(XGBOOST_USE_CUDA)
   sizeof(std::declval<cudaDeviceProp>().uuid) / sizeof(std::uint64_t);
+#elif defined(XGBOOST_USE_HIP)
+  sizeof(hipUUID) / sizeof(uint64_t);
+#endif
 
 void GetCudaUUID(xgboost::common::Span<std::uint64_t, kUuidLength> const& uuid, DeviceOrd device) {
+#if defined(XGBOOST_USE_CUDA)
   cudaDeviceProp prob{};
   dh::safe_cuda(cudaGetDeviceProperties(&prob, device.ordinal));
-  std::memcpy(uuid.data(), static_cast<void*>(&(prob.uuid)), sizeof(prob.uuid));
+  std::memcpy(uuid.data(), static_cast<void *>(&(prob.uuid)), sizeof(prob.uuid));
+#elif defined(XGBOOST_USE_HIP)
+  hipUUID id;
+  hipDeviceGetUuid(&id, device.ordinal);
+  std::memcpy(uuid.data(), static_cast<void *>(&id), sizeof(id));
+#endif
 }
 
 static std::string PrintUUID(xgboost::common::Span<std::uint64_t, kUuidLength> const& uuid) {

src/collective/comm.cuh

@@ -3,8 +3,11 @@
  */
 #pragma once
 
-#if defined(XGBOOST_USE_NCCL) || defined(XGBOOST_USE_RCCL)
+#if defined(XGBOOST_USE_NCCL)
 #include "nccl.h"
+#elif defined(XGBOOST_USE_RCCL)
+#include "../common/cuda_to_hip.h"
+#include "rccl.h"
 #endif  // XGBOOST_USE_NCCL
 #include "../common/device_helpers.cuh"
 #include "coll.h"
@@ -17,7 +20,11 @@ inline Result GetCUDAResult(cudaError rc) {
   if (rc == cudaSuccess) {
     return Success();
   }
+#if defined(XGBOOST_USE_NCCL)
   std::string msg = thrust::system_error(rc, thrust::cuda_category()).what();
+#elif defined(XGBOOST_USE_RCCL)
+  std::string msg = thrust::system_error(rc, thrust::hip_category()).what();
+#endif
   return Fail(msg);
 }
 

src/collective/comm.hip

@@ -0,0 +1,4 @@
+
+#if defined(XGBOOST_USE_HIP)
+#include "comm.cu"
+#endif

src/collective/comm.hip.h

@@ -0,0 +1,4 @@
+
+#pragma once
+
+#include "comm.cuh"

src/common/cuda_to_hip.h

@@ -6,7 +6,9 @@
 #if defined(XGBOOST_USE_HIP)
 
 #define cudaSuccess                  hipSuccess
+#define cudaError                    hipError_t
 #define cudaGetLastError             hipGetLastError
+#define cudaPeekAtLastError          hipPeekAtLastError
 
 #define cudaStream_t                 hipStream_t
 #define cudaStreamCreate             hipStreamCreate

tests/cpp/collective/test_allgather.cu

@@ -1,7 +1,7 @@
 /**
  * Copyright 2023, XGBoost Contributors
  */
-#if defined(XGBOOST_USE_NCCL)
+#if defined(XGBOOST_USE_NCCL) || defined(XGBOOST_USE_RCCL)
 #include <gtest/gtest.h>
 #include <thrust/device_vector.h>  // for device_vector
 #include <thrust/equal.h>          // for equal

tests/cpp/collective/test_allgather.hip

@@ -0,0 +1,4 @@
+
+#if defined(XGBOOST_USE_HIP)
+#include "test_allgather.cu"
+#endif

tests/cpp/collective/test_allreduce.cu

@@ -1,7 +1,7 @@
 /**
  * Copyright 2023, XGBoost Contributors
  */
-#if defined(XGBOOST_USE_NCCL)
+#if defined(XGBOOST_USE_NCCL) || defined(XGBOOST_USE_RCCL)
 #include <gtest/gtest.h>
 #include <thrust/host_vector.h>  // for host_vector
 

tests/cpp/collective/test_allreduce.hip

@@ -0,0 +1,4 @@
+
+#if defined(XGBOOST_USE_HIP)
+#include "test_allreduce.cu"
+#endif

tests/cpp/common/test_transform_range.hip

@@ -0,0 +1,4 @@
+
+#if defined(XGBOOST_USE_HIP)
+#include "test_transform_range.cu"
+#endif

tests/cpp/gbm/test_gblinear.hip

@@ -0,0 +1,4 @@
+
+#if defined(XGBOOST_USE_HIP)
+#include "test_gblinear.cu"
+#endif

tests/cpp/gbm/test_gbtree.hip

@@ -0,0 +1,4 @@
+
+#if defined(XGBOOST_USE_HIP)
+#include "test_gbtree.cu"
+#endif

tests/cpp/tree/gpu_hist/test_expand_entry.hip

@@ -0,0 +1,4 @@
+
+#if defined(XGBOOST_USE_HIP)
+#include "test_expand_entry.cu"
+#endif