namespace to reduce code

src/data/data.cu

@@ -15,13 +15,6 @@
 #include "xgboost/json.h"
 #include "xgboost/logging.h"
 
-#if defined(XGBOOST_USE_HIP)
-namespace cub = hipcub;
-namespace thrust {
-    namespace cuda = thrust::hip;
-}
-#endif
-
 namespace xgboost {
 namespace {
 auto SetDeviceToPtr(void const* ptr) {

src/data/device_adapter.cuh

@@ -17,12 +17,6 @@
 #include "adapter.h"
 #include "array_interface.h"
 
-#if defined(XGBOOST_USE_HIP)
-namespace thrust {
-    namespace cuda = thrust::hip;
-}
-#endif
-
 namespace xgboost {
 namespace data {
 

src/data/iterative_dmatrix.cu

@@ -16,12 +16,6 @@
 #include "simple_batch_iterator.h"
 #include "sparse_page_source.h"
 
-#if defined(XGBOOST_USE_HIP)
-namespace thrust {
-    namespace cuda = thrust::hip;
-}
-#endif
-
 namespace xgboost::data {
 void IterativeDMatrix::InitFromCUDA(Context const* ctx, BatchParam const& p,
                                     DataIterHandle iter_handle, float missing,

src/data/simple_dmatrix.cuh

@@ -13,12 +13,6 @@
 #include "../common/error_msg.h"  // for InfInData
 #include "device_adapter.cuh"     // for HasInfInData
 
-#if defined(XGBOOST_USE_HIP)
-namespace thrust {
-    namespace cuda = thrust::hip;
-}
-#endif
-
 namespace xgboost::data {
 
 #if defined(XGBOOST_USE_CUDA)