fix gpugraph cuda error;test=develop (#56133)

paddle/fluid/framework/data_feed.cu

@@ -1077,6 +1077,7 @@ void GraphDataGenerator::FillOneStep(uint64_t *d_start_ids,
                                      int cur_degree,
                                      int step,
                                      int *len_per_row) {
+  platform::CUDADeviceGuard guard(gpuid_);
   auto gpu_graph_ptr = GraphGpuWrapper::GetInstance();
   uint64_t node_id = gpu_graph_ptr->edge_to_node_map_[etype_id];
   uint8_t edge_src_id = node_id >> 32;
@@ -2349,6 +2350,7 @@ int GraphDataGenerator::FillWalkBuf() {
       break;
     }
   }
+  platform::CUDADeviceGuard guard2(gpuid_);
   buf_state_.Reset(total_row_);
   int *d_random_row = reinterpret_cast<int *>(d_random_row_->ptr());
 
@@ -2584,6 +2586,7 @@ int GraphDataGenerator::FillWalkBufMultiPath() {
       break;
     }
   }
+  platform::CUDADeviceGuard guard2(gpuid_);
   buf_state_.Reset(total_row_);
   int *d_random_row = reinterpret_cast<int *>(d_random_row_->ptr());