[NPU] refine npu data_device_transform (#33224)

paddle/fluid/framework/data_device_transform.cc

@@ -26,6 +26,13 @@ void TransDataDevice(const Tensor &in, const platform::Place &dst_place,
       platform::errors::Unavailable("Currently, model parallelism is only "
                                     "supported between CPU and CUDA."));
 
+  // NOTE(zhiqiu): Special case for CPU->NPU, avoid stream sync.
+  if (platform::is_cpu_place(in.place()) && platform::is_npu_place(dst_place)) {
+    TensorCopy(in, dst_place,
+               *platform::DeviceContextPool::Instance().Get(dst_place), out);
+    return;
+  }
+
   // NOTE(yy): TransDataDevice should wait for computation of input.
   if (!platform::is_cuda_pinned_place(in.place())) {
     platform::DeviceContextPool::Instance().Get(in.place())->Wait();