[Fix] Fix parrots CI (#2737)

* Chery pick from PR #2515 and #2684

* Fix

mmcv/ops/bbox.py

@@ -116,6 +116,10 @@ def bbox_overlaps(bboxes1: torch.Tensor,
     if rows * cols == 0:
         return ious
 
+    if bboxes1.device.type == 'cpu' and torch.__version__ == 'parrots':
+        return _bbox_overlaps_cpu(
+            bboxes1, bboxes2, mode=mode, aligned=aligned, offset=offset)
+
     ext_module.bbox_overlaps(
         bboxes1, bboxes2, ious, mode=mode_flag, aligned=aligned, offset=offset)
 

mmcv/ops/csrc/parrots/cudabind.cpp

@@ -564,57 +564,6 @@ REGISTER_DEVICE_IMPL(group_points_forward_impl, CUDA,
 REGISTER_DEVICE_IMPL(group_points_backward_impl, CUDA,
                      group_points_backward_cuda);
 
-void IoU3DBoxesOverlapBevForwardCUDAKernelLauncher(const int num_a,
-                                                   const Tensor boxes_a,
-                                                   const int num_b,
-                                                   const Tensor boxes_b,
-                                                   Tensor ans_overlap);
-
-void IoU3DNMS3DForwardCUDAKernelLauncher(const Tensor boxes, Tensor& keep,
-                                         Tensor& keep_num,
-                                         float nms_overlap_thresh);
-
-void IoU3DNMS3DNormalForwardCUDAKernelLauncher(const Tensor boxes, Tensor& keep,
-                                               Tensor& keep_num,
-                                               float nms_overlap_thresh);
-
-void iou3d_boxes_overlap_bev_forward_cuda(const int num_a, const Tensor boxes_a,
-                                          const int num_b, const Tensor boxes_b,
-                                          Tensor ans_overlap) {
-  IoU3DBoxesOverlapBevForwardCUDAKernelLauncher(num_a, boxes_a, num_b, boxes_b,
-                                                ans_overlap);
-};
-
-void iou3d_nms3d_forward_cuda(const Tensor boxes, Tensor& keep,
-                              Tensor& keep_num, float nms_overlap_thresh) {
-  IoU3DNMS3DForwardCUDAKernelLauncher(boxes, keep, keep_num,
-                                      nms_overlap_thresh);
-};
-
-void iou3d_nms3d_normal_forward_cuda(const Tensor boxes, Tensor& keep,
-                                     Tensor& keep_num,
-                                     float nms_overlap_thresh) {
-  IoU3DNMS3DNormalForwardCUDAKernelLauncher(boxes, keep, keep_num,
-                                            nms_overlap_thresh);
-};
-
-void iou3d_boxes_overlap_bev_forward_impl(const int num_a, const Tensor boxes_a,
-                                          const int num_b, const Tensor boxes_b,
-                                          Tensor ans_overlap);
-
-void iou3d_nms3d_forward_impl(const Tensor boxes, Tensor& keep,
-                              Tensor& keep_num, float nms_overlap_thresh);
-
-void iou3d_nms3d_normal_forward_impl(const Tensor boxes, Tensor& keep,
-                                     Tensor& keep_num,
-                                     float nms_overlap_thresh);
-
-REGISTER_DEVICE_IMPL(iou3d_boxes_overlap_bev_forward_impl, CUDA,
-                     iou3d_boxes_overlap_bev_forward_cuda);
-REGISTER_DEVICE_IMPL(iou3d_nms3d_forward_impl, CUDA, iou3d_nms3d_forward_cuda);
-REGISTER_DEVICE_IMPL(iou3d_nms3d_normal_forward_impl, CUDA,
-                     iou3d_nms3d_normal_forward_cuda);
-
 void KNNForwardCUDAKernelLauncher(int b, int n, int m, int nsample,
                                   const Tensor xyz, const Tensor new_xyz,
                                   Tensor idx, Tensor dist2);

setup.py

@@ -153,6 +153,9 @@ def get_extensions():
             glob.glob('./mmcv/ops/csrc/parrots/*.cpp')
         include_dirs.append(os.path.abspath('./mmcv/ops/csrc/common'))
         include_dirs.append(os.path.abspath('./mmcv/ops/csrc/common/cuda'))
+        op_files.remove('./mmcv/ops/csrc/pytorch/cuda/iou3d_cuda.cu')
+        op_files.remove('./mmcv/ops/csrc/pytorch/cpu/bbox_overlaps_cpu.cpp')
+        op_files.remove('./mmcv/ops/csrc/pytorch/cuda/bias_act_cuda.cu')
         cuda_args = os.getenv('MMCV_CUDA_ARGS')
         extra_compile_args = {
             'nvcc': [cuda_args, '-std=c++14'] if cuda_args else ['-std=c++14'],