From 123cf165fb031e8e0e9170c17ba59deb95e9dc76 Mon Sep 17 00:00:00 2001 From: qingqing01 Date: Tue, 27 Mar 2018 11:11:24 +0800 Subject: [PATCH] Set stop_gradient=True for some variables in SSD API. (#9396) --- python/paddle/fluid/layers/detection.py | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/python/paddle/fluid/layers/detection.py b/python/paddle/fluid/layers/detection.py index cd519e1ee0..3e649dc5fd 100644 --- a/python/paddle/fluid/layers/detection.py +++ b/python/paddle/fluid/layers/detection.py @@ -134,6 +134,7 @@ def detection_output(loc, scores = nn.softmax(input=scores) scores = ops.reshape(x=scores, shape=old_shape) scores = nn.transpose(scores, perm=[0, 2, 1]) + scores.stop_gradient = True nmsed_outs = helper.create_tmp_variable(dtype=decoded_box.dtype) helper.append_op( type="multiclass_nms", @@ -148,6 +149,7 @@ def detection_output(loc, 'score_threshold': score_threshold, 'nms_eta': 1.0 }) + nmsed_outs.stop_gradient = True return nmsed_outs @@ -837,4 +839,6 @@ def multi_box_head(inputs, mbox_locs_concat = tensor.concat(mbox_locs, axis=1) mbox_confs_concat = tensor.concat(mbox_confs, axis=1) + box.stop_gradient = True + var.stop_gradient = True return mbox_locs_concat, mbox_confs_concat, box, var -- GitLab