Merge pull request #1362 from panyx0718/fix2

fix model to use different names for train and test so that var name …

fluid/object_detection/train.py

@@ -92,13 +92,14 @@ def build_program(main_prog, startup_prog, train_params, is_train):
             image, gt_box, gt_label, difficult = fluid.layers.read_file(py_reader)
             locs, confs, box, box_var = mobile_net(class_num, image, image_shape)
             if is_train:
+                with fluid.unique_name.guard("train"):
                     loss = fluid.layers.ssd_loss(locs, confs, gt_box, gt_label, box,
                         box_var)
                     loss = fluid.layers.reduce_sum(loss)
                     optimizer = optimizer_setting(train_params)
                     optimizer.minimize(loss)
             else:
-
+                with fluid.unique_name.guard("inference"):
                     nmsed_out = fluid.layers.detection_output(
                         locs, confs, box, box_var, nms_threshold=0.45)
                     loss = fluid.evaluator.DetectionMAP(