fix syn_bn for npu (#8247)

Author: YanhuiDua

ppdet/engine/trainer.py

@@ -429,10 +429,8 @@ def train(self, validate=False):
         model = self.model
         if self.cfg.get('to_static', False):
             model = apply_to_static(self.cfg, model)
-        sync_bn = (
-            getattr(self.cfg, 'norm_type', None) == 'sync_bn' and
-            (self.cfg.use_gpu or self.cfg.use_npu or self.cfg.use_mlu) and
-            self._nranks > 1)
+        sync_bn = (getattr(self.cfg, 'norm_type', None) == 'sync_bn' and
+                   (self.cfg.use_gpu or self.cfg.use_mlu) and self._nranks > 1)
         if sync_bn:
             model = paddle.nn.SyncBatchNorm.convert_sync_batchnorm(model)
 

ppdet/modeling/heads/sparsercnn_head.py

@@ -317,12 +317,15 @@ def _init_box_pooler(input_shape):
             pooler_scales = [1.0 / 4.0, 1.0 / 8.0, 1.0 / 16.0, 1.0 / 32.0]
             end_level = 3
 
+        aligned = True
+        if paddle.device.is_compiled_with_custom_device('npu'):
+            aligned = False
         box_pooler = RoIAlign(
             resolution=pooler_resolution,
             spatial_scale=pooler_scales,
             sampling_ratio=sampling_ratio,
             end_level=end_level,
-            aligned=True)
+            aligned=aligned)
         return box_pooler
 
     def forward(self, features, input_whwh):