pp 策略调整后，模型转换，以便模型热启

python/paddle/distributed/fleet/meta_parallel/parallel_layers/pp_layers.py

@@ -532,7 +532,7 @@ def _segment_network_for_interleave(self, seg_method):
         self.segment_parts = seg.do_segment()
 
         logger.info(
-            "segment result:"
+            f"segment with method: {seg_method}; result: "
             + ", ".join(str(arg) for arg in self.segment_parts)
         )
 
@@ -562,7 +562,7 @@ def _segment_network(self, seg_method):
         self.segment_parts = seg.do_segment()
 
         logger.info(
-            "segment result:"
+            f"segment with method: {seg_method}; result: "
             + ", ".join(str(arg) for arg in self.segment_parts)
         )