add trace op_register_version and fix version bug; test=op_version (PaddlePaddle#30000)

* add trace op_register_version and fix defaulf bug; test=op_version

* add trace op_register_version; test=op_version

* add trace op_register_version; test=op_version

* add trace op_register_version; test=op_version

* fix missing the template bug of vector; test=op_version

Author: MingMingShangTian

paddle/fluid/operators/trace_op.cc

@@ -13,6 +13,7 @@
 // limitations under the License.
 
 #include "paddle/fluid/operators/trace_op.h"
+#include "paddle/fluid/framework/op_version_registry.h"
 
 namespace paddle {
 namespace operators {
@@ -88,13 +89,13 @@ class TraceOpMaker : public framework::OpProtoAndCheckerMaker {
         R"DOC((int, default 0), the first axis of the 2-D planes from which the diagonals should be taken. 
         Can be either positive or negative. Default: 0.
         )DOC")
-        .SetDefault(-2);
+        .SetDefault(0);
     AddAttr<int>(
         "axis2",
         R"DOC((int, default 1), the second axis of the 2-D planes from which the diagonals should be taken. 
         Can be either positive or negative. Default: 1.
         )DOC")
-        .SetDefault(-1);
+        .SetDefault(1);
     AddComment(R"DOC(
 Trace Operator.
 Return the sum along diagonals of the input tensor.
@@ -177,3 +178,21 @@ REGISTER_OP_CPU_KERNEL(
                          paddle::platform::complex64>,
     ops::TraceGradKernel<paddle::platform::CPUDeviceContext,
                          paddle::platform::complex128>);
+
+/* ==========================  register checkpoint ===========================*/
+REGISTER_OP_VERSION(trace)
+    .AddCheckpoint(
+        R"ROC(Upgrade trace add a new attribute [axis2])ROC",
+        paddle::framework::compatible::OpVersionDesc()
+            .NewAttr("axis1",
+                     "The added attribute 'axis1' is not yet registered.",
+                     std::vector<float>{0.0f})
+            .NewAttr("axis2",
+                     "The added attribute 'axis2' is not yet registered.",
+                     std::vector<float>{1.0f})
+            .DeleteAttr("dim1",
+                        "The attribute 'dim1' is not recommend according to "
+                        "the specification 2.0.")
+            .DeleteAttr("dim2",
+                        "The attribute 'dim2' is not recommend according to "
+                        "the specification 2.0."));