run dist tests in serial test=develop

python/paddle/fluid/tests/unittests/CMakeLists.txt

@@ -86,6 +86,8 @@ if(WITH_DISTRIBUTE)
         # FIXME(typhoonzero): add this back
 	#py_test_modules(test_dist_transformer MODULES test_dist_transformer)
 	#set_tests_properties(test_dist_transformer PROPERTIES TIMEOUT 1000)
+        # TODO(typhoonzero): make dist test parallel when fix port management issue
+        set_tests_properties(test_dist_mnist test_dist_word2vec test_dist_se_resnext test_dist_ctr test_dist_simnet_bow test_dist_save_load test_dist_text_classification test_dist_mnist_batch_merge PROPERTIES RUN_SERIAL TRUE)
     endif(NOT APPLE)
     py_test_modules(test_dist_transpiler MODULES test_dist_transpiler)
 endif()