update the dist ut for virtual pipeline (#45785)

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

@@ -216,7 +216,7 @@ if((WITH_GPU) AND LOCAL_ALL_PLAT)
   )
   set_tests_properties(
     test_parallel_dygraph_pipeline_parallel_with_virtual_stage
-    PROPERTIES TIMEOUT "500" RUN_SERIAL 1)
+    PROPERTIES TIMEOUT "500")
 endif()
 if((WITH_GPU
     OR WITH_XPU

python/paddle/fluid/tests/unittests/collective/fleet/testslist.csv

@@ -16,7 +16,7 @@ test_fleet_graph_execution_meta_optimizer,,GPU;XPU;ASCEND;ASCEND_CL,,DIST,../../
 test_communicator_half_async,,,120,DIST,test_runner.py,2,,FLAGS_communicator_send_queue_size=1;FLAGS_communicator_max_merge_var_num=1;http_proxy=;https_proxy=;PYTHONPATH=../..,WITH_NCCL
 test_fleet_graph_executor,,GPU;XPU;ASCEND;ASCEND_CL,,DIST,test_runner.py,2,,http_proxy=;https_proxy=;PYTHONPATH=../..,
 test_parallel_dygraph_pipeline_parallel,,GPU,500,DIST,../../dist_test.sh,2,,http_proxy=;https_proxy=;PYTHONPATH=../..,
-test_parallel_dygraph_pipeline_parallel_with_virtual_stage,,GPU,500,DIST,../../dist_test.sh,2,1,http_proxy=;https_proxy=;PYTHONPATH=../..,
+test_parallel_dygraph_pipeline_parallel_with_virtual_stage,,GPU,500,DIST,../../dist_test.sh,2,,http_proxy=;https_proxy=;PYTHONPATH=../..,
 test_fleet_localsgd_meta_optimizer,LINUX,GPU;XPU;ASCEND;ASCEND_CL,,DIST,test_runner.py,2,,http_proxy=;https_proxy=;PYTHONPATH=../..,
 test_parallel_class_center_sample,,GPU,120,DIST,../../dist_test.sh,2,,http_proxy=;https_proxy=;PYTHONPATH=../..,WITH_NCCL
 test_pipeline,,,120,DIST,../../dist_test.sh,2,,http_proxy=;https_proxy=;PYTHONPATH=../..,