diff --git a/example/auto_compression/README.md b/example/auto_compression/README.md
index bce9764ef2ff1d4eaf02c07d2f56f6aa7a676669..b761402ff1357334215c5a64f61963f2d141a878 100644
--- a/example/auto_compression/README.md
+++ b/example/auto_compression/README.md
@@ -33,7 +33,7 @@ import paddle
 from PIL import Image
 from paddle.vision.datasets import DatasetFolder
 from paddle.vision.transforms import transforms
-from paddleslim.auto_compression import AutoCompression, Quantization, HyperParameterOptimization
+from paddleslim.auto_compression import AutoCompression
 paddle.enable_static()
 # 定义DataSet
 class ImageNetDataset(DatasetFolder):
@@ -65,7 +65,7 @@ ac = AutoCompression(
     model_filename="inference.pdmodel",
     params_filename="inference.pdiparams",
     save_dir="output",
-    config={'Quantization': Quantization(), "HyperParameterOptimization": HyperParameterOptimization(max_quant_count=5)},
+    config={'Quantization': {}, "HyperParameterOptimization": {'max_quant_count': 5}},
     train_dataloader=train_loader,
     eval_dataloader=train_loader)  # eval_function to verify accuracy
 ac.compress()
diff --git a/paddleslim/quant/post_quant_hpo.py b/paddleslim/quant/post_quant_hpo.py
index e92742d09c9d4e5a4d0fc40e63429e79fac7c21a..9f9275f8a6cf161fd1f9406b61c59eace0bfd99a 100755
--- a/paddleslim/quant/post_quant_hpo.py
+++ b/paddleslim/quant/post_quant_hpo.py
@@ -17,6 +17,7 @@ import os
 import sys
 import math
 import time
+from time import gmtime, strftime
 import numpy as np
 import shutil
 import paddle
@@ -40,7 +41,7 @@ from paddleslim.quant import quant_post
 
 _logger = get_logger(__name__, level=logging.INFO)
 
-SMAC_TMP_FILE_PATTERN = "smac3-output*"
+SMAC_TMP_FILE_PATTERN = "smac3-output_"
 
 
 def remove(path):
@@ -496,6 +497,9 @@ def quant_post_hpo(
 
     cs.add_hyperparameters(hyper_params)
 
+    s_datetime = strftime("%Y-%m-%d-%H:%M:%S", gmtime())
+    smac_output_dir = SMAC_TMP_FILE_PATTERN + s_datetime
+
     scenario = Scenario({
         "run_obj": "quality",  # we optimize quality (alternative runtime)
         "runcount-limit":
@@ -503,7 +507,9 @@ def quant_post_hpo(
         "cs": cs,  # configuration space
         "deterministic": "True",
         "limit_resources": "False",
-        "memory_limit": 4096  # adapt this to reasonable value for your hardware
+        "memory_limit":
+        4096,  # adapt this to reasonable value for your hardware
+        "output_dir": smac_output_dir  # output_dir
     })
     # To optimize, we pass the function to the SMAC-object
     smac = SMAC4HPO(
@@ -523,5 +529,5 @@ def quant_post_hpo(
     inc_value = smac.get_tae_runner().run(incumbent, 1)[1]
     _logger.info("Optimized Value: %.8f" % inc_value)
     shutil.rmtree(g_quant_model_cache_path)
-    remove(SMAC_TMP_FILE_PATTERN)
+    remove(smac_output_dir)
     _logger.info("Quantization completed.")