---
title: WF0002 Model_Performance_Not_Optimal
description: "Model performance may not be optimal due to changes in UB fusion."
url: https://www.hiascend.com/document/detail/zh/canncommercial/latest/maintenref/troubleshooting/atlaserrorcode_15_0191.html
sourcePath: /source/zh/canncommercial/900/maintenref/troubleshooting/atlaserrorcode_15_0191.html
indexId: 1a8a6c0d0372e8fe32da481eead046f7a03470741a99b199da4a6b063941ee9e84
---
# WF0002 Model_Performance_Not_Optimal

#### Symptom

Model performance may not be optimal due to changes in UB fusion.


#### Solution

Re-tune the subgraphs with AOE SGAT.