Thanks for your response.
By default, momentum is zero, change in this PR is not reached.  May I know when the binary release is built? Is this fix or relate fix is included?
The source code doesn’t build on our server. I am guessing it’s due to out-of-date CUDA/driver/dependency. I don’t have root permission, which may take a lot time to verify who is the trouble maker. Could you please kindly update the binary release at your convenience?