Multistep optimizer "Failed to place the graph without changing the devices" non fatal

[colmantse]

Description

Received warning as below: Failed to place the graph without changing the devices of some resources. Some of the operations (that had to be colocated with resource generating operations) are not supported on the resources' devices. Current candidate devices are [...... ...

Environment information

t2t 1.15.4 tf 1.15.2 2 1080 ti GPU

Thank you for the awesome class, it saved me from the resource blackhole. However, as mentioned, when running, i received the above warning. Although the program continue to run smoothly I would like to confirm if the message could safely be ignored.

[Nanamumuhan]

How to solve this problem?

[rongleiji]

Me too. So many bugs