Reviewer1

[prudhomm]

The present work provides an overview of the Ktirio Urban Building framework (KUB), starting with an overview of the workflow and a description of some of the main ingredients of the software stack and discusses some current results performed on EuroHPC JU supercomputers using an innovative CI/CD pipeline. Scaling results indicate that further improvement of file I/Os in the post- processing parts is needed for better efficiency with larger number of compute nodes.

Generally, this is an interesting work, but the reviewer would like authors to clarify the following:

1. More detailed information of target PDEs and models should be provided. see Reviewer2 #9 and Add governing equation section  #6
2. It is necessary to describe the size of the data to be handled. describe the size of the data to be handled. #13
3. It is necessary to explain how users are expected to use the results and how this will be achieved. explain how users are expected to use the results and how this will be achieved. #14
4. A detailed explanation of how important real-time processing is for this project is required.
5. Detailed information of supercomputing environments are needed.
6. It is also helpful if the information of total elapsed time is added to Fig.11. add information of total elapsed time in Fig.11 #17