We installed all required dependencies for the model on a new server following the instructions on the official website. However, when using the 2025 version of the Intel compiler, it is incompatible with CESM. We found that starting from version 2025, Intel’s classic Fortran compiler ifort has been deprecated and replaced by the new-generation compiler ifx. While ifx is designed to provide better language support, the CESM codebase (especially underlying libraries such as MCT) was written and tested based on the specific behavior of ifort. This change in the underlying toolchain has caused new compatibility issues. However, when we reinstalled the 2023 version of the Intel compiler, it presents compatibility issues with the header files on our current new server, such as floating-point operation problems.
Regarding these issues, we would like to know whether there is a compiler version that is compatible with both our server and CESM. If yes, what impact will this compiler version have on our future model operations?
Thank you very much!!!
Regarding these issues, we would like to know whether there is a compiler version that is compatible with both our server and CESM. If yes, what impact will this compiler version have on our future model operations?
Thank you very much!!!