GROMACS version:2021.4
GROMACS modification: Yes/No
Here post your question : I have run a short MD simulation of 25ns on my PC, where I used GROMACS version 2021.4. But while extending this simulation on HPC, I found the module available there is 2023.1. Is it okay if I use 2021.4 in the script?
A later version of GROMACS should (in theory) be backwards compatible (within certain limits). So, you should be able to use your .tpr file from 2021.4 with 2023.1.