This message simply says that there was an error. In order for us to help you, we need to know what the error actually was! What kind of calculation were you doing? How far did the calculation get? Is there a CASTEP output file we can see?Did the CASTEP calculation give an error file (filename ending ".err")?
Respected @Philip James Hasnip thanks for reply. I inbox you complete details about my calculations. In short , unfortunately I could not perform calculations.
Shakeel Ahmad Doping, phonon, supercell, and these types of jobs require a lot of rams, which may cause job failure. Or your calculation may not be appropriate.
Md Borhan Uddin thanks... same as u said I am working with the crystal system due I couldn't get any single iteration. After that I stopped the system.
The same error occurs to me. During the geometric optimization calculation with CASTEP, the program gives an error in the 4th iteration. Philip James Hasnip can you please help me too
Crystal system and corresponding parameters settings are crucial for the successful program running using CASTEP software. Moreover, PC configuration is another important issue. For example, if you run a program of a complex crystalline material with a hybrid function with low configured PC then the program will be failed in most cases even after long time. Thus, at first, check the stability of the system and run the program with simple potential keeping all parameters perfect