This command checks and prints the status of the specified program steps. commands may be a list of commands for wavefunction calculations previously executed in the current job. If no command or LAST is specified, the status of the last step is checked. If ALL is given, all program steps are checked.
If CRASH or STOP is given, the program will crash or stop, respectively, if the status was not o.k. (STOP is default). If IGNORE is given, any bad status is ignored. If CLEAR is specified, all status information for the checked program steps is erased, so there will be no crash at subsequent status checks.
By default, the program automatically does the following checks:
1.) If an orbital optimization did not converge, and the resulting orbitals are used in a subsequent correlation calculation, an error will result. This error exit can be avoided using the IGNORE_ERROR option on the ORBITAL directive.
2.) If a CCSDQCIBCCLMPn calculation did not converge, further program steps which depend on the solution (e.g, Triples, CPHF, EOM) will not be done and an error will result. This can be avoided using the NOCHECK option on the command line.
3.) In geometry optimizations or frequency calculations no convergence will lead to immediate error exits.