This keyword specifies the name of the file from which wavefunction and density data should be restored when performing a CONTINUATION or a REUSE run.
NULL means that wavefunction and density data will not be restored.
The basis set and distribution for the new run must be the same as those from the run in which the data file was written.
ELEC_RESTORE_FILE : test.wvfn
CASTEP keyword glossary
CASTEP parameters keywords