The program lapw1 is executed by invoking the command:
x lapw1 [-c -up|dn -it -p -nohns #] orlapw1 lapw1.def or lapw1c lapw1.def
In cases without inversion symmetry, the default input filename is case.in1c. For semi-core calculations the lapw1s.def file uses a case.in1s file and creates the files case.output1s and case.vectors. For the spin-polarized case lapw1 is called twice with uplapw1.def and dnlapw1.def. To all relevant files the keywords ``up`` or ``dn`` are appended (see the fcc Ni test case in the WIEN97 package). The switch -nohns skips the calculation of the nonspherical matrix elements inside the sphere for # iterations. This may be used to save computer time during the first scf cycles.