Whether to use a layout for states parallelization which is compatible with ScaLAPACK.
The default is yes for CalculationMode = gs, unocc, go without k-point parallelization,
and no otherwise. (Setting to other than default is experimental.)
The value must be yes if any ScaLAPACK routines are called in the course of the run;
it must be set by hand for td with TDDynamics = bo.
This variable has no effect unless you are using states parallelization and have linked ScaLAPACK.
Note: currently, use of ScaLAPACK is not compatible with task parallelization (i.e. slaves).