5.1.11 iparm(_JT_ prein_) - indicates whether or not a preconditioner will be passed in

• Current index: 11
• Intent: In
• Default: _JT_ prein_ no_
• Values:

  Variable	Meaning	Value
  _JT_ prein_ no_	no	0
  _JT_ prein_ yes_	yes	1

• _JT_ prein_ yes_ can be useful in, for example, time-dependent problems when many systems with similar coefficient matrices are solved.