A method specification file comprises a collection of keywords. Each keyword must occur on a separate line. The position on the line is unimportant. Blank lines are ignored. Only the first 8 characters of the keyword are significant and the remainder may be ignored. Any keyword may appear as a mixture of lower and upper case characters. Some keywords have associated integer or real data; this data must follow the keyword on the same line and the two items must be separated by one or more blanks. Each keyword specified overrides or reinforces a default definition. Contradictions are resolved by the last mentioned keyword taking precedence.
Many of the concepts used here are explained in the methods chapter (Chapter 3) of the LANCELOT book ( Conn, Gould and Toint, 1992), where detailed references are given.