In this document, a vertical bar `|' is used to indicate alternate
X|Y|Z means that the value
Z can be used.
Coordinates are given in the order
X, Y, Z and are separated by commas
or blanks. For 2-D simulations, only two coordinates are required and the
unused direction need not appear but may be entered for visual clarity. For 1-D
simulations, only the x-coordinate is used. In cylindrical geometry, these
stand for (
z), and in spherical geometry they represent (
Optionally, the user may use `R' in place of the symbol `X' and
`TH' in place of the symbol `Y' when cylindrical or spherical
geometry is being used, and `PHI' in place of `Z' in spherical
The units for length are dependent upon which system of units has been specified by the user (see section User Units). The units for rotational coordinates in cylindrical or spherical geometries are radians.
Input parameters for the simulation are governed through the input file.
In this manual, input file examples and references to input keywords and
the values which follow them appear in
typewriter font. When the
parameter values are alphanumeric symbols, they can be written either in
lowercase or uppercase characters, but the keywords (identifiers) themselves
are written only in lowercase. Values assigned to the parameters can
be of four types:
In the input examples, optional data are followed by an asterisk (
Keyboard input typed at command prompt is shown in this font.
The index also incorporates certain conventions. Concepts are shown in lower case. Commands are shown in the same fonts as within the document. Each index entry is followed by the section in which it is found.
We use the word "simulation" to refer to the entire process in the application of the LSP code to some physical model, whereas the word "run" usually refers to a single period of uninterupted calculation; that is, any simulation may require many runs, as determined by time restraints or processor availability on the computer system being used.
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