inserts comments in the input. It can also be used to inform the program
about the input filename, the computer system or the computer model
See also TITLE
WHAT(1) = number of comment cards following this control card
Default (WHAT(1) and WHAT(2) =< 0 and SDUM = blank): 1 comment
card will follow
WHAT(2) = computer system (see Note 2 below).
1 = VAX-VMS
2 = IBM-VM (CMS) (not supported any longer)
3 = IBM-MVS (not supported)
4 = CRAY (not supported)
5 = UNIX (IBM AIX) (not supported any longer)
6 = UNIX (HP-UX)
7 = UNIX (SUN)
8 = Digital UNIX
9 = LINUX (PC IBM compatible)
WHAT(3)-WHAT(6): not used
SDUM = INPUT : next card must give the input filename, without
extension/filetype. An extension .inp is assumed for most
systems (but for VAX this option is useless)
= MODEL : next card must give the computer model (not used on VAX,
where the model is established directly by FLUKA)
Default = blank (next card is just an ordinary comment)
If SDUM = INPUT is not given, the input file name is assumed to be
"fluka"
If SDUM = MODEL is not given, the name of the model is left blank.
Default (option COMMENT not requested): no comment
Notes:
1) An alternative way to insert comments, valid also for Combinatorial
Geometry input (see 8}) is to start input cards with a * character.
Each line having a * in column 1 is treated as a comment and ignored
(but printed on output). Short comments can also be given at the end
of any option card, preceded by an exclamation mark. Any character
after the character ! will be ignored (this facility is mainly used
with free-form input).
2) The information about the computer system, needed by the code in
order to carry out a few platform-dependent tasks, is generally
hard-wired by initialisation of variable KOMPUT in block data
BDINPT. However, WHAT(2) allows to override such information in case
of need, but the corresponding COMMENT card must be issued early in
input, in particular before any OPEN command. At present, only
WHAT(2) = 1,6,7,8 and 9 are supported.
3) Information about the computer model, if available, is printed in
the main output together with the CPU time used, and may be useful
in order to compare similar runs carried out on different machines.
4) Information about the name of the input file is used to generate the
name of a file which stops the program (see note in START). On UNIX,
if the input file is called xxx.inp, the stopping file must be
called xxx.stop (fluka.stop if the information is not provided).
On VAX, however, the name of the stopping file is always FLUKA$STOP.
5) COMMENT cards with SDUM = INPUT or MODEL, generated by a script
(command file), may be used for those systems where the
corresponding information can be accessed by a script but not
directly by a Fortran program.
Example:
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+...
COMMENT 3.0
This comment is made of three lines. This is the first line
and this is the second one
and here is the third.
COMMENT
This is a comment consisting of a single line, equivalent to:
* This is a comment consisting of a single line
* The following cards indicate that the run, based on input file myshower.inp,
* is executed on a Pentium-4 computer at 2.4 GHz
COMMENT 0. 5. MODEL
Pentium4 2.4 GHz
COMMENT 0. INPUT
myshower
