/usr/share/doc/pythia8-doc/html/RandomNumberSeed.html is in pythia8-doc-html 8.1.86-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | <html>
<head>
<title>Random-Number Seed</title>
<link rel="stylesheet" type="text/css" href="pythia.css"/>
<link rel="shortcut icon" href="pythia32.gif"/>
</head>
<body>
<h2>Random-Number Seed</h2>
The seed of the random number generator can be set as follows:
<p/><code>flag </code><strong> Random:setSeed </strong>
(<code>default = <strong>off</strong></code>)<br/>
Indicates whether a user-set seed should be used every time the
<code>Pythia::init</code> routine is called. If off, the random number
generator is initialized with its default seed at the beginning
of the run, and never again. If on, each new <code>Pythia::init</code>
call (should several be made in the same run) results in the random
number being re-initialized, thereby possibly starting over with the
same sequence, if you do not watch out.
<p/><code>mode </code><strong> Random:seed </strong>
(<code>default = <strong>-1</strong></code>; <code>maximum = 900000000</code>)<br/>
The seed to be used, if <code>setSeed</code> is on.<br/>
A negative value gives the default seed,<br/>
a value 0 gives a random seed based on the time, and<br/>
a value between 1 and 900,000,000 a unique different random number
sequence.
<p/>
For more on random numbers see <a href="RandomNumbers.html" target="page">here</a>.
This includes methods to save and restore the state of the generator,
and some preprogrammed methods to generate non-uniform random numbers.
</body>
</html>
<!-- Copyright (C) 2014 Torbjorn Sjostrand -->
|