mlucas

Mlucas 14.2

mlucas is an open-source (and free/libre) program
for performing Lucas-Lehmer test on prime-exponent Mersenne numbers,
that is, integers of the form 2 ^ p - 1, with prime exponent p.
In short, everything you need to search for world-record Mersenne primes!
It has been used in the verification of various Mersenne primes,
including the 45th, 46th and 48th found Mersenne prime.

You may use it to test any suitable number as you wish,
but it is preferable that you do so in a coordinated fashion,
as part of the Great Internet Mersenne Prime Search (GIMPS).
For more information on GIMPS,
see for details.

Menu:
Installation
Usage
News
Licensing
Bugs
Copyright

Installation:
Generic installation guide can be found in INSTALL.

Basically, the 5 steps
1. $ mkdir build && cd build
2. $ ../configure
3. $ make -j
or $ make
4. $ make check
5. $ make install
will complete the installation.

Normally, configure should guess your system configuration.
However, you can always override it by passing flags to configure.

Running test in step 4 is optional.
Run it if you want to be safe or have passed flags to configure.

Below is a summary of the custom options understood by configure.
You can read all options by running `$ ../configure -h' in step 2

Custom Options:
(please note that all options mentioned below does NOT override one another)

--enable-NORMAL-CFLAGS='FOO' or --disable-NORMAL-CFLAGS
set CFLAGS for normal source files to FOO or nothing
['-Os']
--enable-TRICKY-CFLAGS='FOO' or --disable-TRICKY-CFLAGS
set CFLAGS for optimization-sensitive source files
to FOO or nothing ['-O1']
CFLAGS='FOO' set CFLAGS for all source files to FOO ['']
CPPFLAGS='FOO' set CPPFLAGS for all source files to FOO ['']
LDFLAGS='FOO' set LDFLAGS for all linking to FOO ['']
--host='FOO' skip autodetection and force detecting host as FOO
(set --host=none to disable host-specific
compilation flags)
--enable-instruction=[SSE2|AVX|AVX2] or --disable-instruction
build with SSE2, AVX, AVX2 or without extended
instruction set
--disable-threads force building without multithread-support
--enable-MLUCAS-DEFAULT-PATH
set MLUCAS_DEFAULT_PATH (unset by default) to
"$HOME/.mlucas.d/"
--disable-silent-rules increase make verbosity
--enable-verbose-compiler
enable verbose compiler

End of Custom Options

Usage:
For local documentation, please refer to html/README.html
For online documentation, please refer to
http://hogranch.com/mayer/README.html
To show the help menu of Mlucas, enter
$ /mlucas -h
After installation, you can read the man page by
$ man mlucas

News:
To read news taken from html/README.html in plain text, see NEWS.

Licensing:
Most of the files are licensed under
the GNU General Public License version 2 or later.
Other files are under permissive licenses or in the public domain.
All files except empty files or generated data
should have a license header or footer.
If not, please send a bug report (see section Bugs for details).

See COPYING for details regarding licensing.

Bugs:
The argument parser is buggy. The relative position of arguments is
relevant to mlucas, the order of arguments in SYNOPSIS in mlucas(1)
should be followed to avoid confusing the parser.
Only 100, 1000 and 10000 are supported for -iters flag. However,
the parser will not reject unsupported arguments. Using
unsupported arguments for -iters flag may trigger strange behaviour.

For problems regarding the program mlucas, please contact the author
Ernst W. Mayer . For installation and documentation
related problems regarding this package and this README, please
contact Alex Vong .

See BUGS section in mlucas(1) for details.

Copyright:
README - readme for Mlucas
Copyright (C) 2015, 2017 Alex Vong

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.