哪里有GGNFS/ecm  for windows的用法,看了置顶，下载了，三种啊，还有ECM里就有那个ECB，

也下了vcredist_x86.exe

http://gilchrist.ca/jeff/factoring/

C:\Documents and Settings\user\My Documents\ggnfs-0.77.1-20060513-win32-pentium
4 的目录

2010-06-03  18:31    <DIR>          .
2010-06-03  18:31    <DIR>          ..
2006-05-13  03:05           225,792 gnfs-lasieve4I12e.exe
2006-05-13  03:05           225,792 gnfs-lasieve4I13e.exe
2006-05-13  03:05           225,792 gnfs-lasieve4I14e.exe
2006-05-13  03:05           839,680 makefb.exe
2006-05-13  03:05         1,203,200 matbuild-tpie.exe
2006-05-13  03:05           872,448 matbuild.exe
2006-05-13  03:05           844,800 matsolve.exe
2006-05-13  03:05           141,312 pol51m0b.exe
2006-05-13  03:05           150,016 pol51m0n.exe
2006-05-13  03:05           111,616 pol51opt.exe
2006-05-13  03:05           889,344 polyselect.exe
2006-05-13  03:05           860,160 procrels.exe
2006-05-13  03:05           879,104 sieve.exe
2006-05-13  03:05           841,216 sqrt.exe
2010-06-03  18:31    <DIR>          vcredist_x86
2010-06-03  18:29         4,216,840 vcredist_x86.exe
              15 个文件     12,527,112 字节
               3 个目录 35,330,445,312 可用字节

C:\Documents and Settings\user\My Documents\ggnfs-0.77.1-20060513-win32-pentium4
>

C:\Documents and Settings\user\My Documents\ggnfs-0.77.1-20060513-win32-pentium4
>sieve.exe

__________________________________________________________
|         This is the sieve program for GGNFS.             |
| Version: 0.77.1-20060513-pentium4                        |
| This program is copyright 2004, Chris Monico, and subject|
| to the terms of the GNU General Public License version 2.|
|__________________________________________________________|
USAGE: sieve.exe [OPTIONS]
--help              : show this help and exit
-fb <filename>      : use factor base in file <filename>
-j  <filename>      : use job file <filename>

C:\Documents and Settings\user\My Documents\ggnfs-0.77.1-20060513-win32-pentium4
>makefb.exe
makefb.exe
[OPTIONS]
--help            : show this help and exit
-of <filename>    : save factor base to <filename>
-if <filename>    : read n, m, f from <filename>
-rl <limit>       : create a rational factor base upto <limit>
-al <limit>       : create an algebraic factor base with norms upto <limit>
  The next two options are for backward-compatibility:
-rs <size>        : create a rational factor base of size <size>
-as <size>        : create an algebraic factor base of size <size>
-mpr <long>       : max large rational prime for large-prime variation
-mpa <long>       : max large algebraic prime for large-prime variation
-lpbr <int>       : max bits in large rational prime.
-lpba <int>       : max bits in large algebraic prime.
-2p               : Upto 2 large rat. and algebraic primes (default is 1).
-3p               : Upto 3 large rat. and algebraic primes (default is 1).

C:\Documents and Settings\user\My Documents\ggnfs-0.77.1-20060513-win32-pentium4
>
================================

C:\Documents and Settings\user\My Documents>ecm
Invalid arguments. See ecm --help.

C:\Documents and Settings\user\My Documents>ecm --help
Usage: ecm [options] B1 [[B2min-]B2] < file

Parameters:
  B1           stage 1 bound
  B2           stage 2 bound (or interval B2min-B2max)

Options:
  -x0 x        use x as initial point
  -sigma s     use s as curve generator [ecm]
  -A a         use a as curve parameter [ecm]
  -k n         perform >= n steps in stage 2
  -power n     use x^n for Brent-Suyama's extension
  -dickson n   use n-th Dickson's polynomial for Brent-Suyama's extension
  -c n         perform n runs for each input
  -pm1         perform P-1 instead of ECM
  -pp1         perform P+1 instead of ECM
  -q           quiet mode
  -v           verbose mode
  -timestamp   print a time stamp with each number
  -mpzmod      use GMP's mpz_mod for modular reduction
  -modmuln     use Montgomery's MODMULN for modular reduction
  -redc        use Montgomery's REDC for modular reduction
  -nobase2     disable special base-2 code
  -base2 n     force base 2 mode with 2^n+1 (n>0) or 2^|n|-1 (n<0)
  -ntt         enable NTT convolution routines in stage 2
  -no-ntt      disable NTT convolution routines in stage 2
  -save file   save residues at end of stage 1 to file
  -savea file  like -save, appends to existing files
  -resume file resume residues from file, reads from stdin if file is "-"
  -chkpnt file save periodic checkpoints during stage 1 to file
  -primetest   perform a primality test on input
  -treefile f  store product tree of F in files f.0 f.1 ...
  -maxmem n    use at most n MB of memory in stage 2
  -stage1time n add n seconds to ECM stage 1 time (for expected time est.)
  -i n         increment B1 by this constant on each run
  -I f         auto-calculated increment for B1 multiplied by 'f' scale factor
  -inp file    Use file as input (instead of redirecting stdin)
  -b           Use breadth-first mode of file processing
  -d           Use depth-first mode of file processing (default)
  -one         Stop processing a candidate if a factor is found (looping mode)
  -n           run ecm in "nice" mode (below normal priority)
  -nn          run ecm in "very nice" mode (idle priority)
  -t n         Trial divide candidates before P-1, P+1 or ECM up to n
  -ve n        Verbosely show short (< n character) expressions on each loop
  -cofdec      Force cofactor output in decimal (even if expressions are used)
  -B2scale f   Multiplies the default B2 value by f
  -go val      Preload with group order val, which can be a simple expression,
               or can use N as a placeholder for the number being factored.
  -h, --help   Prints this help and exit.

C:\Documents and Settings\user\My Documents>

C:\Documents and Settings\user\My Documents 的目录

2004-01-02  01:03           730,624 ecb.exe
2004-01-02  01:03           730,624 ecb_1.exe
2009-04-26  05:48           508,928 ecm.exe
               3 个文件      1,970,176 字节
               0 个目录 35,325,861,888 可用字节

C:\Documents and Settings\user\My Documents>

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