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Old 2020-09-12, 11:42   #4
swellman's Avatar
Jun 2012

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Default msieve -h

Msieve v. 1.52 (SVN 945)

usage: msieve [options] [one_number]

numbers starting with '0' are treated as octal,
numbers starting with '0x' are treated as hexadecimal

   -s <name> save intermediate results to <name>
             instead of the default msieve.dat
   -l <name> append log information to <name>
             instead of the default msieve.log
   -i <name> read one or more integers to factor from
             <name> (default worktodo.ini) instead of
             from the command line
   -m        manual mode: enter numbers via standard input
   -q        quiet: do not generate any log information,
             only print any factors found
   -d <min>  deadline: if still sieving after <min>
             minutes, shut down gracefully (default off)
   -r <num>  stop sieving after finding <num> relations
   -p        run at idle priority
   -v        verbose: write log information to screen
             as well as to logfile
   -t <num>  use at most <num> threads

 elliptic curve options:
   -e        perform 'deep' ECM, seek factors > 15 digits

 quadratic sieve options:
   -c        client: only perform sieving

 number field sieve options:

           [nfs_phase] "arguments"

 where the first part is one or more of:
   -n        use the number field sieve (80+ digits only;
             performs all NFS tasks in order)
   -nf <name> read from / write to NFS factor base file
             <name> instead of the default msieve.fb
   -np       perform only NFS polynomial selection
   -np1      perform stage 1 of NFS polynomial selection
   -nps      perform NFS polynomial size optimization
   -npr      perform NFS polynomial root optimization
   -ns       perform only NFS sieving
   -nc       perform only NFS combining (all phases)
   -nc1      perform only NFS filtering
   -nc2      perform only NFS linear algebra
   -ncr      perform only NFS linear algebra, restarting
             from a previous checkpoint
   -nc3      perform only NFS square root

 the arguments are a space-delimited list of:
 polynomial selection options:
   polydegree=X    select polynomials with degree X
   min_coeff=X     minimum leading coefficient to search
                   in stage 1
   max_coeff=X     maximum leading coefficient to search
                   in stage 1
   stage1_norm=X   the maximum norm value for stage 1
   stage2_norm=X   the maximum norm value for stage 2
   min_evalue=X    the minimum score of saved polyomials
   poly_deadline=X stop searching after X seconds (0 means
                   search forever)
   X,Y             same as 'min_coeff=X max_coeff=Y'
 line sieving options:
   X,Y             handle sieve lines X to Y inclusive
 filtering options:
   filter_mem_mb=X  try to limit filtering memory use to
                    X megabytes
   filter_maxrels=X limit the filtering to using the first
                    X relations in the data file
   filter_lpbound=X have filtering start by only looking
                    at ideals of size X or larger
   target_density=X attempt to produce a matrix with X
                    entries per column
   X,Y              same as 'filter_lpbound=X filter_maxrels=Y'
 linear algebra options:
   skip_matbuild=1  start the linear algebra but skip building
                    the matrix (assumes it is built already)
   la_block=X       use a block size of X (512<=X<=65536)
   la_superblock=X  use a superblock size of X
   cado_filter=1    assume filtering used the CADO-NFS suite
 square root options:
   dep_first=X start with dependency X, 1<=X<=64
   dep_last=Y  end with dependency Y, 1<=Y<=64
   X,Y         same as 'dep_first=X dep_last=Y'
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