https://gitlab.inria.fr/cado-nfs/cado-nfs
Tip revision: 24d2dc18e53205337a4bb9bc2dd1f9faa17798e3 authored by Lionel Muller on 07 October 2011, 09:58:47 UTC
bugfix check_rels with option -f (not use in cadofactor)
bugfix check_rels with option -f (not use in cadofactor)
Tip revision: 24d2dc1
params.c97
###########################################################################
# Parameter file for Cado-NFS
###########################################################################
# See params/params.c91 for an example which contains some documentation.
# Anything after a # is a comment, until end of line.
# Any empty line is ignored
#
#
# Each parameter should be on an individual line, like
# param0=42.17
#
###########################################################################
# General parameters
###########################################################################
# Sample parameter file for a 97-digit gnfs input
# Example: cadofactor.pl wdir=... name=... n=...
name=c97
parallel=1 # do we use parallel computation?
delay=60 # time in seconds between two checks
machines=mach_desc # file describing available computers for parallel
# computation
###########################################################################
# Polynomial selection with Kleinjung's algorithm
###########################################################################
degree=4 # degree of the algebraic polynomial
kjdelay=60 # time between two checks
selectnice=4 # nice level for selection
# on the test number
# 3162277660168379331998893544432718533719555140056959748004286946962165015333668357350077955980039
# we get
# lognorm: 33.67, alpha: -4.35 E=29.32
# Murphy's E(Bf=10000000,Bg=5000000,area=1.00e+16)=1.64e-08
## Parameters of polyselect
kjP=20000 # choose lc(g) with two prime factors in [P,2P]
kjmaxnorm=34 # max. lognorm of polynomials (before rootsieve)
kjadmax=2e6 # max value for lc(f)
kjadrange=1e5 # individual tasks
kjkmax=20 # rotation is bounded by 2^kmax
kjincr=60 # forced divisor of lc(f)
###########################################################################
# Sieve
###########################################################################
# (r,a) means rational or algebraic side
# rlim/alim is the bound for sieving
# lpbr/lpba is the (base 2 log of the) large prime bound
# mfbr/mfba is the (base 2 log of the) limit for the cofactor we try to
# split into large primes.
# rlambda/alambda is the early-abort ratio: if after sieving the
# approximate norm is more than
# lambda times lpb, we reject.
rlim=500000
alim=1000000
lpbr=25
lpba=25
mfbr=50
mfba=50
rlambda=2.1
alambda=2.2
I=11 # Sieving range in lattice siever
qmin=1000000 # Start of the special-q range
qrange=20000 # The size of an elementary sieving task
firstcheck=2000000 # try filtering only up from that many relations
sievenice=10 # nice level for the sieving jobs
sieve_max_threads=2
###########################################################################
# Filtering
###########################################################################
excessratio=1.01 # minimal excess we want before pruning
keeppurge=160 # maximal excess wanted after purge
# (purge shrinks if needed)
keep=160 # excess wanted after merge
maxlevel=15
cwmax=100
rwmax=100
ratio=1.1
bwstrat=3
###########################################################################
# Linear algebra
###########################################################################
bwmt=2x2 # Multithreading level of Block-Wiedemann ; Use
# <m>x<n> for bwc, or only one integer for bw.
# Note that this will be substituted with 1x1
# unless PTHREADS have been enabled.
bwc_interval=100 # checkpointing interval for bwc.
###########################################################################
# Characters
###########################################################################
nkermax=30 # maximal size of computed kernel
nchar=50 # number of characters