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amicable.sage: add --sequential option. 

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
This commit is contained in:
Daira Hopwood 2019-09-17 11:18:04 +01:00
parent 8bb34f96f2
commit a085850a2c
1 changed files with 5 additions and 7 deletions
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amicable.sage
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@ -5,9 +5,6 @@ from traceback import print_exc
from math import ceil
from itertools import combinations
#PROCESSES = 1
PROCESSES = None # auto-detect
# Let Ep/Fp : y^2 = x^3 + bp
# Let Eq/Fq : y^2 = x^3 + bq
@ -153,18 +150,19 @@ def format_weight(x, detail=True):
def main():
strategy = near_powerof2_order if "--nearpowerof2" in sys.argv[1:] else low_hamming_order
args = [arg for arg in sys.argv[1:] if not arg.startswith("--")]
args = sys.argv[1:]
strategy = near_powerof2_order if "--nearpowerof2" in args else low_hamming_order
processes = 1 if "--sequential" in args else cpu_count()
args = [arg for arg in args if not arg.startswith("--")]
if len(args) < 1:
print("Usage: sage amicable.sage [--nearpowerof2] <min-bitlength> [<min-2adicity> [<stretch]]\n")
print("Usage: sage amicable.sage [--sequential] [--nearpowerof2] <min-bitlength> [<min-2adicity> [<stretch]]\n")
return
L = int(args[0])
twoadicity = int(args[1]) if len(args) > 1 else DEFAULT_TWOADICITY
stretch = int(args[2]) if len(args) > 2 else DEFAULT_STRETCH
processes = PROCESSES or cpu_count()
print("Using %d processes." % (processes,))
pool = Pool(processes=processes)