performance measurements
Each table row shows performance measurements for this Python 2 program with a particular command-line input value N.
| N | CPU secs | Elapsed secs | Memory KB | Code B | ≈ CPU Load |
|---|
Read the ↓ make, command line, and program output logs to see how this program was run.
Read pidigits benchmark to see what this program should do.
notes
pidigits Python 2 #3 program source code
# The Computer Language Benchmarks Game
# http://benchmarksgame.alioth.debian.org/
#
# contributed by anon
# modified by Pilho Kim (first GMP version)
# modified by 2to3 and Daniel Nanz
import sys
from itertools import islice
try:
from gmpy2 import mpz
except ImportError:
from gmpy_cffi import mpz
(MPZ0, MPZ1, MPZ2, MPZ3, MPZ4, MPZ10) = (mpz(i) for i in (0, 1, 2, 3, 4, 10))
def gen_x(zero=MPZ0, one=MPZ1, two=MPZ2, four=MPZ4):
a, b, d = zero, two, one
while True:
a += one
b += four
d += two
yield (a, b, zero, d)
def compose(q1, q2):
a, b, c, d = q1
e, f, g, h = q2
return (a * e, a * f + b * h, c * e + d * g, c * f + d * h)
def extract(q, j):
a, b, c, d = q
return (a * j + b) // (c * j + d)
def pi_digits(x=gen_x(), extr=extract, comp=compose, zero=MPZ0,
one=MPZ1, three=MPZ3, four=MPZ4, ten=MPZ10, mten=-MPZ10):
z = (one, zero, zero, one)
while True:
y = extr(z, three)
while y != extr(z, four):
z = comp(z, next(x))
y = extr(z, three)
z = comp((ten, mten * y, zero, one), z)
yield str(y)
def main(n, digits=pi_digits(), width=10, line='{}\t:{}'):
for i in range(width, n+1, width):
print(line.format(''.join(islice(digits, width)), i))
if n % width > 0:
print(line.format(''.join(islice(digits, n % width)).ljust(width), n))
main(int(sys.argv[1]))
make, command-line, and program output logs
Fri, 30 Oct 2020 20:17:26 GMT
COMMAND LINE:
/usr/bin/python2 pidigits.python-3.python 10000
PROGRAM FAILED
PROGRAM OUTPUT:
Traceback (most recent call last):
File "pidigits.python-3.python", line 13, in <module>
from gmpy_cffi import mpz
ImportError: No module named gmpy_cffi