2248.sagews

@parallel(2)
def f(n):
    return factorial(n).ndigits()

list(f([1,2,3,4]))

[(((2,), {}), 1), (((1,), {}), 1), (((3,), {}), 1), (((4,), {}), 2)]

def g2(n):
    return factorial(n).ndigits()

timeit('g2(100)')

625 loops, best of 3: 8.01 µs per loop

@fork(timeout=1)
def g(n):
    return factorial(n).ndigits()

g(100)

158

timeit('g(100)')

25 loops, best of 3: 29.6 ms per loop

g(10^5)

456574

g(10^7)

Killing subprocess 85847 with input ((10000000,), {}) which took too long 'NO DATA (timed out)'

g(10^5)

456574

@fork
def g(n):
    return factorial(n).ndigits()

g(10^5)

456574

@fork
def g(n):
    sys.exit(1)
    return factorial(n).ndigits()

g(100)

'NO DATA'

g(5)

'NO DATA'

%cython

def h():
    print <char*>0

@fork
def g(n):
    h()

a =5

g(100)

------------------------------------------------------------ Unhandled SIGSEGV: A segmentation fault occurred in Sage. This probably occurred because a *compiled* component of Sage has a bug in it (typically accessing invalid memory) or is not properly wrapped with _sig_on, _sig_off. You might want to run Sage under gdb with 'sage -gdb' to debug this. Sage will now terminate (sorry). ------------------------------------------------------------ 'NO DATA'

a

5

g(100)

------------------------------------------------------------ Unhandled SIGSEGV: A segmentation fault occurred in Sage. This probably occurred because a *compiled* component of Sage has a bug in it (typically accessing invalid memory) or is not properly wrapped with _sig_on, _sig_off. You might want to run Sage under gdb with 'sage -gdb' to debug this. Sage will now terminate (sorry). ------------------------------------------------------------ 'NO DATA'