Parallel Python

[parallelpython]

Does anybody have any experience with parallel python?
Recently I've made Parallel Python for SMP
I would appreciate any comments/suggestions regarding it.
Thank you!

[Leonidas]

Hi parallelpython, welcome in the forum!

Is it your project? There are examples but I don't see any documentation how it works under the hood.

Anyway, testing for type in the isPrime example is not considered good style.

[sape]

[...]
Anyway, testing for type in the isPrime example is not considered good style.

Yes ^^

isinstance(n, int):

Code: Alles auswählen

def isPrime(n):
    """Returns True if n is prime and False otherwise"""
    if not isinstance(n, int) or n < 2:
        return False
    elif n == 2:
        return True
    max = int(math.ceil(math.sqrt(n)))
    i = 2
    while i <= max:
        if n % i == 0:
            return False
        i += 1
    return True

Much better:

Code: Alles auswählen

def isPrime(n):
    if not isinstance(n, int):
        raise TypeError("n is not from data type int or long")

    if n < 2:
        return False
# etc.

BTW: The name of the function is not conform with the PEP8 Style Guide. ``is_prime`` ist better as ``isPrime``

lg

P.S.: Sorry for my very bad english.

[parallelpython]

Hi parallelpython, welcome in the forum!

Is it your project?

Hi Leonidas,
Yes, it is my project.

There are examples but I don't see any documentation how it works under the hood.

In short, it creates worker processes which may run on different cpus/cores.
These processes execute jobs in parallel.

[parallelpython]

Much better:

Code: Alles auswählen

def isPrime(n):
    if not isinstance(n, int):
        raise TypeError("n is not from data type int or long")

BTW: The name of the function is not conform with the PEP8 Style Guide. ``is_prime`` ist better as ``isPrime``

Thank you for the feedback!
I've changed the examples section.
I guess isprime will be even better here (analogous to isinstance)