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Re: memory control in Python

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  Re: memory control in Python Laura Creighton <lac@openend.se> - 2015-08-15 20:55 +0200
    Re: memory control in Python Ping Liu <yanzhipingliu@gmail.com> - 2015-08-17 11:40 -0700
      Re: memory control in Python Laura Creighton <lac@openend.se> - 2015-08-17 20:52 +0200

#95397 — Re: memory control in Python

If the problem is that Python is using too much memory, then PyPy may
be able to help you.  PyPy is an alternative implementation of Python,
and by defaiult uses a minimark garbage collector.
https://pypy.readthedocs.org/en/release-2.4.x/garbage_collection.html

You will have to write your own bindings for the CPLEX C library, though,
using cffi. http://cffi.readthedocs.org/en/latest/overview.html  (since
the bindings you have assume the CPython ref counting gc).

But if your C program is itself using too much memory, then this probably
won't help.

Discuss this more on pypy-dev@python.org or the #pypy channel on freenode.
People on pypy-dev would appreciate not getting libreoffice spreadsheet
attachments but just the figures as plain text.

Laura

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#95443

On Saturday, August 15, 2015 at 11:56:22 AM UTC-7, Laura Creighton wrote:
> If the problem is that Python is using too much memory, then PyPy may
> be able to help you.  PyPy is an alternative implementation of Python,
> and by defaiult uses a minimark garbage collector.
> https://pypy.readthedocs.org/en/release-2.4.x/garbage_collection.html
> 
> You will have to write your own bindings for the CPLEX C library, though,
> using cffi. http://cffi.readthedocs.org/en/latest/overview.html  (since
> the bindings you have assume the CPython ref counting gc).
> 
> But if your C program is itself using too much memory, then this probably
> won't help.
> 
> Discuss this more on pypy-dev@python.org or the #pypy channel on freenode.
> People on pypy-dev would appreciate not getting libreoffice spreadsheet
> attachments but just the figures as plain text.
> 
> Laura

Hi, Laura, 
Thank you for the advice. I see that some people also mention that PyPy may save some speed and memory than CPython. But since I am working on an optimization problem, I wonder whether PyPy would support NumPy and Scipy. In which progress have this integration been done?

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#95444

In a message of Mon, 17 Aug 2015 11:40:32 -0700, Ping Liu writes:
>> Discuss this more on pypy-dev@python.org or the #pypy channel on freenode.
>> People on pypy-dev would appreciate not getting libreoffice spreadsheet
>> attachments but just the figures as plain text.
>> 
>> Laura
>
>Hi, Laura, 
>Thank you for the advice. I see that some people also mention that PyPy may save some speed and memory than CPython. But since I am working on an optimization problem, I wonder whether PyPy would support NumPy and Scipy. In which progress have this integration been done?
>-- 
>https://mail.python.org/mailman/listinfo/python-list

Significant progress has been made to support NumPy.   SciPy, no.
Ask on pypy-dev and/or freenode to find out if the NumPy features you
need are done yet.

Laura

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