Re: possible memory leak in vintrp?

Hi Rodrigo,

Thanks for the heads up on f2py.

It's possible, actually, that f2py was used for this function. I need
to do some research and find out. This is pretty high on my list of
things to work on.

--Mary

On Tue, 8 Sep 2009, Rodrigo Caballero wrote:

> Hi Mary,
>
> I would suggest using f2py (part of the numpy/scipy distribution) for
> wrapping fortran, works very well in my experience
>
> Rodrigo
>
> On 8 Sep 2009, at 13:29, Mary Haley wrote:
>
>> Hi Jim,
>>
>> It's been on our list to look into this memory leak, which was
>> reported before.
>>
>> I believe the problem is that "swig" was used to wrap the Fortran
>> code, and this code doesn't do any kind of memory management that I
>> can tell.
>>
>> I'll check with the original developer and see if I can get some
>> more information for a fix.
>>
>> --Mary
>>
>> On Fri, 4 Sep 2009, James Boyle wrote:
>>
>>> I am putting a lot of high frequency CAM hybrid data on pressure
>>> levels using Ngl.vinth2p.
>>> I have used this routine many times before.
>>> But this time , the number of calls per day exceeds 1500.
>>> One day goes OK, the data look reasonable but on the second day I get
>>> the error that is at the end of this message.
>>> It appears that Ngl has a memory leak that is exposed when the
>>> routine
>>> is called this many times.
>>>
>>> I am on OS X 10.5.8, using pyngl 1.3.0b1, python 2.6.1, numpy 1.3.
>>>
>>> python(98559) malloc: *** mmap(size=36864) failed (error code=12)
>>> *** error: can't allocate region
>>> *** set a breakpoint in malloc_error_break to debug
>>> Bus error
>>>
>>> --Jim Boyle
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Received on Tue Sep 08 2009 - 06:37:47 MDT