Re: [Pysparse-developers] Fwd: ll_mat memory leak

[Dominique O. <dom...@gm...>]

Hi,

Thanks for the bug report. This has been fixed in the new-setup-py
branch. I encourage users to use that branch as it will become the
default as soon as I find the time to make the merge.

Cheers,
Dominique


On Wed, Aug 4, 2010 at 9:42 PM, Roman Geus <rom...@gm...> wrote:
> Hi
> I got this bug report (with proposed fix) from a pysparse user. It sounds
> like it concerns some of the newer code (which I'm unfamiliar with). Could
> you please take a look at it?
> Thanks,
> Roman
>
> Begin forwarded message:
>
> From: Andreea Georgiana Gane <and...@gm...>
> Date: July 26, 2010 9:17:36 PM GMT+02:00
> To: ro...@ge...
> Subject: ll_mat memory leak
>
> Hi,
> I have recently downloaded the latest version of pysparse (pysparse-1.1.1)
> and I want to report a memory leak in the ll_mat implementation.
> For the following code:
>         for i in range(nt):
>             # get max value and index on each row
>             row = relTT[i,:]
> the program crashed with MemoryError at about 13000th iteration (relTT was a
> ll_mat matrix of size 63751 x 63751).
> It seems the problem was in the getSubMatrix_FromList implementation, since
> when "we have a mixture of index sets", some indexes were created (irow,
> jcol) and the memory they occupied was never deallocated (lines 850-887 in
> the ll_mat.c file). Freeing the allocated index/indexes before each return
> of the function solved my problem.
> Best regards,
> Andreea
>
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-- 
Dominique