Re: [Pysparse-users] ll_mat.__getitem__ still leaks lots of memory

[Rob S. <rspeer@MIT.EDU>]

I found the memory leak and fixed it. The index lists, irow and jcol,
were never being freed.

I've attached the patch, and I've also updated my version on PyPI
(csc-pysparse 1.1.1.3).

-- Rob

On Mon, Apr 26, 2010 at 3:09 PM, Rob Speer <rs...@mi...> wrote:
> I saw that Łukasz Pankowski submitted a fix for a memory leak in
> ll_mat. I updated my copy of pysparse (from the new-setup-py branch),
> but I'm still getting a memory leak.
>
> Here's an easy way to reproduce it:
>
> from pysparse.sparse.spmatrix import ll_mat
> mat = ll_mat(1000,1000)
> mat[0,0] = 1
> for i in xrange(100000): m = mat[0,:]
> for i in xrange(100000): m = mat[0,:]
> ...
>
> If I repeat that last line indefinitely, I lose about 400 MB of memory
> each time.
>
> -- Rob
>