[ADOL-C] Seg fault

[Kshitij Kulshreshtha]

Hello

As on 2010-08-16 18:13, Rishi Amrit did write:
> Hi,
> 
>    I am using ADOL-C to compute the gradient of a function. Once the
> tape is read, I get the following tapestats:
> c0: 700 
> c1: 1 
> c2: 2728 
> c3: 0 
> c4: 65536 
> 
> Then I call the gradient driver to compute the gradient, and then when I
> read tapestats again, I get:
> 
> c0: 700 
> c1: 1 
> c2: 2728 
> c3: 4191 
> c4: 65536 
> 
> I see that the size of value stack changed from 0 to 4191. After a
> couple more gradient calls, I get a segmentation fault in the gradient
> call. Any ideas on what might be happening ?


This looks like a strange memory leak. Could you try running your
program under Valgrind and look at the report it generates? Also if you
can send a stripped out version of your program just to create the tape
and repeatedly call gradient and read tapestats after each time, it may
help me debug.

Regards.
-- 
Kshitij Kulshreshtha

Institut für Mathematik,
Universität Paderborn,
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