<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Wed, Jan 22, 2014 at 4:02 PM, Dharmendar Reddy <span dir="ltr"><<a href="mailto:dharmareddy84@gmail.com" target="_blank">dharmareddy84@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
The code works fine if i run with valgrind --leak-check=yes exename args<br>
it fails if i run valgrind exename args<br></blockquote><div><br></div><div>What is the error msg?</div><div> </div><div> Thanks,</div><div><br></div><div> Matt</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Any suggestions on what to look for my code?<br>
<br>
Thanks<br>
Reddy<br>
<br>
On Wed, Jan 22, 2014 at 3:31 PM, Dharmendar Reddy<br>
<<a href="mailto:dharmareddy84@gmail.com">dharmareddy84@gmail.com</a>> wrote:<br>
> Hello,<br>
> I tried using the SNESSetConvergenceTest in ex5f90.F using my<br>
> subroutine. Works as expected. I will try to run my code through<br>
> valgrind.<br>
><br>
> Thanks<br>
> Reddy<br>
><br>
> On Wed, Jan 22, 2014 at 2:33 PM, Dharmendar Reddy<br>
> <<a href="mailto:dharmareddy84@gmail.com">dharmareddy84@gmail.com</a>> wrote:<br>
>> Hello,<br>
>> I will also try to create a stand alone test case.<br>
>><br>
>> Thanks<br>
>> Reddy<br>
>><br>
>> On Wed, Jan 22, 2014 at 1:53 PM, Matthew Knepley <<a href="mailto:knepley@gmail.com">knepley@gmail.com</a>> wrote:<br>
>>> On Wed, Jan 22, 2014 at 1:52 PM, Barry Smith <<a href="mailto:bsmith@mcs.anl.gov">bsmith@mcs.anl.gov</a>> wrote:<br>
>>>><br>
>>>><br>
>>>> We need more information to track this down. Could you make a simple<br>
>>>> standalone code that reproduces the problem? Just creates a this, creates a<br>
>>>> SNES, sets the function, sets the test code and then crashes when runs.<br>
>>>><br>
>>>> But since it is not crashing in the SNESConvergenceTest_snes routine I<br>
>>>> suspect it may be memory corruption. Have you run your code under valgrind?<br>
>>>> <a href="http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind" target="_blank">http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind</a><br>
>>><br>
>>><br>
>>> I am putting his convergence test into ex5f right now. This can be<br>
>>> valgrinded. I will send an update when it runs.<br>
>>><br>
>>> Matt<br>
>>><br>
>>>><br>
>>>><br>
>>>> Barry<br>
>>>><br>
>>>> On Jan 20, 2014, at 7:14 PM, Dharmendar Reddy <<a href="mailto:dharmareddy84@gmail.com">dharmareddy84@gmail.com</a>><br>
>>>> wrote:<br>
>>>><br>
>>>> > Hello,<br>
>>>> > I am getting a segmentation fault when i use<br>
>>>> > SNESSetConvergenceTest from Fortran.<br>
>>>> ><br>
>>>> > I use the following:<br>
>>>> ><br>
>>>> > call SNESSetConvergenceTest(this%snes, SNESConvergenceTest_snes,<br>
>>>> > this,PETSC_NULL_FUNCTION, ierr) (Line 1)<br>
>>>> ><br>
>>>> > where the soubtoutine is<br>
>>>> ><br>
>>>> > subroutine<br>
>>>> > SNESConvergenceTest_snes(snes,it,xnorm,gnorm,fnorm,reason,this, ierr)<br>
>>>> > implicit none<br>
>>>> > #include "finclude/petsc.h"<br>
>>>> > ! IO Variables<br>
>>>> > SNES :: snes<br>
>>>> > integer :: it<br>
>>>> > PetscReal :: xnorm<br>
>>>> > PetscReal :: gnorm<br>
>>>> > PetscReal :: fnorm<br>
>>>> > SNESConvergedReason :: reason<br>
>>>> > type(Solver_t) :: this<br>
>>>> > PetscErrorCode :: ierr<br>
>>>> > ! Local Variables<br>
>>>> > Vec :: X, dX<br>
>>>> > Vec :: F, W, G<br>
>>>> > real(WP) :: lambda<br>
>>>> > print*, 'Calling custom test',it,xnorm,fnorm,gnorm<br>
>>>> > !call SNESLineSearchGetLambda(this%linesearch, lambda, ierr)<br>
>>>> > !call SNESLineSearchGetVecs(this%linesearch, X, F, dX, W, G, ierr)<br>
>>>> > !call this%SNESConvergenceTest(it, fnorm, lambda, X, dX, reason, ierr)<br>
>>>> > reason = SNES_DIVERGED_FUNCTION_COUNT<br>
>>>> > end subroutine SNESConvergenceTest_snes<br>
>>>> ><br>
>>>> > Code works fine if the call at Line 1 is commented i.e, if i donot<br>
>>>> > set the convergencetest<br>
>>>> ><br>
>>>> > I have attached the stack trace when the code fails (traceFail.log)<br>
>>>> > and stack trace of the code which runs well (tracePass.log).<br>
>>>> ><br>
>>>> ><br>
>>>> ><br>
>>>> > Thanks<br>
>>>> > Reddy<br>
>>>> > <traceFail.log><tracePass.log><br>
>>>><br>
>>><br>
>>><br>
>>><br>
>>> --<br>
>>> What most experimenters take for granted before they begin their experiments<br>
>>> is infinitely more interesting than any results to which their experiments<br>
>>> lead.<br>
>>> -- Norbert Wiener<br>
>><br>
>><br>
>><br>
>> --<br>
>> -----------------------------------------------------<br>
>> Dharmendar Reddy Palle<br>
>> Graduate Student<br>
>> Microelectronics Research center,<br>
>> University of Texas at Austin,<br>
>> 10100 Burnet Road, Bldg. 160<br>
>> MER 2.608F, TX 78758-4445<br>
>> e-mail: <a href="mailto:dharmareddy84@gmail.com">dharmareddy84@gmail.com</a><br>
>> Phone: <a href="tel:%2B1-512-350-9082" value="+15123509082">+1-512-350-9082</a><br>
>> United States of America.<br>
>> Homepage: <a href="https://webspace.utexas.edu/~dpr342" target="_blank">https://webspace.utexas.edu/~dpr342</a><br>
><br>
><br>
<span class="HOEnZb"><font color="#888888">><br>
> --<br>
> -----------------------------------------------------<br>
> Dharmendar Reddy Palle<br>
> Graduate Student<br>
> Microelectronics Research center,<br>
> University of Texas at Austin,<br>
> 10100 Burnet Road, Bldg. 160<br>
> MER 2.608F, TX 78758-4445<br>
> e-mail: <a href="mailto:dharmareddy84@gmail.com">dharmareddy84@gmail.com</a><br>
> Phone: <a href="tel:%2B1-512-350-9082" value="+15123509082">+1-512-350-9082</a><br>
> United States of America.<br>
> Homepage: <a href="https://webspace.utexas.edu/~dpr342" target="_blank">https://webspace.utexas.edu/~dpr342</a><br>
<br>
<br>
<br>
--<br>
-----------------------------------------------------<br>
Dharmendar Reddy Palle<br>
Graduate Student<br>
Microelectronics Research center,<br>
University of Texas at Austin,<br>
10100 Burnet Road, Bldg. 160<br>
MER 2.608F, TX 78758-4445<br>
e-mail: <a href="mailto:dharmareddy84@gmail.com">dharmareddy84@gmail.com</a><br>
Phone: <a href="tel:%2B1-512-350-9082" value="+15123509082">+1-512-350-9082</a><br>
United States of America.<br>
Homepage: <a href="https://webspace.utexas.edu/~dpr342" target="_blank">https://webspace.utexas.edu/~dpr342</a><br>
</font></span></blockquote></div><br><br clear="all"><div><br></div>-- <br>What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>
-- Norbert Wiener
</div></div>