[Insight-developers] Infinite loops
Blezek, Daniel J (CRD)
blezek@crd.ge.com
Mon, 23 Apr 2001 13:26:36 -0400
Lidia,
Here is the testing checkout log. Looks like you had the last checkin on the 17th. The problem is
that the clean process is not cleaning up .o's and executables. I'm looking into this today. So
since the clean is not taking effect, old versions of the code are being run nightly.
Hopefully updates coming soon,
-dan
{pragmatic:Algorithms}1023:cvs log
itkImageToImageAffineMutualInformationGradientDescentRegistrationTest.cxx
RCS file:
/insight/cvsroot/Insight/Testing/Code/Algorithms/itkImageToImageAffineMutualInformationGradientDescen
tRegistrationTest.cxx,v
Working file: itkImageToImageAffineMutualInformationGradientDescentRegistrationTest.cxx
head: 1.5
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 5; selected revisions: 5
description:
----------------------------
revision 1.5
date: 2001/04/17 16:15:17; author: lng; state: Exp; lines: +16 -2
ENH: printout more info as to why a test failed
----------------------------
revision 1.4
date: 2001/04/17 13:03:08; author: ibanez; state: Exp; lines: +3 -3
ENH: Number of iterations raised to 1000
----------------------------
revision 1.3
date: 2001/04/16 16:03:57; author: lng; state: Exp; lines: +4 -4
FIX: make success range larger to allow test to pass for all platforms
----------------------------
revision 1.2
date: 2001/04/12 17:38:01; author: lng; state: Exp; lines: +4 -4
FIX: increase number of iterations to allow SunOS and IRIX precision to meet the convergence criteria
----------------------------
revision 1.1
date: 2001/04/12 02:01:20; author: lng; state: Exp;
ENH: added GradientDescent to the registrator name to make it consistent
with all the other registrators
=============================================================================
{pragmatic:Algorithms}1024:
-----Original Message-----
From: Lydia Ng [mailto:lng@insightful.com]
Sent: Monday, April 23, 2001 12:58 PM
To: luis.ibanez@ieee.org; Blezek, Daniel J (CRD)
Cc: insight-developers@public.kitware.com
Subject: RE: [Insight-developers] Infinite loops
Hi Dan,
Linux-2.2.14-5.0smp-c++
is definitely running an old version of my
itkImageToImageAffineMutualInformationGradientDescentRegistrationTest
I added some printout statements about 7 days ago,
but they haven't appear in the output.
Lydia
> -----Original Message-----
> From: insight-developers-admin@public.kitware.com
> [mailto:insight-developers-admin@public.kitware.com]On Behalf Of Luis
> Ibanez
> Sent: Monday, April 23, 2001 7:28 AM
> To: Daniel J. Blezek, Ph.D.
> Cc: luis.ibanez@ieee.org; insight-developers@public.kitware.com
> Subject: Re: [Insight-developers] Infinite loops
>
>
> Daniel,
>
>
> I don't have access right now to a Linux machine, so
> I'm trying to identify the problem directly from the
> code and the outputs on the dashboard. However, something
> seems to be wrong among the outputs reported on the dashboard:
>
> When you killed the tests, where they still printing output ?
>
> This is for this morning for
> itkImageToImageTranslationMeanSquaresGradientDescent
>
> Iterations Answer(should be -7,-3) Final Message
>
> Irix: 200 -6.99351 -2.99616 Test passed
>
>
> Intel C++ 200 -6.99351 -2.99616 Test Passed
>
>
> Linux 2.4.0 GetValue() messages are present (as expected)
> 200 -6.99351 -2.99616 Test Passed
> But... a segmentation violation is reported at the end.
>
>
> Linux 2.2.14 the GetValue() messages are missing(!), the number of
> iterations
> is not being printed, the reported solution is
> -7.15854 -3.00822
> and a segmentation violation is reported.
> This definitely looks like an older version of the test.
> It seems that the update from the repository have some
> problem... (?)
>
> SunOS 5.7 Very similar to Linux 2.2.14. Messages added
> recently are
> missing.
> The reported output is:
> -7.1584 -3.00822
> and a segmentation violation is reported.
>
>
>
> The tests are explicitly limited to 200 iterations, they shouldn't be
> going in infinite loops. One possible source of error is that inside
> the Mapper we are using exceptions to report when a point is outside
> the range of the target image, the number of these exceptions can be
> quite large (as high as the number of pixels in the image), and it is
> not clear how each compiler manage this high flow of exceptions. I'd
> notice that in VC++ the debuger is overloaded a cause of the
> high number
> of exceptions. My guess is that the gcc compiler expects
> exceptions to
> be an not so common event (this code could be throwing about
> 2000 of the
> in each iterations). In that case we should replace the code:
>
>
> try {
> value = mapper.GetValue( point );
> }
> catch()
> {
> value = 0;
> }
>
>
>
> for a "contract" style code with a preconditions like:
>
>
> if( mapper.IsPointInside( point ) )
> {
> value = mapper.GetValue();
> }
> else
> {
> value = 0;
> }
>
>
>
> I'll remove those test until I can try them on a Linux machine.
>
>
> Thanks
>
>
> Luis
>
> -------------------------------------------
>
> "Daniel J. Blezek, Ph.D." wrote:
> >
> > Luis,
> >
> > When I came in this morning, I killed these jobs which
> had been running
> > since Saturday morning. Do you have access to a Linux
> machine to do some
> > testing? Oddly enough, it only seems to be affecting my RedHat 6.2
> > machine, not the RedHat 7.0 machine. Could be a compiler
> difference.
> >
> > -dan
> >
> > >
> > > "Blezek, Daniel J (CRD)" wrote:
> > > >
> > > > Hi all,
> > > >
> > > > I've had to regularly kill the following tests on Linux
> > > >
> > > >
> ./itkImageToImageTranslationNormalizedCorrelationGradientDesce
> ntRegistrationTest
> > > >
> ./itkImageToImageTranslationMeanSquaresRegularStepGradientDesc
> entRegistrationTest
> > > >
> > > > Any ideas where the code may be having a problem?
> > > >
> > > > -dan
> > > >
>
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