[Paraview] IceT problem

[Moreland, Kenneth]

John,

Earlier this week I merged a change in ParaView that uses the latest (not yet released) version of IceT.  You have the dubious honor of reporting the first problem.

It appears that the MSVC debugger is checking to make sure variables are set before used as an argument to a function. (Cool feature.  I didn't know it did that.)  It looks like I violated that.  I am pretty sure this is benign; the state that leads to uninitialized variables should mean they won't be used in the function.  It's still bad and dangerous practice though, so thanks for pointing it out.

Attached is a patch that should fix the problem.  Please apply it to reduce.c and let me know if it resolves the problem.

-Ken

   ****      Kenneth Moreland
    ***      Sandia National Laboratories
***********
*** *** ***  email: kmorel at sandia.gov
**  ***  **  phone: (505) 844-8919
    ***      web:   http://www.cs.unm.edu/~kmorel

From: "Biddiscombe, John A." <biddisco at cscs.ch<mailto:biddisco at cscs.ch>>
Date: Thu, 16 Jun 2011 18:39:51 +0000
To: "paraview at paraview.org<mailto:paraview at paraview.org>" <paraview at paraview.org<mailto:paraview at paraview.org>>
Subject: [Paraview] IceT problem

When running in parallel on windows, I get this (frequently)

I just closed the debugger and forgot to copy the stack trace, but can post it if it helps.

Is it a known issue? (I’m using IceT master, head of current git from the paraview repo) – can I just set piece offset to the process rank?

Line 109 of reduce.c
    if (icetIsEnabled(ICET_COLLECT_IMAGES)) {
        result_image = reduceCollect(composited_image,
                                     compose_tile,
                                     piece_offset);



JB

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--
John Biddiscombe,                            email:biddisco @ cscs.ch
http://www.cscs.ch/
CSCS, Swiss National Supercomputing Centre  | Tel:  +41 (91) 610.82.07
Via Cantonale, 6928 Manno, Switzerland      | Fax:  +41 (91) 610.82.82

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