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<div>John,</div>
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<div>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.</div>
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<div>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.</div>
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<div>Attached is a patch that should fix the problem. Please apply it to reduce.c and let me know if it resolves the problem.</div>
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<div>-Ken</div>
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**** Kenneth Moreland<br>
*** Sandia National Laboratories<br>
*********** <br>
*** *** *** email: <a href="kmorel@sandia.gov">kmorel@sandia.gov</a><br>
** *** ** phone: (505) 844-8919<br>
*** web: <a href="http://www.cs.unm.edu/~kmorel">http://www.cs.unm.edu/~kmorel</a><br>
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<span style="font-weight:bold">From: </span>"Biddiscombe, John A." <<a href="mailto:biddisco@cscs.ch">biddisco@cscs.ch</a>><br>
<span style="font-weight:bold">Date: </span>Thu, 16 Jun 2011 18:39:51 +0000<br>
<span style="font-weight:bold">To: </span>"<a href="mailto:paraview@paraview.org">paraview@paraview.org</a>" <<a href="mailto:paraview@paraview.org">paraview@paraview.org</a>><br>
<span style="font-weight:bold">Subject: </span>[Paraview] IceT problem<br>
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<p class="MsoNormal">When running in parallel on windows, I get this (frequently)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I just closed the debugger and forgot to copy the stack trace, but can post it if it helps.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">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?<o:p></o:p></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size: 12pt; font-family: 'Courier New'; "><o:p> </o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size: 12pt; font-family: 'Courier New'; ">Line 109 of reduce.c<o:p></o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size: 12pt; font-family: 'Courier New'; ">
<span style="color:maroon">if</span> (<span style="color:green">icetIsEnabled</span>(<span style="color:green">ICET_COLLECT_IMAGES</span>)) {<o:p></o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size: 12pt; font-family: 'Courier New'; ">
<span style="color:green">result_image</span> = <span style="color:green">reduceCollect</span>(<span style="color:green">composited_image</span>,<o:p></o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size: 12pt; font-family: 'Courier New'; ">
<span style="color:green">compose_tile</span>,<o:p></o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size: 12pt; font-family: 'Courier New'; ">
<span style="color:green">piece_offset</span>);<o:p></o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size: 12pt; font-family: 'Courier New'; "><o:p> </o:p></span></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">JB<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><img width="483" height="289" id="Picture_x0020_1" src="cid:image001.png@01CC2C65.1005DB00"><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10.5pt; font-family: 'Courier New'; ">--
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10.5pt; font-family: 'Courier New'; ">John Biddiscombe, email:biddisco @ cscs.ch<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10.5pt; font-family: 'Courier New'; "><a href="http://www.cscs.ch/"><span style="color:blue">http://www.cscs.ch/</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10.5pt; font-family: 'Courier New'; ">CSCS, Swiss National Supercomputing Centre | Tel: +41 (91) 610.82.07<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size: 10.5pt; font-family: 'Courier New'; ">Via Cantonale, 6928 Manno, Switzerland | Fax: +41 (91) 610.82.82<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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