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<p class="MsoNormal"><span lang="DE-CH">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-CH"><o:p> </o:p></span></p>
<p class="MsoNormal">I am trying to use Python to extract all of the files in a pvd file with the Extract Block filter. This loop takes too much time (over a minute) for pvd files containing more than about 100 entries, and is unusable for any pvd files that
are much bigger. I have run out of ideas to speed it up, and I don’t know if there is a memory leak or other problem with my code, or if this is just a side effect of dealing with such large pvd files. Any help fixing or avoiding this problem would be greatly
appreciated.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here is the relevant code<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> inputFile = open(pvdFilePath)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> lines = inputFile.readlines()<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> pm = servermanager.ProxyManager()<o:p></o:p></p>
<p class="MsoNormal"> view = GetRenderView()<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> i = 2 # Block Indices in PVDReader object begin at 2 and are incremented by 2.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> for line in lines:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> words = line.split(" ")<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> if words[0] == "<DataSet": # Indicates this line references a .vtu file<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> name = words[1].split("\"")[1] # e.g. Returns 'NAME' from 'group="NAME"'<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> SetActiveSource(source)
<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> ex = ExtractBlock()
<o:p></o:p></p>
<p class="MsoNormal"> ex.BlockIndices = [i]<o:p></o:p></p>
<p class="MsoNormal"> i += 2<o:p></o:p></p>
<p class="MsoNormal">
<o:p></o:p></p>
<p class="MsoNormal"> rep = servermanager.CreateRepresentation(ex, view)<o:p></o:p></p>
<p class="MsoNormal"> pm.RegisterProxy("representations",name,rep)
<o:p></o:p></p>
<p class="MsoNormal">
<o:p></o:p></p>
<p class="MsoNormal"> RenameSource(name, ex)
<o:p></o:p></p>
<p class="MsoNormal">
<o:p></o:p></p>
<p class="MsoNormal"> del ex<o:p></o:p></p>
<p class="MsoNormal"> del rep<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best Regards,<o:p></o:p></p>
<p class="MsoNormal">Matthew Jackson<o:p></o:p></p>
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