<div>Hi Burlen:</div>
<div> </div>
<div> Have you tried the RK-45 integrator? It uses an adaptive step size and hence in many cases makes streamline integration faster than the other two modes (RK-2 and RK-4)? I agree with John in that the low performance exhibited to us might be caused by 'other' (data-depenent) components than the inherent integration part itself, e.g., point location and cell location in an unstructured grid (which are cetainly also related to streamline integration).</div>
<div> </div>
<div> Thanks.</div>
<div> </div>
<div> -Zhanping<br><br></div>
<div class="gmail_quote">On Mon, Aug 24, 2009 at 7:58 PM, burlen <span dir="ltr"><<a href="mailto:burlen.loring@gmail.com">burlen.loring@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">We've been using the distributed stream tracer to generate 100s-1000s of stream lines per time step. It's very slow, and it doesn't scale at all. The class comments say as much. I'm sure there is a reason why this implementation was chosen. Is there something that generally prevents real parallel implementation? Is there a better implementation available out there?<br>
<br>There is this post a while back<br><a href="http://www.paraview.org/pipermail/paraview/2009-July/012959.html" target="_blank">http://www.paraview.org/pipermail/paraview/2009-July/012959.html</a><br><br>What's the status?<br>
<br>Thanks<br>Burlen<br><br><br><br><br><br><br><br>_______________________________________________<br>Powered by <a href="http://www.kitware.com/" target="_blank">www.kitware.com</a><br><br>Visit other Kitware open-source projects at <a href="http://www.kitware.com/opensource/opensource.html" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>
<br>Please keep messages on-topic and check the ParaView Wiki at: <a href="http://paraview.org/Wiki/ParaView" target="_blank">http://paraview.org/Wiki/ParaView</a><br><br>Follow this link to subscribe/unsubscribe:<br><a href="http://www.paraview.org/mailman/listinfo/paraview" target="_blank">http://www.paraview.org/mailman/listinfo/paraview</a><br>
</blockquote></div><br><br clear="all">
<div></div><br>-- <br>Zhanping Liu, PhD<br>Kitware, Inc.<br>28 Corporate Drive<br>Clifton Park, NY 12065-8662<br>Phone: 518-371-3971 x 138<br><a href="http://www.zhanpingliu.org">http://www.zhanpingliu.org</a><br>