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[cgal-discuss] Re: huge difference between running normal_estimation on Mac and Windows
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- From: Yifei Li <>
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- Subject: [cgal-discuss] Re: huge difference between running normal_estimation on Mac and Windows
- Date: Sat, 27 Aug 2011 14:47:34 -0400
On Sat, Aug 27, 2011 at 11:26 AM, Yifei Li <> wrote:
Hi,I compiled and ran examples/Point_set_processing_3/normal_estimation.cpp on Mac and Windows respectively, using sphere_20k.xyz as input data.It ran very fast on Mac:Normal estimationOpen data/sphere_20k.xyz for reading...Reads file data/sphere_20k.xyz: 21000 points, 0.355177 secondsEstimates Normals Direction by Jet Fitting (k=18)...done: 2.02112 seconds, 2391 Mb allocatedOrients Normals with a Minimum Spanning Tree (k=18)...done: 0.596141 seconds, 2401 Mb allocatedWrite file test.pwnHowever, on Windows, it got stuck in normal orientation (I waited at least 10 mins):Normal estimationOpen ..\data\sphere_20k.xyz for reading...Reads file ..\data\sphere_20k.xyz: 21000 points, 1.078 secondsEstimates Normals Direction by Jet Fitting (k=18)...done: 15.313 seconds, 5 Mb allocatedOrients Normals with a Minimum Spanning Tree (k=18)...Any idea why there's such a huge difference?P.S., The Windows machines is a virtual machine with 2GB memory
FYI, the program finished successfully on a physical Windows 7 machine with 2GB memory, but it took about 5mins, which is still much longer than on Mac
Yifei
- [cgal-discuss] huge difference between running normal_estimation on Mac and Windows, Yifei Li, 08/27/2011
- [cgal-discuss] Re: huge difference between running normal_estimation on Mac and Windows, Yifei Li, 08/27/2011
- Re: [cgal-discuss] Re: huge difference between running normal_estimation on Mac and Windows, Laurent Saboret, 08/29/2011
- [cgal-discuss] Re: huge difference between running normal_estimation on Mac and Windows, Yifei Li, 08/27/2011
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