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Forums >> Revit Systems >> Technical Support >> topo surface causing slow performance
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Joined: Fri, Oct 17, 2008
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I am working on a project where I'm building a relativley large site by using the toposurface command. As I add subregions to the toposurface however the program seems to grow increasingly slow. By this I mean that the creating or editing of a subregion takes about 10 minuts to get into and out of sketch mode. I am using a very high powered pentium 4 machine and cannot understand why regenerating would take so long. I know that it is the large topo surface that it is having a problem with but is there anything I can do to speed up the regeneration process? Is splitting the surface into different pieces the only way to solve this problem?
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Joined: Tue, May 22, 2007
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How large are your Project (in MB)? what caracteristics of your computer, Ram, O.S. (32 or 64 bits), Revit Version???
Edited on: Fri, Oct 17, 2008 at 10:27:32 AM
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The Sspecs. on my computer are attached and the file size of the revit drawing is 71 MB.
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revit 2009
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Joined: Tue, May 22, 2007
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Well, you have a Pentium III Xeon with 3.2Gb of Ram working in XP SP2 and your file has 71MB, it start to be a BIG file, make a BACKUP and "Purge" that file what don't you need, also "Close Unused Windows" in the TOP "Windows" menu....
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Joined: Tue, Jan 16, 2007
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thats a decent machine, i wouldnt consider it high power but god enough for some terrain mapping. What is the precision of your surface? anything over a dozen acres I only use major contours, anything over 150 acres I break up into segments.
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The site is 233 acres and has a 500' change is elevation. My topo lines are placed at intervals of 2'. Is that too detailed? An image is attached.
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Joined: Tue, May 22, 2007
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Well, it's a BIG surface....
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I Hope and I Wish to LEARN more, and more, and more.... REVIT |
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yeah thats pretty good size, i would simply the surface to a precison of 5' to 10' Other than that your best bet is to go 64bit OS with 64bit Revit.
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Joined: Tue, May 22, 2007
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and put RAM on that... (i think i gonna to a Workstation RISC 2xQuadCore2 64GB RAM
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Reviving an old thread here. I'm also finding huge slow-downs with editing the topo ...we're modeling a HUGE chunk of town to show the extents of a university's land holdings, roughly 4 square miles of very low detail topo, with some regions of highly surveyed data.. currently it's one topo surface with many subregions, so I understand why it's slow, for sure. I was considering splitting it to make edits easier, but now I'm not sure because of this problem: I can't make new topo regions without experiencing the same ammount of delay. I've turned off everything in VG except one 2-D cad drawing, and closed all but one siteplan view that's heavily cropped. But still--at least two minutes to edit a NEW surface, 1 minute lag for each point placed or altered. I cannot explain this delay, since it's disassociated from the bulk of the project. File size is still just 30-40 megs. I'm running win 7 64bit on a machine with 16 gigs ram and 8 cores, it chews through anything else. Anyone have any experience withthis sort of scale, or this sort of slowdown?
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