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Thread: Large Projects

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    Question Large Projects

    How have you dealt with large multi building projects? I am trying to get some feedback for improving performance on large projects. Both from a management stand point and a model standpoint. Please describe how you have set up your projects when dealing with multi buildings or very large projects. Worksets? Linked models? One BIG project? Separate Projects?

    Your feedback will be greatly appreciated.

    Thanks,

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    There are so many variables, that you're probably not going to get a "one size fits all" answer, which probably isn't even what you're after. You'll have to consider, among other things:

    - how similar the buildings are (whether they're identical or just use the same/similar language/parts)
    - how you want to document the buildings (modeled in one file, detailed/documented in another master file so that all sheets can be plotted at once)
    - how complex the buildings are (multiple high rises vs. multiple airport hangars)
    - how much of the project will be modeled in Revit (struture, MEP, civil, etc.)
    - how much of the Revit work will be done in house (just architectural vs. all disciplines)
    - phasing and coordination between buildings

    You'll have to consider each of those things (and many others that I'm sure I left out) in part and as a whole to develop the best strategy...for this project. And then do it again for the next multi-building project. And again...and again...

    Maybe if you could post the scope of the current project you're considering, we could all brainstorm the best approach...? Or are you just asking hypothetically?

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    Junior Member cblackford's Avatar
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    RAM... Lots and lots of RAM!

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    I am just asking hypothetically. I have worked on several larger (or at least they are large in my mind) and have done things differently with each of them. The more I knew about Revit the more I utilized it.

    I more than anything wanted to get the communalities feedback for new people using Revit. From my experience people have hesitated implementing Revit on BIG projects because they don't know Revit. Opening the discussion on this might help someone tackle that new big project with Revit.

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    Quote Originally Posted by cblackford View Post
    RAM... Lots and lots of RAM!
    We are utilizing cloud computing. RAM is not an issue.

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    Junior Member cblackford's Avatar
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    I guess it depends on the project. We also utilize cloud computing (private colud), and when we had 30 Revit users accessing 2 million sq. feet of project, we started pushing the limits of the RAM on our VM hosts and had to increase capacity.

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    Quote Originally Posted by cblackford View Post
    I guess it depends on the project. We also utilize cloud computing (private colud), and when we had 30 Revit users accessing 2 million sq. feet of project, we started pushing the limits of the RAM on our VM hosts and had to increase capacity.
    We would love to hear about how your office has Revit set up for that much SQ FT.

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    Junior Member cblackford's Avatar
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    Quote Originally Posted by Alex Cunningham View Post
    We would love to hear about how your office has Revit set up for that much SQ FT.
    This particular project is a series of 3 buildings (approx 1 M sq. ft. each) that we are doing a complete renovation of. Each building was broken into approx 8 architectural sector models with consultant info, civil, mep, structural etc linked in various Revit and autocad files. The most mature building at the moment is about 15-20 gb of total files all linked into one “overall composite”.

    When we initially started we had all of our internal Revit users and several consultants accessing the model from Virtual Machines (VMWare) It worked ok for a while, but we quickly hit the wall with regards to our VM hosts capacities shortly before we began work on the 2nd building. As you can imagine, panic quickly ensued because now instead of one person experiencing slowdowns when they left too many views open, didn’t selectively open worksets, etc, the whole team experienced sudden slowdowns.. and when I say slowdowns, I’m talking 20-30 minute STCs, opens, etc. But workflow changes alone were not going to fix the problem moving forward.

    We analyzed the cost to benefit ratio of increasing our VM capacity, vs. purchasing new workstations and the new workstations won out. So, we removed all of our internal users off of the VMs and left the consultants on the VMs. Our internal users are on i7 processors, Win 7, 16gb of RAM. Taking this substantial load off of the VM hosts has been very effective. Now we have consultants working in our office on all 3 buildings as well as externally all accessing the model by connecting to internal VMs.

    That’s just kind of a loose overview of the first few things that come to mind. There have been A LOT of lessons learned for us on this one. Were just now starting on the third buildning and it is benefiting greatly from the lessons learned on the first two.

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