Re: [VBox-users] practical use of second video card/GPU with PCI passthrough

2015-07-28 Thread Stephan Hockley 
Daniel,

I just encountered a similar problem running Carlson Survey with an embeded 
Intellicad 7.2 engine.  In short, based on me calling Carlson, I entered  the 
following command:  hwacceleration and switched the default hardware 
acceleration value from ON, 1, to OFF 0 and degraded the graphic processing 
to bitmap (.bmp) vector graphics.  Works fine, though I am not doing any on the 
3d modeling the AutoCad products like Civil 3D or Revit could do.

Stephan

On Mon, 7/27/15, Daniel Pocock dan...@pocock.pro wrote:

 Subject: [VBox-users] practical use of second video card/GPU with PCI  
passthrough
 To: vbox-users-community@lists.sourceforge.net
 Date: Monday, July 27, 2015, 11:55 AM
 
 
 
 Hi all,
 
 I'm looking at a scenario with a Linux host and a Windows
 guest
 
 The main reason for the Windows guest is to run AutoCAD
 
 I've heard various opinions about this: AutoCAD runs, but
 some graphical
 operations a bit slow, even with the VirtualBox 3D
 acceleration enabled.
 
 I'd like to understand whether it is possible to do the
 following and
 the practical issues that may arise:
 
 - add a second video card/GPU to the machine
 - add a second monitor, connected to the new video card/GPU
 - associate the second video card/GPU with the guest using
 PCI passthrough
 
 Some questions come to mind:
 
 - how stable is the passthrough support these days?
 - how will the mouse pointer and keyboard know when to
 interact with the
 guest and how to get them back to the host?
 - how to install the video card driver in the guest, will it
 just work
 in a VESA mode the first time it starts up?
 - has anybody tried this particular solution with AutoCAD,
 was it worth
 the effort?
 - can anybody comment on which brand of card is most likely
 to work with
 passthrough, e.g. the NVIDIA Quadro cards perhaps?
 
 Regards,
 
 Daniel
 
 
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Re: [VBox-users] practical use of second video card/GPU with PCI passthrough

2015-07-27 Thread Daniel Pocock 


On 27/07/15 18:25, Alexey Eromenko wrote:
 What you describe is a theoretical use. A valid use case.
 In reality, VirtualBox doesn't support GPU passthrough (only Network
 card/Ethernet passthrough). And even that one is buggy.
 
 I believe, a major code improvement is required for GPU pass to be possible.
 


This blog suggests it is possible with VirtualBox:

http://acceleware.com/blog/state-gpu-virtualization-cuda-applications-2014

although I don't know where they get their information from or if they
really tested it or if they only refer to HPC use cases (without a display)

Do you believe what I describe is feasible with any other virtualization
solution such as KVM or Xen?


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