i wrote a cuda program and i am testing it on ubuntu as a virtual machine. the reason for this is i have windows 7, i don't want to install ubuntu as a secondary operating system, and i need to use a linux operating system for testing.
my question is: will the virtual machine limit the gpu resources? So will my cuda code be faster if i run it under my primary operating system than running it on a virtual machine?
I faced a similar task once. What I ended up doing was installing Ubuntu on a 8GB thumb drive with persistent mode enabled.
That gave me 4GB to install CUDA and everything else I needed.
Having a bootable USB stick around can be very useful. I recommend reading this.
Also, this link has some very interesting material if you're looking for other distros.
Unfortunately the virtual machine simulates a graphics device and as such you won't have access to the real GPU. This is because of the way the virtualisation handles multiple VMs accessing the same device - it provides a layer in between to share the real device.
It is possible to get true access to the hardware, but only if you have the right combination of software and hardware, see the SLI Multi-OS site for details.
So you're probably out of luck with the virtualisation route - if you really can't run your app in Windows then you're limited to the following:
Unrealistic: Install Linux instead
Unrealistic: Install Linux alongside (not an option)
Boot into a live CD, you could prepare a disk image with CUDA and mount the image each time
Setup (or beg/borrow) a separate box with Linux and access it remotely
I just heard a talk at NVIDIA's GPU technology conference by a researcher named Xiaohui Cui (Oak Ridge National Laboratory). Among other things, he described accessing GPUs from Virtual machines using something called gVirtuS. He did not create gVirtuS, but described it as an opensource "virtual cuda" driver. See following link:
http://osl.uniparthenope.it/projects/gvirtus/
I have not tried gVirtuS, but sounds like it might do what you want.
As of CUDA 3.1 it's virtualization capabilities are not vivid, so the only usable approach is to run CUDA programs directly on the target HW+SW
Use rCUDA to add a virtual GPU to your VM.
Related
I've started studying AWS, and in the process of it, I bumped into this term called ECS/EKS. In the explanation, it stated that they are a type of docker container, which uses "operating system level virtualization".
I've done some research, and I would like to check if my recognition that
it is having several OS in one virtual machine
correct. Also, if it is correct, I would like to know some actual examples of how this works, and also the benefits of using this specific technology.
Thank you
containerization != virtualization for sure.
OS virtualization is where a single kernel manages the system, creating virtual OS instances that are isolated from each other.
example : smart OS Zones
A key difference from hardware virtualization technologies is that only one kernel is running
Hardware virtualization is where a hypervisor manages multiple guest operating systems, each running its own kernel with virtualized devices.
examples: Xen and KVM. Kinds includes:
Full virtualization—binary translations
Full virtualization—hardware-assisted
Paravirtualization
Hybrid Virtualization
different implementations of hardware virtualization includes : VMware ESX, XEN( open source and used by AWS and Rackspace), KVM(used by Google Cloud)
source : Systems Performance: Enterprise and the Cloud, 2nd Edition
As far as the benefits are concerned they varies from implementation to implementation.
You might find this helpful as well
for brevity I tried to use least amount of references , this topic can be easily expanded in to books.
I'm trying to install and use VirtualBox in a lab with heterogeneous computers. In one machine (with Intel E5500) it works perfectly. In all others (most wwith E2180) it doesn't work. Why is it happening?
All machines have Windows 7 32 bits.
Log: https://pastebin.com/nfbPYGP7
You might want to try and modify your settings.
In System /// Acceleration panel look for “enable VT-x”. When enabled your VM will take advantage of the hardware VT-x circuits but it might be the problem for your E2180 as it does not implement this Technology.
Processor E2180 vs
Processor E5500
I'd like to run some programs in my Azure VM (Windows Server 2008), that require OpenGL 2.0.
However the VM has no video hardware :), how can I fake the programs into believing I have a good enough video card?
How am I supposed to get to the point of all development in the cloud, if I can't have virtual video cards? :)
You could place a Mesa softpipe (software rasterizer) build opengl32.dll beside your program's executable. Heck, on a machine without a proper graphics card it would be even acceptable to replace the system opengl32.dll (though this is not recommended).
Check the OpenGL section here... and make sure u r using openscad 64 bit
Is compiling OpenGL program, made on a VirtualBox Machine Windows XP, possible on a diffrent machine, for example, if I made the program on a Virtual Machine and wanted to send the compilation process to Ubuntu which is the host.
I'm asking this, because I was searching for a method to use my host's GPU for Virtual Machine, but I wasn't able to do that, couldn't find any possible solution
I was searching for a method to use my host's GPU for Virtual Machine
The location where and on what OS the program has been built has nothing to do with this particular issue. OpenGL is just an API specification and when you compile a program to use OpenGL it will just follow the API but not contain one blip of code that actually does talk with a GPU. That's what drivers and the OpenGL implementations they deliver do.
What you need is a driver for within Virtual Machine, that exposes a OpenGL API and passes the commands on to the hosts GPU.
I've been hearing a lot about about how the new version of VMWare Fusion can run virtual operating systems in "headless mode".
A Google search makes it clear that other virtualisation products also have similar features, however, I have not been able to find a good description of what this actually means? What is happening when you do this?
Headless mode means that the virtual machine is running in the background without any foreground elements visible (like the Vmware Fusion application)
You would have no screen to see running the front end; i.e. the screen/console would not be visible, even though the operating system is running, and would typically have to access the machine via SSH.
For anyone that is interested, you can activate headless mode in VMWare Fusion by running the following command in Terminal.app
defaults write com.vmware.fusion fluxCapacitor -bool YES