So, im trying to write some code that utilizes Nvidia's CUDA architecture. I noticed that copying to and from the device was really hurting my overall performance, so now I am trying to move a large amount of data onto the device. As this data is used in numerous functions, I would like it to be global. Yes, I can pass pointers around, ...
I've actually solved this, but I'm posting it for posterity. I ran into a very odd issue with the DataGridView on my dual-monitor system. The issue manifests itself as an EXTREMELY slow repaint of the control (like 30 seconds for a full repaint), but only when it is on one of my screens. When on the other, the repaint speed is fine. I h...
Hello, I'm trying to take advantage of the constant memory, but I'm having a hard time figuring out how to nest arrays. What I have is an array of data that has counts for internal data but those are different for each entry. So based around the following simplified code I have two problems. First I don't know how to allocate the dat...
I'm optimizing a directx graphics application to take advantage of nVidia's SLI technology. I'm currently investigating some of the techniques mentioned in their 'Best Practices' web page, but wanted to know what advice/experience any of you have had with this? Thanks! ...
I am developing an OpenGL application and I am seeing some strange things happen. The machine I am testing with is equipped with an NVidia Quadro FX 4600 and it is running RHEL WS 4.3 x86_64 (kernel 2.6.9-34.ELsmp). I've stepped through the application with a debugger and I've noticed that it is hanging on OpenGL calls that are receivin...
I'm developing an OpenGL application for Windows XP. The target machine has 2 NVIDIA GeForce 9800GT video cards, which are needed because the application needs to have output 2 streams of analog video. The application itself has two OpenGL windows, one for each video card. Each video card is connected to one monitor. As for the code, it...
I'm working on a stereoscopy application in C++ and OpenGL (for medical image visualization). From what I understand, the technology was quite big news about 10 years ago but it seems to have died down since. Now, many companies seem to be investing in the technology... Including nVidia it would seem. Stereoscopy is also known as "3D St...
I'm using the NxWheelShape to simulate wheels on my car. When I render the wheel model, I use shape->getGlobalPose() to get a 4x4 matrix and render the wheel there. However this gives me the position of the shape, not where the casted ray hits other geomnetry, so even if the car behaves properly, the wheels are stationary (don't even rot...
I was recently working on a windows program that would sometimes become unresponsive when scrolling through a large list of items in a production environment. Of course it works fine on my desktop. The production Environment is: Windows XP based Workstation with 2 monitors nVidia Video Drivers with nView enabled Of note is a Dr watso...
I recently compared some of the physics engine out there for simulation and game development. Some are free, some are opensource, some are commercial (1 is even very commercial $$$$). Havok, Ode, Newton (aka oxNewton), Bullet, PhysX and "raw" build-in physics in some 3D engines. At some stage I came to conclusion or question: Why should...
Hi, I'm a CS undergrad student and wanted to finalize my project idea soon.I am mostly interested in graphics based projects which work with help of GPUs like GPGPUS (http://en.wikipedia.org/wiki/GPGPU) or actual graphic processing using GPUs.My supervisor suggested me to look for topics related to parallel computing like in GPGPUs a...
I'd like to start coding for NVIDIA 3D Vision and wonder where can I find the documentation for it? ...
How do i get started with CUDA development on Ubuntu 9.04? Are there any prebuilt binaries? Are the default accelerated drivers sufficient? My thought is to actually work with OpenCL but that seems to be hard to do right now so i thought that i would start with CUDA and then port my application to OpenCL when that is more readily avail...
Hello: Soon enough we will have nVidia GTX 300 that would be able to execute multiple instrucions on multiple data (MIMD). I wonder if OpenCL can execute MIMD? ...
10 billion kudos for life to anyone who can figure this one out. Nvidia only provides a standard framework for Cg, which I cannot figure how I can link statically. I need to link it statically because it's for a plugin. Is there any way at all this can be done? ...
I'm looking for a way to control which monitors are currently being used via my desktop from a program. Well after a quick search I seen on Nvidia's site that their API will allow you to control the monitors... GREAT! Too bad I'm having a pretty hard time finding anything more about this... searching Nvidia's site with multiple phras...
I'm trying to compile some code for OpenCL (and the NV Computing SDK) in Xcode. I (think) I've set the search paths correctly, but when I try to compile the source code from the example (oclDeviceQuery, which builds perfectly using sudo make) I get the following error: /Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks/OpenCL.fram...
Mine is a "NVIDIA GeForce 9500 GS" and everywhere I've searched I can only find "9500 GT" ... does that mean the 9500 GS does not support any GPGPU language such as CUDA? ...
Hello, I developed small application using DirectShow and code on next link: http://www.codeproject.com/KB/directx/directxcapture.aspx If i have 2nd display active, when I close application, it reset my PC. How does it looks line? First, when I close application, for 0.5 is all ok, after that PC freezes for 1 sec, blue screen for 0....
Hi all, I've recently had a customer report an issue with my applications and NVidia nView desktop manager. Basically nView seems to 'unhide' hidden secondary forms when moving an application between monitors. I'm testing with Delphi 2010. The problem can also be seen using just the IDE (show a non-docked window, close it and then choos...