I am working on a vision system and using Opencv for image processing and I have to present the whole system as a 32 bit ActiveX control to be integrated in an IWS (Indosoft Web Studio) application as IWS is 32 bit.
How can I do that as I would need a 32 bit Opencv build with cuda support and there is no 32 bit Cuda toolkit any more.
Can anyone please clarify the following from Nvidia.
Native development using the CUDA Toolkit on x86_32 is unsupported.
Deployment and execution of CUDA applications on x86_32 is still
supported, but is limited to use with GeForce GPUs. To create 32-bit
CUDA applications, use the cross-development capabilities of the CUDA
Toolkit on x86_64.
Support for developing and running x86 32-bit applications on x86_64
Windows is limited to use with: GeForce GPUs CUDA Driver CUDA Runtime
(cudart) CUDA Math Library (math.h) CUDA C++ Compiler (nvcc) CUDA
Development Tools
I can see the point but I can't find any direction on how to use the cross-development capabilities of the CUDA Toolkit on x86_64.
Echoing a comment into an answer -- yes you can cross compile to 32 bit output using a 64 bit CUDA tool chain in Windows. However, NVIDIA ceased delivering 32 bit CUDA application libraries many years ago. Quoting Robert Crovella:
This means that CUFFT, CUBLAS, NPP, and other such libraries are only
provided for use when the x64 platform is selected. If OpenCV had any
dependency on NPP, for example, you would be out of luck
Given OpenCV has dependencies on CUFFT, CUBLAS, and NPP, it is extremely unlikely that you can build and run a 32 bit OpenCV version using a modern CUDA toolkit because of the lack of libraries.
Related
I have a task on uni starts with setting the visual studio environment to :
OpenCL SDKs:
AMD – AMD APP (Accelerated Parallel Processing)
NVIDIA – CUDA (Compute Unified Device Architecture)
Intel – Intel SDK for OpenCL Applications
OpenCL uses an “Installable Client Driver” (ICD), model
To allow platforms from different vendors to co-exist
Applications can choose a platform at runtime
And I don't know how to do it ..
i need halp and thanks
I checked by running Regedit for the settings but I only found the default
In order to make OpenCL available for pre-compiled programs you simply need to install the Nvidia, AMD or Intel GPU drivers, depending on which GPU you have (not that older Intel integrated GPUs don't support OpenCL).
For CPU OpenCL support you can install the Intel runtime (Intel only) or POCL (open source, all modern CPUs supported, but you need to compile it from source). Unfortunately AMD does not provide APP SDK with CPU support anymore (although a simple web search will still get you the executables).
All of the above automatically register the respective ICD, so you don't have to do anything special about it.
For developing OpenCL applications you need a standalone OpenCL ICD loader (.lib/.a and .dll) and the OpenCL headers (.h), which you can get from those links, though you need to compile the former. These are also provided in ready to use, binary form in OpenCL SDKs such as the ones provided by Intel (which includes Intel's OpenCL CPU runtime) or AMD.
I'm doing academic robotics research, so we need to integrate several libraries in the field of vision, sensing, actuators.
There's a huge problem when trying to use libraries that solve problems and also how to integrate them together, since some use CUDA, othres ROCm, others OpenCL. I don't have an NVidia hardware in my host machine.
I'm starting the research on how to be a bit independent on this (I'm willing to sacrifice on performance), but there are several libraries that compile CUDA to portable C++, or CUDA to OpenCL, so it seems it shouldn't be a blocker having either NVidia or AMD in my opinion.
I'd suggest having these libraries in mind
https://github.com/hughperkins/coriander (convert CUDA to OpenCL to run in other cards)
https://github.com/ROCm-Developer-Tools/HIP (convert CUDA to portable C++).
Can you suggest alternatives to this? There may be better ways on how to use CUDA enabled libraries on a non NVidia enabled host.
The specific case would be to run PoseCNN library (it was built with CUDA) without CUDA or Nvidia in an Ubuntu machine. https://github.com/yuxng/PoseCNN
I have an intel i7 haswell cpu, and I would like to start exploring OpenCL development. In particular, I am interested to run OpenCL code on the integrated GPU.
Unfortunately, by now, I was not able to find any SDK on Intel's site..
May you provide some links, together with a summary of the current status of OpenCL tools for the Linux platform and Intel hardware?
I think this would be useful to many other people..
Thanks a lot!
Intel does not provide free support for OpenCL on their iGPUs under Linux - you have to buy the Intel Media Server Studio, minimum $499. On Windows, you can download a free driver to get OpenCL capability for the iGPU: https://software.intel.com/en-us/articles/opencl-drivers#philinux.
Note that you can use any OpenCL SDK you want - it doesn't have to be Intel. The SDK is only useful for building your program. For running an OpenCL program, you need an appropriate runtime (driver) from the manufacturer. The AMD SDK will give you access to the CPU as an OpenCL device, but not the iGPU.
There is Open Source OpenCL implementation for Intel GPUs on Linux called Beignet, maintained by bunch of guys from Intel.
Sadly, couldn't personally try and check if Your's GPU is properly supported, but on their wiki they states:
Supported Targets
4th Generation Intel Core Processors "Haswell", need kernel patch currently, see the "Known Issues" section.
Beignet: self-test failed" and almost all unit tests fail. Linux 3.15 and 3.16 (commits f0a346b to c9224fa) enable the register whitelist by default but miss some registers needed for Beignet.
This can be fixed by upgrading Linux, or by disabling the whitelist:
# echo 0 > /sys/module/i915/parameters/enable_cmd_parser
On Haswell hardware, Beignet 1.0.1 to 1.0.3 also required the above workaround on later Linux versions, but this should not be required in current (after 83f8739) git master.
So, it's worth a shoot. Btw, it worked well on my 3rd generation HD4000.
Also, toolchain and driver in question includes bunch of GPU-support test cases.
For anyone who comes across this question as I did, the existing answers have some out-of-date information; Intel now offers free drivers for Linux on the site posted above: https://software.intel.com/en-us/articles/opencl-drivers#philinux
The drivers themselves are only supported on 5th, 6th and 7th gen Core processors (and a bunch of other Celerons and Xeons, see link), with earlier processors such as 4th gen still needing the Media Server Studio.
However, they now offer a Linux Community version of Media Server Studio which is free to download.
They also have a Driver Support Matrix for Intel Media SDK and OpenCL which has some useful information about compatibility: https://software.intel.com/en-us/articles/driver-support-matrix-for-media-sdk-and-opencl
You may check intel open source Beignet OpenCL library: http://arrayfire.com/opencl-on-intel-hd-iris-graphics-on-linux/
For me (ubuntu 15.10 + Intel i5 4th generation GPU) it works quite well.
P.S.
Also I must say that I managed to download "media server" for linux a couple of months ago (but didn't used it yet). So you may check it also.
I have a computer that has an Intel CPU and an NVIDIA GPU, running Windows 7. I have a software module that is written in NVIDIA CUDA, and another module written in OpenCL. I would like to run the OpenCL module on the CPU, using the Intel implementation of OpenCL, and at the same time, use the CUDA module.
In my system I installed first the CUDA SDK, and then the SDK from Intel.
I've compiled the program in Visual Studio 2012, instructing the linker to use the Intel's library (and I compiled against the OpenCL headers provided by intel).
However when I run a simple program to query the hardware I'm only able to see the NVIDIA card.
I've tried modifying the Windows Registry, and the PATH variable, with no look. When I query the dependencies with "Dependecy Walker" I see that the program depends on a dll located in c:\windows\system32, which is not the folder where the Intel dll is. I've tried deleting this dll but I still see this dependency, and I'm only able to access the GPU.
Any idea about what could be happening?
On Windows, "OpenCL.dll" is the ICD provided by Khronos and redistributed by AMD, NVIDIA and Intel.
The actual drivers are referenced by the Registry, and the ICD enumerates them all.
When you query the OpenCL platforms, you'll see one for each installed driver (AMD, NVIDIA, Intel).
Within each platform there will be devices (or device), for example, in the NVIDIA platform you'll find your NVIDIA GPU and under the Intel platform you'll find your CPU.
Don't replace OpenCL.dll
Run clinfo or GPU-Z to see what OpenCL platforms and devices it sees.
Re-install the Intel CPU driver (a new one was just posted 2 days ago) to make sure their driver is installed.
Note: Your CPU needs to have SSE 4.2 for the Intel CPU driver to work.
You could try the Installable Client Driver (ICD) Loader. However, I have no experience if it works on Windows.
Or:
Since you don't want to use the GPU with OpenCL you can simply copy the Intel OpenCL.dll into your working directory. The working directory is visited first when .dlls are loaded. So, even if the Nvidia OpenCL.dll is installed into your windows/system32 directory the Intel library is found first and therefore loaded. There may be better solutions maybe load the dll on demand as discussed here Dynamically load a function from a DLL but as a fast solution it should work.
I have a laptop running Ubuntu, it has a 32 Bits processor (Intel Core 2 Duo T6400 2.00GHz) and a graphics card Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller. I would like to know if I can program with OpenCL in this system. If yes what do I need?
I have been searching Google, ofcourse. I found this page:
http://software.intel.com/en-us/articles/download-intel-opencl-sdk/
But I only found a RPM package in the Linux section. I can install it in my Ubuntu system, but the package is for a 64 bit system.
Unfortunately you will need the following distributions:
http://software.intel.com/en-us/articles/opencl-release-notes/
Novell* SUSE* Linux Enterprise Server 11 Service Pack 1 (64-bit version)
Red Hat* Enterprise Linux 6 (64-bit version).
If you cannot change distribution, an alternate way is to use NVIDIA's CUDA SDK in emulation mode. It will be slow, but will work.
Try AMD's APP SDK (link). It has 32 bit version and runs on Intel CPUs without any problems.
Using Intel GPUs for OpenCL is impossible right now.
Intel does not support GPU accelerated OpenCL as of now. The OpenCL SDK you linked in your question will run on your CPU. So yes, no matter what GPU you have in your system, you will be able to do OpenCL -- albeit on the CPU.
Furthermore Intel only provides an RPM. You can try to use Alien to install it on your Ubuntu system, if you had a 64bit CPU. The only thing you could do now would be to get an NVIDIA or AMD GPU and use their OpenCL SDKs respectively. Or get a new computer with Intel CPU / and 64 bit support.