Where can I download Linux OpenCL driver for Intel HD 4600 graphics?
Hi all,Title says it all. I am running Fedora 27 Linux on i7-4790K haswell (HD 4600 graphics). It has two Nvidia gpus and OpenCL for them works fine, but I cannot find any OpenCL library for Intel...
View Article[Advice] Efficient way to gather data from global memory
Hi to everyone,I am working on a OpenCL Monte Carlo code for particle transport, and in order to alleviate the thread divergence, due to the stochastic nature of the method, I am trying to implement an...
View ArticleIOC64.exe always crashes for a specific program on specific Intel Processor
We are facing a wierd issue with OpenCL SDK:We have two very complex OpenCL programs abc.cl and def.cl that we are building using ioc64.exe on various Intel based machines. So far the work was...
View ArticleLocal histograms - one big kernel launch or multiple kernel launches ?
Hello,I work on implementing local histograms on images in OpenCL. I was wondering if there is a speed penalty if I start a kernel for each histogram patch (subarray) instead of starting a single...
View ArticleFrequent BSoD on Win10 -- 24.20.100.6025 NEO
When I execute my kernels, I'm frequently seeing a Blue Screen of Death with the .6025 driver on my Win10 workstation.The processor is a Core i7-7820HQ (HD 630). There is also a Quadro M1200...
View ArticleThere are 2 CPU in my computer.How to use them simultaniously?
There are 2 CPU in my computer.Each of them has several cores.Now I can use one of them, but I want to know how to use them for a single kernel simultaniously.Even more, if my computer has several CPUs...
View Articleif I can find several suitable devices
if I can find several suitable devices, how I can use them simultaniously?it seems that i have to:1)split my task into parts.2)create a thread(windows system) for one device3)use one thread to deal...
View ArticlePossible? one thread, multiple devices
Hi.Is it possible to use a one-thread program to utilize multiple opencl devices simultaniously?If so, how to do it?Thanks in advance.tdchen
View Article.6025 driver: "The GFX driver doesn't support disassembly code display"
Why does the .6025 driver support dumping GEN assembly on an i5-7260U NUC but not an i7-7820HQ laptop (via ioc64 or CodeBuilder).Both are Kaby Lake.The laptop reports "The GFX driver doesn't support...
View ArticleOut of Order Queues -- do they work? Enqueued Barriers with Events -- very slow?
Two questions:(1) What is the expected behavior of out-of-order queues on GEN9 + NEO?I'm issuing a number of small kernels into an out of order command queue with profiling enabled and no barriers...
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clGetPlatformIDs crashes if integrated graphic card disabled
I have an Intel(R) Core(TM) i5-6600K CPU with Intel(R) HD Graphics 530 and my main graphic card NVIDIA GeForce GTX 1060 6GB.OS: Microsoft Windows [Version 10.0.14393]All latest drivers installed from...
View ArticleNew 24.20.100.6094 Win10 driver performance regression from .6025
My suite of kernels compiled (binaries) with the .6094 driver on Win10/x64 take almost twice the amount of time to execute as those compiled with .6025.Compiling on .6025 and executing on .6094 shows...
View ArticleHow to Locally Debug OpenCL Kernels on an Intel GPU?
My goal is to debug OpenCL kernels on an Intel GPU using Visual Studio 2017. My Intel GPU is not being used for graphics, so I should be able to use a single machine according to the “Developer Guide...
View ArticleDoes cv sdk (l_openvino_toolkit_p_2018.1.249.tgz) support Atom(TM) x5-Z8350...
Hi,After installing OpenCL NEO driver using script install_NEO_OCL_driver.sh from SDK l_openvino_toolkit_p_2018.1.249.tgz we observe such output of clinfo tool.$ clinfo Number of platforms...
View ArticleIntel OpenCL Platform Disappears in Debug Mode
I am using Visual Studio 2017 version 15.4.5 with “Intel SDK for OpenCL for Windows” version 7.0.0.2567.If I launch an OpenCL project from Visual Studio without debugging, clGetPlatformIDs(0, NULL,...
View ArticleInstallation problem openCL sdk
Hello everyone,I'm new to this forum. I managed to install openCL sdk on windows, with no problem. I need to do the same thing for linux though, but I can't manage to install it. More details are given...
View ArticleInstall intel sdk for opencl applications
Hi,do I need to use the script shared at https://software.intel.com/en-us/articles/sdk-for-opencl-gsg for installing intel sdk even though my ubuntu kernel version is 4.15 (ubuntu 18.04 version) ?I...
View ArticleSVM Fine-Grained Buffer Atomics Regression with NEO Drivers for Intel GPU on...
I wrote a simple test to prove that SVM fine-grained buffer atomics work on my system. The Intel OpenCL driver says that my GPU (HD Graphics 630) supports fine-grained buffers with atomics.If I use any...
View ArticleInstall Intel OpenCL SDK on Ubuntu 16.04
I'd like to ask for help on installing Intel OpenCL SDK as described here https://software.intel.com/en-us/articles/sdk-for-opencl-gsg I have followed those steps but then I need to run SDK installer...
View Articlehow to compile genFFT
Hi, I download the source code of genFFT from this link: https://software.intel.com/en-us/articles/genFFTbut how to compile it? I use VS to open the solution and compile but with many error such like:...
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