problem with clCreateCommandQueueWithProperties on Linux for NVIDIA Quadro K2200
Hello,I want to use CUDA-8.0 and OpenCL on SuSE Linux Enterprise 12.1. Unfortunately NVIDIA supports only OpenCL 1.2, so that I've installed the latest version of the Intel OpenCL SDK as well. I get a...
View ArticleIntel OpenCL r3.0-57406 on Ubuntu 16.04LTS
Hi everyone,I'm going to summarize results of my experiments with Intel OpenCL r3.0-57406 on Ubuntu 16.04 here, in assumption that community would benefit from it, save the CPU cycles etc. All tests...
View Articleneural-style/torchcl with intel-opencl-r3.0
Hi,I'm ran onto issue on "github.com/jcjohnson/neural-style"&& "torchcl" (github.com/hughperkins/distro branch distro-cl) with intel-opencl-r3.0.It runs 7 times faster than Beignet 1.1.1, but...
View ArticleHow to figure out the work group to EU mapping?
Hi everyone: Is there a way to figure out the work group to EU mapping? More specifically, is there any registers containing EU IDs available in EU, that the kernel can read during the...
View ArticleRFE: OpenCL 2.x CPU Platform SSSE3/AVX2 instruction "[v]pmulhrsw"
Request for enhancement,I'd like the OpenCL CPU compiler to generate a [v]pmulhrsw instruction when the proper idiom/sequence is detected.It's an exotic but useful instruction.The sequence that you...
View ArticleIntel intel-opencl-r3.0 (SRB3) Linux and sdk for OpenCL 2016 R2
Hi,Will the sdk for OpenCL 2016 R2 work with the new Intel opencl-r3.0 linux driver under both ubuntu 14.04 kernel 4.7 and ubuntu 16.04 kernel 4.7?Thanks
View ArticleInstall OpenCL Eclipse plugin on Eclipse Neon
Hi, I'm trying to install the Intel OpenCL plugin on Eclipse Neon.I'm using Kubuntu 16.04, the driver work fine, but I need a debugger....Zone: Code for Good
View ArticleIntel® SDK for OpenCL™ Applications 2016 R3 available for download!
We are glad to announce the availability of Intel® SDK for OpenCL™ Applications 2016 R3. Please visit http://software.intel.com/intel-opencl to download the latest version. This update adds support for...
View ArticleClik here to view.
Xeon E5-2690 v3 doesn't report correct OpenCL Max Compute Units
Here's a puzzling situation.Different drivers and architectures (x86 vs. x64) report a different "max compute units" value on a dual Xeon E6-2690 v3 workstation (2 x HyperThreaded 12-core Xeons).The...
View ArticleClik here to view.
Unable to uninstall SDK
While trying to upgrade to sdk v6.3, process was interrupted with the following error message:And then i found that it's impossible to uninstall sdk v6.1 at all.I have windows 10 with anniversary...
View ArticleBraswell iGPU OpenCL Inconsistencies
Hi, I just bought an Acer(packard bell) laptop that has a N3060 SoC. According to Intel, Wiki and Notebookcheck sites, it must have 8. Generation HD graphics 400(not 4000) of Braswell architecture...
View ArticleClik here to view.
intel_sub_group_block_read8 gets unexpected column data with large work group...
Hi,I got a problem when use intel_sub_group_block_read8 to read image2D. It is a very simple usage, just continuously read uint8. The image2D is 64x32 (Width x Height), and each pixel is a uint. Part...
View ArticleGetting Started
Hi All, I am new to Hardware Programming. Since OpenCL is C like syntax I will used it for my Hardware Development. So I came to know about the Intel SDK Development Kit available. This has something...
View ArticleGPU not found on a Joule module
Hi,I tried several sample OpenCL programs and none of them found the GPU on my Joule module. I am running an Ubuntu Linux distribution and I installed the Intel SDK which I use to compile those...
View ArticleLosing all autos and local symbols when single-stepping in CPU debugger
I'm using a VS2015 / Win10 workstation with the latest CPU driver and Code Builder installed (4.0.0.1).I'm single-stepping through an OpenCL 2.1 + AVX2 CPU kernel and after a few lines all symbols in...
View ArticlePerformance hint: Null local workgroup size detected...
My application uses a 2D kernel that is called several times on different data. Running the code builder profiler, I got a lot of the following perfromance hints (on Intel HD 4600, Windows 10, Intel...
View ArticleUnable to Launch Debugger in VS2015 running OpenCL Samples
I've downloaded and successfully run the code samples from the Intel OpenCL website under "Release" configuration.(for example, Sobel, CapsBasic, and others).So, I'm confident that my SDK/drivers setup...
View ArticleiocXX -spirvXX keeps emitting old kernel
Here's a bizarre result...I'm building a kernel with ioc64 along with the "-ir" and "-asm" options.The kernel builds, loads and runs fine as an optimized binary or as source.But I added the "-spirv64"...
View ArticleClik here to view.
Big kernel performance difference between the image created from HOST_PTR and...
Hi,We found the same kernel performance varies dramatically if the input image is created from different ways. With the attached test tool:if the input image is created from a host ptr directly, the...
View ArticlePerformance of "intel_sub_group_block_readN/writeN" vs "vloadN/vstoreN"
Does subgroup extension API "intel_sub_group_block_readN/writeN" have better performance than "vloadN/vstoreN"? I did some testing, but don't see much difference between them. Can you elaborate the...
View Article