New OpenCL™ Runtime 16.1 for Intel® Core™ 6th generation and Intel® Xeon® v4...
New OpenCL™ Runtime 16.1 for Intel® Core™ and Intel® Xeon® Processors.What’s new in this release:Support for Intel® Core™ 6th generation and Xeon® v4 processors (former Intel microarchitecture codename...
View ArticleclCreateContext return error: CL_OUT_OF_RESOURCE
Hi, everyone: I run Intel OpenCL GEMM Sample for Linux ( dwonload from bottom of https://software.intel.com/en-us/articles/sgemm-for-intel-processor-graphics), and make it successfully, but run it...
View ArticlePort GCN-optimized Kernels to 5th/6th Gen iGPU
Hello,I would like to port a GCN-optimized 1.2 kernels to run on latest Intel GPUs.Are there any general guidelines I should be following? For example, on GCN, if work group size is smaller than 64...
View ArticleAbout Intel IWOCL presentations: genFFT and Gpu daemon
Hi, just seeing slides of Intel IWOCL presentations I see three interesting ones: genFFT a FFT OpenCL library for Intel GPUs up to 2x faster than clFFT from AMD: any info on release date, if will be...
View ArticleWeird performance with loop unrolling
I have a kernel that calculates motion vectors with fullsearch and mse. There is weird performance issues with the following loop: #define W_SIZE 16 for (int y = 0; y != W_SIZE; y++) { for(uint x = 0;...
View Articlevec_type_hint() does not work for me
trying to disable auto-vectorization, I used vec_type_hint(char) as below. But checking the built assembly code, I see the kernel is still compiled as SIMD32. Any advice? __kernel...
View Articlecl_khr_fp64 unsupported message on Xeon processor
I'm getting a message saying that the extension is unsupported (error: OpenCL extension 'cl_khr_fp64' is unsupported)However some quick googling shows that it should be working fine for Xeon...
View ArticleDevice unavailable creating context with debugger enabled
Hi,I'm running a test of the OpenCL SDK to try the debugger. I have a simple program which runs as expected when launching with the OpenCL debugging *not* enabled (disabled). Once I enable the OpenCL...
View ArticleQuality of OSX Drivers
Can someone please comment on the quality of the OSX drivers for Intel CPU and iGPUs ? I am interested in the upcoming SkylakeCPUs with Iris Pro 580 GPU.So, generally, how does performance on OSX...
View ArticleAccess to eDRAM
How does one make use of eDRAM via OpenCL ? Is this simply transparent to the user, or are there ways ofensuring that data is stored in eDRAM vs. regular DRAM ? I am assuming that eDRAM is treated as...
View Articlewhy SIMD width is determined by work group size?
when workgroup size is set to one, I noticed compiler also sets SIMD width to be 1. why is the case? I mean, is it possible to put work items of DIFFERENT workgroups into one SIMD operation, such...
View ArticleMultiple CPU devices
I'm using the Intel OpenCL driver on a Debian 7 64-bit, dual E5-2670 machine, programming with the PyOpenCL interface to OpenCL.When I query available devices on the Intel platform, I see one device...
View Article_dl_check_map_versions assertion
Hello,I ran into the following assertion with the latest OpenCL SDK:$ /opt/intel/intel-opencl-1.2-6.0.0.1049/opencl-sdk/bin/ioc64 Inconsistency detected by ld.so: dl-version.c: 224:...
View ArticleOpenCL, Ubuntu 14.04, Intel i3-4010U - clGetPlatformIDs return -1001
Hi all,I have a problem that I cannot solve by my own, and I need some help.I just downloaded and installed Intel SDK for OpenCL applications. I could compile some examples on Intel's website. However,...
View ArticleOpenCL Build Program Error with 1.2 platform
Hello, I am in need of some assistance...I've downloaded and installed Intel OpenCL Applications SDK 2016 and am trying to run my OpenCL projects on Windows 10. When I select the Experimental OpenCL...
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OpenCL error CL_DEVICE_NOT_AVAILABLE Windows 7 using Intel i5
hi,I have installed Intel OpenCL SDK in my machine:- Intel Core i5-2450 CPU @2.50GHz (RAM 4GB, Windows 7 SP1, 64 bits)- Visual Studio 2013- Platform selected: Intel (R) OpenCL (there is another...
View ArticleCode Builder does not work
I installed the following two things:intel_sdk_for_opencl_setup_6.0.0.1049.exeopencl_runtime_16.1_x64_setup.msiNow when I click on any of the Code-Builder menu items in Visual Studio I get the...
View ArticleOpenCL Usage survey
Hello all, Intel is committed to continually improving the customer experience in everything we do. One of the ways we measure customer success is by gathering feedback on a periodic basis. We are...
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Using lookup table on reduction kernel produces incorrect results on GPU
I have a kernel that takes in an array of integers and returns the index of the smallest element.#ifndef LOCAL_SIZE #define LOCAL_SIZE 8 #endif // LOCAL_SIZE kernel void test( global int* in, global...
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