Implementing a packet processing program in OpenCl
Hi everybody,I am very new to OpenCl. I need to write a packet processing program in OpenCl using GPU. Program is supposed to get some packets from sockets, checks their headers, does the match/action...
View ArticleIntel Iris GPU Boost in OpenCL
I have the mac mini, cpu is intel i7-4578U with Intel Iris 51000 whose max clock is 1275MHz. I find that GPU has been locked the clock, GPU clock is 750MHz. So I install the window OS in the mac...
View ArticlePipe sample code
Hello,Can you provide a simple host + kernel code that demonstrates pipes ?Regards,Z.V
View ArticleIntel® SDK for OpenCL™ Applications Download Link Broken
Hi,I'm trying to download the Intel® SDK for OpenCL™ Applications tool and can't get past the registration form to download it. I fill in the relevant details, click submit and the page goes blank....
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CL_MEM_OBJECT_ALLOCATION_FAILURE question
Hi,I stumbled on some interesting behaviour w.r.t. allocating memory that I was hoping someone could shed some light on. I've written a simple program that shows the behaviour (I'm happy to provide it,...
View Articlekernel with pipe parameter: compilation error
Hello,I tried compiling the following kernel with the last version of OpenCL SDK:__kernel void pipe_producer (__write_only pipe float rng_pipe){}And got the following errors:1:3:30: error: expected...
View ArticleConsumer Kernel with pipe
Hello,The following code is in a "consumer kernel"://reserve pipe for reading reserve_id_t rid = work_group_reserve_read_pipe(rng_pipe, szgr); if(is_valid_reserve_id(rid)) { //read random number from...
View ArticleLicense question
Hello all,we want to use the Intel „SDK for OpenCL™ Applications for Windows“. I read the accompanying file "LicenseAgreement.rtf". I am confused: In this LicenseAgreement.rtf there are many different...
View ArticleIntel® SDK for OpenCL™ Applications 2016, now with GPU debugging, is released!
I am glad to announce the availability of Intel® SDK for OpenCL™ Applications 2016 for Windows*, CentOS*, and Ubuntu*. Please visit https://software.intel.com/en-us/intel-opencl to download the version...
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Code Builder analysis session doesn't show kernel tips
Greetings, I am working with MS VS 2013 with the intel SDK build 6.0.0.1049 (latest) , and when creating a nwe Analysis Session , the kernel section indicates that there are 6 performance tips , but...
View ArticleExecution Model For the Intel GPU
Now I'm confused about execution Model of the work-items . There are 3 compiled model(SIMD8 SIMD16,SIMD32) for the intel GPU. 1. For the SIMD-X,does that mean there are X work-items execute...
View ArticleKernel Compute Errors on CENTOS7.1
Hi, Something strange hanppened when I was debugging a kernel.I tested my kernel on win7 using both CPU and GPU as computing device, the result are both correct.When I do the same test on...
View ArticleLine-by-line time profiling with an OpenCL kernel
hi, I am working on a project to optimize an OpenCL code. This kernel is computationally dense, and I'd like to see where is the bottleneck.I haven't installed Intel's CL libraries yet, but I am...
View Articlegpu aperture memory
A few questions about aperture memory,- using OCL, can i allocate memory in aperture memory?- does the concept "aperture memory" apply to intel integrated GPU? My understand was "aperture memory" is...
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i7-5775c Iris Pro vs CPU performance
Hi,I'm benchmarking i7-5775c's 4 CPU cores against its Iris Pro 6200 for simple OpenCL kernels. Guess you can say I want to know when it makes sense to off-load computation onto the IGP. One experiment...
View ArticleQuestions on loop and math function overhead on Intel HD GPU
I have an Intel HD 4600 gpu and noticed some performance discrepancies when running a microbenchmark with a significant number of loops for built-in math functions (arithmetic operators are fine). The...
View ArticleHow to reinstall Open CL for Intel Core
My system :Processor Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz, 3301 Mhz, 6 Core(s), 12 Logical Processor(s)Windows 10 64 bit Pro.I had an install of the Intel Core OpenCL drivers that I was using...
View ArticleWhich version of visual studio do I need?
Hi,Latest OpenCL SDK seems to work best as VS plugin because, when I open up code-builder gui, the first thing it says is "deprecated".However, which version of visual studio do I need? Can I use...
View Articleinstallation problems on desktop
Hi, I want to test how the GPU processing is faster than common things so now I'm trying to setup the environment for OpenCL and OpenCV.however, i got an issue for installation for OpenCL SDK on my...
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Iris 6100/Linux: can't get asynchronous kernel execution
I can't seem to get the GPU to run OpenCL kernels asynchronously/in parallel, which is crucial for my use case. Without this I can't make full use of the GPU's compute resources. I use local memory so...
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