GPU-Quicksort in OpenCL 2.0: Nested Parallelism and Work-Group Scan Functions
Please take a look at my OpenCL 2.0 tutorial on the use of enqueue_kernel and work-group scan functions. It also has a very cool algorithm, GPU-Quicksort, implemented in both OpenCL 1.2 and...
View ArticleNew SDK install fails with symbol lookup error when building kernel code
Hello,I'm quite new to OpenCL and parallel computing in general.I have just installed the SDK on a Linux SLES11 computer with a Core i7-4770 Processor. Files installed were...
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is this a bug? clCreateProgramWithBinary failed from ir file
comile command: /opt/intel/bin/icpc -g -o test -I/opt/intel/opencl-sdk/include -L/opt/intel/opencl/lib64 -lOpenCL *.cpp run command: ./test test.cl -debug output: CL_PLATFORM_NAME: Intel(R)...
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Breakpoints not working in VS2013
This is very similar to an issue I ran into a while ago (in which I was using VS2012 rather than 2013), which turned out to be caused by (silently!) incompatible versions of Intel's OpenCL runtime, and...
View ArticleExisting code using OpenCL C++ Wrapper would not compile properly
Hi,I have an existing C++ application that uses OpenCL C++ Wrapper API, which compiled on an earlier Intel OpenCL SDK (I forgot the version), but after I upgrade my laptop to Windows 8.1, Visual Studio...
View ArticleOpenCL compiler bugs
As part of a research project on finding bugs in multi- and many-core compilers, my team have found what we believe are some bugs in the Intel OpenCL 2.0 SDK compiler.Would Intel be interested in...
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is this a bug with intel opencl compiler?
My project work well if i compile it from opencl source file(test.cl) with clCreateProgramWithSource function. and save the cl program binary into an ir file(test.ir). When i recompile the cl...
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Total crash of VS2013 when debugging, when you pass in a global buffer of an...
If a kernel takes an argument which is a pointer to a __global enum type, and that enum type has at least one member defined as having the value of other another (previous) member, then attempting to...
View ArticleOpenCL extension cl_intel_simultaneous_sharing
Is there any documentation on this extension in the new 3960 driver?Added support for OpenCL extension cl_intel_simultaneous_sharing to allow sharing of memory buffers between OpenCL, OpenGL, and...
View Articlecl_intel_simultaneous_sharing OpenCL extension in a new driver
Check out the specification for cl_intel_simultaneous_sharing OpenCL extension that was released with a new...
View ArticleConcurrent Kernel Execution
Can host threads execute kernels concurrently with intel sdk for opencl? I heard that kernels(commands) from different command-queues will be executed concurrently on the device. Is that true? And, is...
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segmentation fault inside clBuildProgram (bug demo attached)
I am experiencing a segmentation fault inside the call to clBuildProgram when using the Intel platform and Intel Xenon CPU. This is for a relatively complex kernel / OpenCL program. Simple kernels...
View ArticleOpenCL in windows kernel driver
Hi,I am a newbie to opencl and would like to know whether I can use Intel OpenCL SDK in a Windows Kernel driver. For eg: In windows display driver?Regards
View ArticleUbuntu install results in CL_DEVICE_NOT_AVAILABLE
I've installed the Intel SDK on my Ubuntu VM, and the install seems to have worked fine. I can run the program here:https://gist.github.com/rmcgibbo/6314452/download#Which results in this info. As near...
View ArticleWhat's wrong with this kernel?
struct RGB16 { ushort R, G, B; }; __kernel void scale2D_3u16(__global ushort* restrict in, __global ushort* restrict out) { int xPos = get_global_id(0); int yPos = get_global_id(1); int p =...
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Unable to run SPIR code with Intel's OpenCL drivers
I am unable to pass a pointer to a kernel using intel's OpenCL drivers for Intel(R) Xeon(R) CPU E3-1245 v3 @ 3.40GHz on Linux.I was able to get the program to work using AMD's CPU OpenCL drivers...
View ArticleOpenCL C++ compiler problem
Hi,I have Windows 8.1 64-bit, Intel OpenCL SDK 4.6, Visual Studio 2013 Express Edition. Also I have added all nessesary directories in the project properties (include directory, lib directory and...
View ArticleVTune does not work when analyze processor graphics hardware events
Hi everyone, My VTune 2015 doesn't work when I choose "Overview" at "Analyze Processor Graphics Hardware Events". (work fine when choose "None". ) The log shows "The result you are opening is empty....
View Articlecl_khr_fp64 and opencl CPU for Bay Trail Atom Z3000
yep, its me again :)I brought a Pendo Pad 8 tablet running Windows 8.1 (for only $200 AUD) to play with. There is a problem with the opencl cpu driveri.e. - CL_DEVICE_NAME: Intel(R) Atom(TM)...
View ArticleSegment fault in clBuildProgram
As I posted in subject https://software.intel.com/en-us/forums/topic/533980Here is more informations:[common@localhost ~]$ workspace/BenchmarkX264/Debug/BenchmarkX264 x264 [info]: using cpu...
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