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Code Builder initialization failed
Dears,per OpenCL installation and running MS Visual Community 2015 I got issue :Code Builder initialization failed"Unable to load DLL "KernelBuilderAPI.dll": The specified procedure could not be found....
View Articlebehavior of Intel GPU cache
Hi experts,I wonder how Intel GPU manages its caches? For example, is tiled format (of an image) more friendly to cache than linear format?thanks,Jeffrey
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KernelBuilderAPI.dll
Dears,I am running Visual Studio Community 2015 on WIndows 7, 64bit. ===================================[ System / CPU ] - CPU Name: Intel(R) Core(TM) i5-4300M CPU @ 2.60GHz - CPU Core Speed: 2594 MHz...
View Articlegpu cache friendly
Hi,I wonder how gpu cache works? specifically, I have 2 Qs- does gpu HW perform prefetch?- in the 2 kernels below, which one is more cache efficient (or not much difference)? By cache efficient, I mean...
View Articlewhy use clEnqueueWriteBuffer()?
Hi Robert,in your example modulatemain.cpp, I wonder why you use clEnqueueWriteBuffer(). I looks to me clEnqueueWriteBuffer() causes extra mem copy and thus slow down computing.thanks,Jeffrey
View Articlewhy need "warmup" in image modulate app?
Hi Robert,In image modulate app, before actual clEnqueueNDRangeKernel() you have a "warmup" call to clEnqueueNDRangeKernel() . why do you need the "warmup"? To me, "warmup" doubles computation load.
View Article32-bit Intel SDK for OpenCL - From where to download ?
Hi,I have a fairly old system with Intel Core 2 Duo processor and 965 chipset for graphics. It is running windows 10 32-bit. I want to use it for running OpenCL but cannot find any OpenCL SDK which...
View ArticleSegmentation fault on linux Red Hat with 1.2.0.10002 driver
Hi,I recently update my OpenCL driver for the latest 16.1 runtime and I am experimenting random segmentation fault after creating context for my CPU (Intel(R) Xeon(R) CPU E5-2660 v3 @ 2.60GHz). I am...
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Error 1603 for GenDebuggerHost.msi when installing 2016R2
Got an error 1603 when installing 2016R2 on Windows 10:As all errors in the logfiles look like "Error 4: SELECT `Message` FROM `Error` WHERE `Error` = 1709", there is not much information there to help...
View ArticleIntel® SDK for OpenCL™ Applications 2016 R2 for Windows with OpenCL 2.1 and...
Hello,I am glad to announce the availability of Intel® SDK for OpenCL™ Applications 2016 R2 for Windows*. Please visithttps://software.intel.com/en-us/intel-opencl to download the version for your...
View ArticleTruncation of Float to Half in Intel Run Time Driver using OpenCL 2.0
Hello, The latest OpenCL Intel driver download uses OpenCL 2.0 and seem to truncate Floating point values to half values. Does anyone know a workaround or a way to get a version of Intel openCL...
View ArticleIntel OpenCL for Xeon E5 processors and Xeon Phi Coprocessors?
Hi,I'm using a CentOS Linux server with dual Intel Xeon CPU(E5) and dual Intel Xeon Phi coprocessor(KNC).(1) According to https://software.intel.com/en-us/articles/opencl-drivers, the only Intel OpenCL...
View ArticleINTEL_OPENCL_BUILD_RULES : error : internal error
Any tips on what to do when ioc32 and ioc64 die with an "internal error"?This is what both the command line and VS2013 return when using the latest Intel OpenCL API release (6.1.0.1600):ioc32...
View ArticleProblem with OpenCL and OpenGL Interoperability
Hi! I'm following this example to create a project, which uses OpenCL and OpenGL. https://software.intel.com/en-us/articles/sharing-surfaces-between-openc...I had to change a few things, but...
View ArticleSome work items not executing completely
We've recent run across an issue in our embedded product where some of our work items are not being executed completely (the kernel bails out part of the way through but does not give an error). This...
View ArticleLost dual monitor support after installing OpenCL16.1
Hi,has anyone experienced this issue of installing the OpenCL 16.1 driver, and then losing the dual monitor support that was native to the PC? I am using a Dell setup-Precision M4800/i7-4810MQ/HD...
View ArticleTip for people porting from CUDA: __syncthreads() !=...
( The following is based on some recent experiments on a GEN8 IGP )FYI -- one gotcha to watch out for when porting from CUDA to Intel IGP is that the OpenCL barrier()/work_group_barrier() operation...
View Articlewhat means of \x96g in the topic of Enabling Debugging in OpenCL™ Runtime
in the development documents,Enabling Debugging in OpenCL™ Runtime (https://software.intel.com/en-us/node/539339), there is a step like: Add the \x96g flag to the build options string parameter in the...
View ArticleNo Intellisense for OpenCL
I'm debugging OpenCL under Visual Studio on two machines, and all's mostly fine (breakpoints get hit, variable values are visible in watchlists etc). What I don't get, and really wish I did, is...
View ArticleSize of constant memory cache
Hi,I would like to obtain the size of the constant memory cache. So I want to ask, if there is any way how to do it, or if it is at least specified somewhere.Many thanks for your reply.Yours...
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