Compiler error with Intel HD
Hi,I'm having trouble compiling a kernel for Intel HD Graphics (either using OpenCL API or Code Builder). Compilation works for CPU. The kernel looks like this:#define ACC_SIZE 32 __kernel void...
View ArticleFeedback: nice feature disappears in OpenCL Code Builder
Hi,I have engaged in OpenCL development for three years.Today I tried the new release OpenCL code builder.It is disappointing somehow, for the following reason:Filling the information of performance...
View ArticleIntel provides new Integrated OpenCL development experience
OpenCL support at Intel is now going mainstream with full integration into Intel’s portfolio of software development suites. The Intel® SDK for OpenCL™ Applications features are now integrated into...
View ArticleRFE: OpenCL kernel debugger for HD Graphics
It would be great if there was a kernel debugger for HD Graphics.
View ArticleOpenCL 1.2 on Intel Core T8300 with Linux
Hi,i installed "intel_code_builder_for_opencl_2015_ubuntu_5.0.0.43_x64.tgz" on Ubuntu Linux.My CPU is an Intel(R) Core(TM)2 Duo CPU T8300.I cannot find out whether the drivers support this CPU or not...
View ArticleBuild multiple .cl files into single .ir
I am implementing a number of kernels. I have a requirement that these are built into a single .ir. However. I would like to keep my kernels in separate .cl files.Is it possible, via ioc32 cmd line, to...
View ArticleHow to build native OpenCL kernel by assembly and load this kernel
Hello,I want to learn how to build native OpenCL kernel by assembly and load this kernel. I am already able to generate assembly by the OpenCL kernel and compile it then:ioc64 -cmd=build...
View ArticleAny way to coax HD Graphics IGP into SIMD4 or SIMD4x2 mode?
I asked a similar question last year and want to know if there is any way to coax the compiler into mapping "vectorized" code onto the IGP?More specifically, I'd like to launch a workgroup where each...
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Which fine grain SVM features are supported in the current Gen8 driver?
I don't have Broadwell hardware in front of me yet so can you tell me which fine-grain SVM capabilities are supported in the latest driver on Gen8 devices? Just FINE_GRAIN_BUFFER?If FINE_GRAIN_SYSTEM...
View ArticleMemory Leak in Windows CPU OCL 1.2/2.0, not so much GPU 1.2
Hello world,I'm developing an asynchronous Windows application and have noticed a strange loss of system memory. My application internally tracks memory usage, and when not using OpenCL at all it...
View ArticleSame kernel but huge performance difference under linux and windows
Hi, I have managed to run my kernel on iGPU under Linux and Windows.Officially linux does not support to run kernel on iGPU but an OpenCL source project "beignet" come to help.So following is the...
View ArticleIntel LLVM Optimizer Optimization Flags
Hi all,I'm using the Intel offline compiler and the LLVM-based optimizer with Intel specific optimizations (oclopt). For the optimizer I have used regular O optimization levels (O1, O2, O3) which...
View ArticleIntel LLVM Optimizer Optimization Flags
Hi all,I'm using the Intel offline compiler and the LLVM-based optimizer with Intel specific optimizations (oclopt). For the optimizer I have used regular O optimization levels (O1, O2, O3) which...
View ArticleIntel LLVM Optimizer Optimization Flags
Hi all,I'm using the Intel offline compiler and the LLVM-based optimizer with Intel specific optimizations (oclopt). For the optimizer I have used regular O optimization levels (O1, O2, O3) which...
View ArticleIntel LLVM Optimizer Optimization Flags
Hi all,I'm using the Intel offline compiler and the LLVM-based optimizer with Intel specific optimizations (oclopt). For the optimizer I have used regular O optimization levels (O1, O2, O3) which...
View ArticleIntel LLVM Optimizer Optimization Flags
Hi all,I'm using the Intel offline compiler and the LLVM-based optimizer with Intel specific optimizations (oclopt). For the optimizer I have used regular O optimization levels (O1, O2, O3) which...
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Is clBuildProgram needed in conjunction with clCreateProgramFromBinary?
Hi,While trying to develop a standalone for a prior question, I noticed that offline compilation seems to behave differently for CPU and GPU. Per the OpenCL spec, my understanding is that I should be...
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OpenCL Code Builder Deep Analysis error: "Cannot return a color for more than...
Deep Analysis returns the following error and shows an entirely blank "Execution Duration" tab:The remaining tabs are populated.I'm running a workgroup of 2688/224 global/local items which is one SIMD8...
View ArticleBroadwell HD 6000 significantly more efficient than Haswell HD 4600
I'm seeing a solid per-EU performance improvement on a pure integer math kernel. I'm comparing a 950 MHz 48 EU HD 6000 vs. a 1200 MHz 20 EU HD 4600. Both have similar DDR3 bandwidth.Adjusted for...
View ArticleDoes INDE API Trace feature create another OpenCL platform?
Hi,INDE API trace was working wonderfully for a few days and suddenly stopped returning any trace information. I started investigating and noticed that, when enabled, another Intel OpenCL platform...
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