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Please help with clBuildProgram crash / segmentation fault
Hi, probably more for 'driver support' forum, but I would like here as well.I have a problem with openCL program, clBuildProgram does segfault / crash with newer drivers. Please help me improve the...
View ArticleAccess violation in clBuildProgram
I have a source file that crashes deep inside amdocl.dll with an access violation when calling clBuildProgram. When I disable optimizations, clBuildProgram succeeds. The file also does not crash...
View ArticleOpenCL for mobile graphic cards
I'm trying to get familiar with OpenCL. Unfortunately, i only have a mobile product. In the beginning of the year, i just downloaded the latest CCC and i was able to create my own small "Hello World"...
View Articleshow used GPU memory
Hello, is it possible to show currently used / free GPU free memory either with aticonfig or any other tool? I'm using a HD7970 on Linux.
View ArticleclEnqueueCopyBuffer() COPY_BUFFER takes an incredibly long time on HD7970,...
I don't get it. My code runs on a machine with a HD7970 so much slower than on a second machine with a HD5970. I found out with CodeXL that it's due to a copy operation, which takes more than 100 times...
View ArticleMaximum memory allocation problem
There appears to be a bug limiting the maximum memory allocation to around 60% of device memory. According to this knowledge base...
View Articlemultithreading and OpenCL?
Since I've installed a dual-GPU graphics card today I'm wondering how to utilize both GPUs using two independent host threads. The problem is that the program crashes without any error output as soon...
View ArticleAPU: No uncached hostmemery when context is shared
Hi,I have an Trinity APU (A10-5800K) and would like to use both CPU and GPU in one context. When I use the GPU in a single context, I can specify buffers with CL_MEM_READ_ONLY | CL_MEM_ALLOC_HOST_PTR...
View ArticleAMD Math Libraries Open Sourced on Github
All, https://github.com/clMathLibraries/clBLAShttps://github.com/clMathLibraries/clFFTAMD has open sourced clBLAS and clFFT on github.Mailing lists have also been created! Check Kent's blog here:AMD...
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USE_HOST_PTR with dynamic array?
I have a piece of code that I'm trying to optimize for an APU that looks something like this: float* temp = new float[x]; // some size x determined at runtime// create/copy values into temp// sizeof *...
View ArticleBlender Cycles(Opencl on AMD GPUS)
Dear Opencl DeveloperWhy doesn't the AMD opencl compiler work with blender cycles?whenever i compile the blender cycles kernel, the system either crashes due to lack of memory, or takes too long to...
View ArticleDoes VCE support resolutions higher than 1920x1080?
Hello, I'm implementing real time AVC/H264 encoding of game play using OpenVideo encode, everything is working as intended on resolutions up to 1920x1080 but anything higher than that results in an...
View Articleglu.h is missing?
Hi, I am new to AMD openCL. I just installed AMD-APP-SDK-v2.7 on ubuntu 12.04. When I build the samples, the "GL/glu.h" is missing: Building build/debug/x86_64//BoxFilterGL.og++ -Wpointer-arith...
View ArticleXinerama stops OpenCL seeing my two GPUs
I have two 7950 in my Linux PC. #:~$ aticonfig --lsa * 0. 01:00.0 AMD Radeon HD 7900 Series 1. 07:00.0 AMD Radeon HD 7900 Series If I switch Xinerama on, then OpenCL can only see 1 gpu. Here is...
View ArticleNon-sudo install of APP SDK on linux?
I'd like to use OpenCL on the CPU of a large supercomputer with AMD Opteron running a Red Hat OS that meets the installation requirements. I do not have admin access to the machine. Also, support for...
View ArticleOpenGL/OpenCL: working with BMP-files (BGRA) and showing image (RGBA)
In some code I need to read in a BMP-file, show it via OpenGL, interact with OpenCL via the keyboard and write the resulting image to disk. My goal is to avoid conversions. According to the interwebs...
View ArticleCompilation error : expression must have arithmetic, enum, or pointer type
Hi, I have a compilation error :"expression must have arithmetic, enum, or pointer type" if (Li != (clSpectrum)(0.f)) ^But I don't know why ! The OpenCL spec tell that we can do this... even...
View Articleerror while mapping pinned memory
Hi forum, I am creating a pinned memory as follows , but i am getting the error code -36 . Any hint will be very helpful to get around this...
View ArticleOpenCL - OpenGL trouble to display image
Hi Everybody, I've developed a small application of the Harris corner detection on a video. At first I was displaying the result using OpenCV (as I use it also to read my video).Now I want to boost the...
View Articlecompiler bugs: __local memory unallocated, debug performance
Hello! I have encountered two rather large problems, which seem to root inside the compiler itself. I have been debugging kernel code after a major refactorization, and I could not find the source of...
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