Texture reads return garbage for CLImage2D [with minimal example]
Hello everyone, first I should say that this is a cross-post from http://www.khronos.org/message_boards/viewtopic.php?f=56&t=5456Since I didn't get an answer after two weeks I figured I could post...
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Asus Z9PE-D8 WS motherboard fails to boot with >6 GPUs
I'm currently trying to get up to 8 GPUs to work with the Asus Z9PE-D8 WS motherboard but have come across a blocking problem. It boots fine with 6 GPUs composed of three AMD Radeon HD 7990s (each...
View ArticleGPU Computing - # of GPUs supported
Issues with GPU support when using over 4 gpus. I currently have a desktop with 6 GPUs ( 3x HD 5970s ) in non-crossfire mode. Unfortunately, it seems that Windows 7 64bit only supports up to 4 GPUs. I...
View Articleproblems with clAmdFft
I tried clAmdFft on different platforms/devices, and get correct results on AMD GPUs but incorrect results on NVIDIA GPUs. Also, the results on CPUs are correct only when using Intel's OpenCL...
View ArticleUsing a single CPU core without pinning the process to a specific core
I am running my OpenCL program on a cluster. The cluster software prefers jobs to use a single CPU core so it can utilize the nodes effectively. I tried using device fission to restrict my code to run...
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OpenCL with quad watercooled Radeon 7990s
The cards finally arrived: These are the 'workstation edition' of the Powercolor 7990 Devil13; to the best of my knowledge we are the only customer to have these. Currently testing them with the...
View Articleopencl learning
hello.I'm new to opencl and i wish start a plane of study on it.I know opengl and shader and a little of cuda, but it's not open then i'm wish migrate to opencl.What are some good books or some...
View ArticleNext version of AMD APP SDK?
Is there any plans to release next version of SDK anytime soon?
View ArticleclBuildProgram error with large kernel
I'm working on a program with a rather large kernel, about 400 lines of code, and when I try to compile it from source it doesn't always compile. To give some more technical background I'm working on...
View ArticleFFT Sample code performance on CPU and GPU
Hi, I am using AMD Radeon HD 6770 Graphics Card and installed AMD SDKv2.7 & Catalyst Driver12.8 on RHEL6.0 . While running the "FFT" sample program on cpu device (Intel Core2 Duo) and...
View ArticleOpenCL kernel optimizing
So I recently started using OpenCL to do calculations, and while it is already a lot faster then the same code on CPU I'm still a bit worried about performance. Certainly after reading about coalescent...
View ArticleBufferBandwidth Test on FirePro-8750
Hi, The output of BufferBandwidth on FirePro-8750 is: Selected Platform Vendor : Advanced Micro Devices, Inc.Device 0 : ATI RV770Expected Error: Device does not support...
View ArticleVery simple kernel crashes compiler
Crash occurs in application code and Kernel Analyzer It's a bit suprising, but the simple one line kernel in the code window crashs during compile in both application code and in the Kernel Analyzer....
View ArticleFloating point operations difference between CPU and GPU
Hallo,I have an OpenCL kernel that implements a dot product between two float arrays. The first is an array of size*n elements and the second is an array of n elements.This is a sample code...
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GCN ISA Assembler
Hi All I'm proudly presenting the first preview release of my GCN ISA Assembler / AMD_IL errorchecker / scripter IDE featuring syntax_highlighting and code_insight (ctrl+space) for fast assembly...
View ArticleCompiler crash on a simple kernel
Hello, All I have a simple kernel which makes open cl api to crash on clBuildProgram(); i call it lioke this:clBuildProgram(program, 1, device, 0, NULL, NULL); // <- crash occures inside this call....
View ArticleProblem building program
Hello, I've been having a problem with a large kernel I wrote. I can run it from Visual Studio or from the command line. However, if I try to run it from gDebugger of CodeAnalyst, when clBuildProgram...
View ArticleOpenCL 1.2 "cl_khr_dx9_media_sharing" bugs
Hey guys, trying to make the "cl_khr_dx9_media_sharing" OpenCL 1.2 extension work. The latest AMD drivers (12.11 beta) generally support this extension and it works ok, but there are a couple of bugs:...
View ArticleBug in OpenCL (GCN only)
Hello,I’ve got the working OpenCL kernel that calculates SHA-256 hash of VERY long string and it takes too much time. I decided to split this kernel into several parts and save the intermediate results...
View ArticleNext version of AMD APP SDK?
Is there any plans to release next version of SDK anytime soon?
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