Open Video Encoder API
we use Open video API, and we try to use some setting to limit the slice size: for that we use configCtrl.pictControl.encNumMBsPerSlice and configCtrl.pictControl.encNumSlicesPerFrame but it seems to...
View ArticleDlls from Catalyst driver left behind after uninstallation
I hope the fix will be in the next driver release, as you can't easily downgrade to an earlier Catalyst driver/APP runtime, when you use the Catalyst Installer/uninstaller you end up up with all the...
View ArticleGraph Primitives Library for OpenCL
I am trying to implement a Minimum Spanning Forest Algorithm in OpenCL. Though I know how to implement Kruskal's algorithm, it is sequential in nature, so I think Boruvka's algorithm or the Data...
View Article[BUG] clAmdBlas page 3-1
Another lda issue on page 3-1: self-reference. in lda Leading dimension of matrix A. See clAmdBlasSgemm() .
View ArticleVGPR usage question (code attached)
I have a simple test kernel which I compile in kernelanalyzer2. It says on Tahiti it will use 110 VGPR. I tried to put #pragma unroll 1 and it does not have any effect at all. Is there a known way to...
View ArticleAMD FFT, 2 Plans, 1 context
Howdy, I'm trying to do 2 sequential, out of place transforms. The first is a Real to Complex Hermitian Planar, the other from Complex Hermitian Planar back to Real. The general flow of the program...
View ArticleErrors in memtestCL when testing more then 3992Mb
My setup:Linux Ubuntu 12.10Sapphire Radeon Vapor-X HD 7970 GHZ OC 6GBAMD 13.2 driver and APP SDK 2.8 I would like to test memory on the card. If I run "memtestCL 3992 1" I have no errors. When I run...
View ArticleOpenCL compiler crashes, example with 2 line kernel
I have problems compiling my some of my kernels for AMD GPUs, no problems with NVDIA OpenCL. Used platform OpenCL 1.2 AMD-APP (1084.4) Juniper HD5700 Win7-64. Minimal kernel extracted from bigger one...
View ArticleProblems with Cat 12.10 and up and HD7xxx (and not only) GPUs
My app starts to produce invalid results if source CL file is compiled with Catalyst 12.10 and causes driver restarts if it compiled with Cat 12.11 beta 8.All this observed on HD7770 GPU. Looks like...
View ArticleProblem with memory in OpenCL 1.2
Hello, everyone!I have i great problem with memory on output from kernel.I use OpenCL 1.2 for parallel programming on CPU.As input I have an OpenCL buffer with sctructures ENNInput. Every ENNInput...
View ArticleGCN Instructions scheduling clarification
Hello All, Disclaimer: I am new to GPU programming (started on Tuesday but not to parrallel programing or SIMD programming (Connection Machine 16K 1 bit processors running in SIMD fashion... I am...
View ArticleWhat's wrong with this file?
THIS CODE IS FROM A PROGRAM CALLED BLENDER CYCLES...IT WORKS...BUT DOESN'T WORK WITH THE AMD OPENCL COMPILER,...IN THE BLENDER COMMUNITY SOME BELIEVE THAT THIS CODE IS PROGRAMMED USING CUDA SYNTAX,...
View Articlefglrx fails to load on false-positive switchable graphics TOSHIBA laptop
Hi! I decided to write to this forum because I have an issue that is driving me crazy. Only two months ago I bought a new TOSHIBA laptop, a Satellite L850-1PD PSKG8E-U05500UIT...
View ArticleSmall temporary arrays in OpenCL
Hi, Does OpenCL take advantage of the following techniques when using small local arrays?- On VLIW -> indexed_temp_arrays (x0[n]) (aka. R55[A0.x] indirect register addressing in ISA)- On GCN ->...
View Articlestreaming large datasets through the GPU
Hi all: This is my first dab at GPU computing. I am running on 64-bit Linux with 32GBmemory and an AMD 7770 GPU with 2GB memory. The data set is large, (28GB forthe largest mesh) and will be streamed...
View ArticleAMD for OpenCL GPGPU, NVIDIA for GPU on Linux?
I am investigating using AMD 7970 for a OpenCL compute engine, while maintaining my current nVIDIA graphics card for GPU rendering. I am using Linux, not Windows (ubuntu 12.10 64 bit to be specific,...
View ArticleProblem with memory in OpenCL 1.2
Hello, everyone!I have i great problem with memory on output from kernel.I use OpenCL 1.2 for parallel programming on CPU.As input I have an OpenCL buffer with sctructures ENNInput. Every ENNInput...
View ArticleOpenCL performance dropped down 12.10 >> 13.1
Hi everyone.I have updated today the AMD Catalist drivers to 13.1 and got 20% performance loss on my HD7970.Does anyone have the same experiance?Also which is the easiest way to rollback to 12,10?...
View ArticleGPU is not faster than CPU
Hi everyone, I created a kernel using OpenCL, but I do not see it run faster than CPU. Can I do anything to make it run faster? The code is here: int r[2800 + 1]; int i, k; int b, d; int c...
View ArticleAPP Profiler Command Line
Hi, I'm trying to use the AMD APP Profiler to profile an OpenCL application under linux, however the documentation for the command line interface appears to have gone walkies, as far as I can tell it...
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