Can I keep a kernel running all the time on Kaveri ?
On Kaveri, is it possible to launch a kernel once and keep it running all the time? Any help will be great appreciated~
View ArticleReuse of Kernel in aparapi / memoryleak ?
Hi, have I missed something how I can tell aparapi / openCL that I will use a given Kernel more than once, with other data? The thing is, I have written a Java Prog which uses aparapi to calculate...
View ArticleOcl debuggers
In the User's Guide there is a whole section on CodeXL, with very interesting points. There is another debugger, opencl-emu, for which I know very little. Is it any good? How does it compare to CodeXL?...
View ArticleProblem when install sdk 3.0
Hello guys recently I'm install the sdk3.0 but some problem occurs... when I tried to install the app sdk sample vit script in /opt/AMDAPPSDK-3.0-Beta/install.sh it shows the following error message Do...
View ArticleEvaluating workgroup reductions in OpenCL 2.0
I was comparing shared memory reductions with reductions based on the new workgroup reduction functions available in OpenCL 2.0. Though I believed the workgroup function would lead to even more...
View ArticleOpenCL in games on amd dual-graphics devices
Hello, what about opencl calculation of physics in games like Nvidia Physix on AMD, by OpenCL? To use discrete GPU in games for graphics, and integrated in APU GPU for physics?It will by userful for...
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Poor workgroup reduction function performance (OpenCL 2.0)
I had previously reported this but here I provide a test case for the examination of workgroup reduction function. Kernels perform a workgroup reduction in 3 ways:1) The classical one with shared...
View ArticleStack overflow in clBuildProgram on Catalyst 14.12 with R9 290
When I try to compile certain OpenCL code on a machine with R9 290 installed running a Catalyst 14.12 driver, the program crashes with stack overflow in amdocl64.dll when calling clBuildProgram.The...
View ArticleMissing a nibble in last writes of debug output
I am testing a thing which needs a fairly high amount of bytes. For this reason, I'm writing some bytes to a debug output and dumping them to disk.I've noticed however the last byte written (especially...
View ArticleBinary produced for Hawaii with CL_CONTEXT_OFFLINE_DEVICES_AMD is not working...
We ship our applications with a number of binaries for different GPUs. The binaries are produced by compiling source OpenCL files with clBuildProgram ("-fno-bin-source -fno-bin-llvmir -fno-bin-amdil...
View Articlevector-add program using SVM produces segement fault.
I've written a simple vector add program using SVM in APPSDK 3.0, but it reports segement falt. the following is the code, i kown it is long. but it's a simple opencl program, I've try my best to...
View ArticleOpenCL - GPU to GPU transfer
Hello,I am working on a DirectX 11 (might possibly port to other APIs) application utilizing multiple GPU's for rendering and I need a mechanism to exchenge data between them. Because Mantle is still...
View ArticleOpenCL API time duration
Hi everybody, I would have liked to ask you a question. I wrote and successfully compiled a quite complicated program (at least for me) with OpenCL 1.2 on a AMD GPU card equipped with 20 CU (actually I...
View ArticleDo any AMD cards support out-of-order opencl queues ?
I want to queue two kernels: first kernel is waiting for another event, and the second kernel is not.So, I would like the second kernel to execute first, if possible. Thanks.
View Articleundefined reference to SVM API while compiling to SVM binary search tree
Hello I following the steps in Read me to compile the sample code of SVM binary search tree but it shows the following message Linking CXX executable...
View ArticleReuse of Kernel in aparapi / memoryleak ?
Hi, have I missed something how I can tell aparapi / openCL that I will use a given Kernel more than once, with other data? The thing is, I have written a Java Prog which uses aparapi to calculate...
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What is the Size of GPU L2 cache for A10-7850k APU?
Hello, I read the slice "Introduction to Kaveri" and find that there is a L2 cache on GPU. It seems shared by all the 8 GPU cores. I wonder what size is...
View ArticleCalling OpenCL from a service leads to crash.
Hello. I want to be able to make a small operations from the windows service, using OpenCL. As i know, the from the AMD APP SDK 2.5 it is possible to use the OpenCL library in the Windows Service...
View ArticlePerformance varying on a m290x in crossfire
Hi, Was wondering if AMD devs have any insights into this observation: I've observed that running my benchmarks on GPU1 runs significantly faster than GPU0. I've noticed GPU0 can be 2 and sometimes 4...
View ArticleAMD OpenCL 2.0 with C++ static kernel extension?
Hi! I very much like that AMD has the C++ static kernel extension - this lets us use things like type traits and template specialization, which are major features of CUDA and lets us keep things...
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