OpenCL 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 ArticleCL resources
Very new to openCL. While running an openCL application, I get: [!] CL Error (-34, /home/nikos/work/gr-fosphor/lib/fosphor/cl.c:461): Unable to share waterfall texture into OpenCL context In reference...
View ArticleCan't get any opencl 2.0 samples run from the latest 3.0 SDK.
The GPU is a R9 270X with the just released driver (14.501.1003-141120a-178000C, 14.12) on Windows 8.1.When I run the SDK samples:Platform 0 : Advanced Micro Devices, Inc.Platform 1 : Intel(R)...
View ArticleclEnqueueReadBufferRect/clEnqueueWriteBufferRect are broken in 14.12 driver
clEnqueueReadBufferRect/clEnqueueWriteBufferRect worked with no problems in 14.9 and 14.4, but now in 14.12 they are completely broken on HD6950 / Win7 x64.Can anyone else confirm this? Even trivial...
View ArticleOCL C++ wrapper 1.2.6v
Will AMD include in its APP SDK last version (1.2.6_ of OpenCL C++ wrapper (currently there is 1.2.4 version included)? It's no that it bothers me, but I'm curious. Maybe there is something wrong with...
View ArticleNot fully updated optimization guide for OpenCL 2.0
Along with the OpenCL SDK 3.0, a new release of the APP OpenCL Optimization Guide was released (December 2014). However, it is not fully updated. For instance, only the Southern Islands device...
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OpenCL 2.0 CPU support
A quick question / clarification on the status of CPU support for OpenCL 2.0: I installed the AMD APP SDK 3.0 beta, assuming that it brings OpenCL 2.0 support to CPUs as well. The previous versions...
View ArticleUpdated AMD OpenCL user’s guide – provide your feedback
Recently, we re-purposed the AMD OpenCL programmer’s guide into two documents: The AMD OpenCL user’s guide, containing relevant OpenCL information for basic users The AMD OpenCL optimization guide,...
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JPEG decoding is broken with Catalyst driver
I just confirmed that installing Catalyst driver (Omega as well as older versions) breaks Windows Photo Viewer. Uninstalling the driver completely using amdcleanuputility.exe restores the Windows Photo...
View ArticleGPGPU Benefit with 14.12 Driver?
Should we be expecting any sort of performance benefit with OpenCL applications when using the new 14.12 driver? (Particularly in the Linux environment) There is a bunch of marketing out there about...
View ArticleDelays between kernel executions
When running the application timeline trace (via CodeXL 1.5.xxx) it shows that there are huge gaps between the kernel executions (e.g., 10-12 ms). I am working on a real-time application where we're...
View Articleopencl 2.0 borked for the second gpu on a 295x2 ?
I am not able to run the opencl 2.0 samples on a 295x2, for the SVMBinaryTreeSearch, i get an unsupported device errorHawaii Device ID is 008C0D38Hawaii Device ID is 039B99E0Expected Error: Unsupported...
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Exception calling clBuildProgram on my kernel
This must be karma My system:Windows 7 64 bits with HD7700 cardLatest 14.9.2 Beta Driver When I try to compile the following kernel with clBuildProgram, I get the following exception: Unhandled...
View Articleclinfo reporting no GPU on AMD A10-7850K after Catalyst driver upgrade
I've installed the Catalyst driver (fglrx-14.501.1003) using both modes on Ubuntu 14.04.1. The fglrx driver loads at boot, but clinfo only reports the CPU as present. Any suggestions? Output from dmesg...
View ArticleSPIR and SVM?
Is it possible to use SVM with SPIR kernels? I've been trying various versions of the attached code, but can't seem to get anything to work.
View ArticleclEnqueueWriteBufferRect does not work when region width is not equal to src...
I have already reported this problem in an earlier post: http://devgurus.amd.com/thread/160312 and the error has been fixed in Catalyst 13.4.However, the error seems to be reintroduced in Catalyst...
View ArticleAMD APP SDK 3.0 Beta now Available
The AMD APP SDK 3.0 Beta is available. Having explored the potential of OpenCL 2.0 via provisional OpenCL 2.0 drivers and our OpenCL 2.0 Demystified blog series, you can now dive deep with AMD’s...
View ArticleFine-grained SVM
My understanding is that currently (as of Catalyst Omega 2014) fine-grained SVM is only supported on AMD Kaveri and only on Linux?
View ArticleNot fully updated optimization guide for OpenCL 2.0
Along with the OpenCL SDK 3.0, a new release of the APP OpenCL Optimization Guide was released (December 2014). However, it is not fully updated. For instance, only the Southern Islands device...
View ArticleInstalling only fglrx-core deb result in segfault when trying running OpenCL...
I saw that new omega driver produce new package fglrx-core. This is AMD way to split driver for OpenCL so there is no need to run Xserver anymore. Which is almost there but there are some hiccups....
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