Assistance with problem related to cl_khr_gl_sharing
I am the author of an opencl solar system simulation which I recently open sourcedhttp://sourceforge.net/projects/openclsolarsyst/ A video of it running on nvidia hardware is here...
View ArticleError handling mmap: Memory leak and "GART error"
We are trying to process images from a framegrabber without copying them to an intermediate buffer. The data appears on a mmaped buffer. Every time we use the mmaped buffer on OpenCL we are getting an...
View Article4X HD7970 not working
Hi! My institute has invested in 'small' GPU cluster based on Radeon GPUs, all in hopes of doing rough OpenCL computations. I have installed Ubuntu 13.04 and Ubuntu 12.10, both show the same faulty...
View ArticleCan local memory for a given work group can be used in a static way ?
Hi, I am trying to see (on my HD7950 GPU) how local memory on a same workgroup behaves accross kernel executions Goal is to use local memories inside compute units to retain information accross kernel...
View ArticleAMD 79xx GPUs skip kernel execution for certain indices
I'm experiencing a strange problem that occurs on 7950 and 7970 cards, but does not happen on 5850 and 6870. My application processes images in tiles. For each tile a series of OpenCL kernels is...
View ArticleWhich GPU should we buy?
Hi, we are doing some research about the GPU. We will try to implement some algorithms on the GPU. We do not know yet if the algorithmsreally fit for the GPU architecture. I did some research back in...
View ArticleOpenCL for 7950 on Win XP
OpenCL for 7950 on Win XP I have an AMD Readon 7950 graphics card and the windows XP 32-bit operating system. I would like to use OpenCL. I understand that an Accelerated Parallel Processing (APP)...
View ArticleQt5.1 + multi-device OpenCL-GL interop
Hi everyone! I took on a nice project that uses Qt5.1 alpha and there are problems with OpenCL-GL interop. Let me not repeat myself, but simply link the Qt forum post I made there. All remakrs are...
View ArticleSubstitute for atomic_inc
Hi,I have an ATI Firepro V4800 graphics card which does not support cl_khr_int64_base_atomics. I am trying to adapt the RadixSort algo given in the SDK Examples for long integers. The algo uses...
View ArticleGlobal synchronization inside the kernel
Hi, I'm facing with the following problem: I have to use LDS for a relatively long time and also I need to gather/scatter data across all the LDS memory.Scheduling more than one kernel is not an option...
View ArticleWorkflow of OpenCL compiler at GCN platform
Hi, I've been trying to figure out way to execute from .isa file of kernel. However, I'm not exactly sure, if there is some connection between .il file and .isa.I have noted that .isa files are...
View ArticleHello, just starting in OpenCL GPGPU for Neural Nets
Hi,I would like to make sure I'm starting on the right foot as I build my workstation and get developing. First the hardware: - Supermicro 7046GT-TRF X8DTG-QF workstation. Last gen pcie 2.0 GPU...
View ArticleAssistance with problem related to cl_khr_gl_sharing
I am the author of an opencl solar system simulation which I recently open sourcedhttp://sourceforge.net/projects/openclsolarsyst/ A video of it running on nvidia hardware is here...
View ArticleOpenCL elf kernel binary
Hi, I tried doing cat <kernel binary>, and I could see, AMDIL instruction set, however AMD isa was machine coded. Now, I can replace AMDIL part, with manually modified another IL code. and it...
View ArticleKabini GPU double-precision
Hi. Are there any specs for fp64 support on Kabini's GPU in terms of speed? A slide posted at Anandtech lists 8 fp64 ADDs per cycle per CU which looks fine. However, they also list 4 DP FMAs every 16...
View ArticleAccess Violation when clGetPlatformIDs is called
I downloaded AMD APP SDK 2.8 for win7 64bit(AMD-APP-SDK-v2.8-Windows-64.exe), and the 9.003 driver for a FirePro W7000 card from AMD website. When I run the samples from AMD APP SDK using VS 2010, for...
View ArticleCALtargetEnum
Well I need a newer "list" of CAL-target-IDs. Inside current AMD_Accelerated_Parallel_Processing_OpenCL_Programming_Guide.pdf at page 230 is: typedef enum CALtargetEnum {CAL_TARGET_600 = 0, /**<...
View ArticleSubstitute for atomic_inc
Hi,I have an ATI Firepro V4800 graphics card which does not support cl_khr_int64_base_atomics. I am trying to adapt the RadixSort algo given in the SDK Examples for long integers. The algo uses...
View ArticleBitwise OR operation failing when compiling for Tahiti GPU
Hi, I am currently coding part of MD5 algorithm inside a kernel code and I encountered a strange issue and even if I found some workaround for that, I would like to understand the rootcause... I tried...
View ArticleOpenCL bug with HD 7790 (Bonaire)
Hello, I am hitting an odd bug running one of my OpenCL kernels on a new HD 7790. This is a kernel that I've verified on a HD 7770, and also on some Fermi and Kepler cards also. After a lot of...
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