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Halcom
Journeyman III

OpenGL/OpenCL interop no cl_khr_gl_sharing with Radeon 5850

Hi,

i tried to write a little program with openGL-openCL interop. After a lot of reading i found that my platform/ device must support cl_khr_gl_sharing. But it doesnt do that.

How can i install this extension or how can i get it to work. I cant belief that my Radeon HD 5850 cant do this.

Here my clinfo:

 

Number of platforms: 1 Platform Profile: FULL_PROFILE Platform Version: OpenCL 1.1 AMD-APP-SDK-v2.4 (65 0.9) Platform Name: AMD Accelerated Parallel Proces sing Platform Vendor: Advanced Micro Devices, Inc. Platform Extensions: cl_khr_icd cl_amd_event_callbac k cl_amd_offline_devices cl_khr_d3d10_sharing Platform Name: AMD Accelerated Parallel Proces sing Number of devices: 2 Device Type: CL_DEVICE_TYPE_GPU Device ID: 4098 Max compute units: 18 Max work items dimensions: 3 Max work items[0]: 256 Max work items[1]: 256 Max work items[2]: 256 Max work group size: 256 Preferred vector width char: 16 Preferred vector width short: 8 Preferred vector width int: 4 Preferred vector width long: 2 Preferred vector width float: 4 Preferred vector width double: 0 Native vector width char: 16 Native vector width short: 8 Native vector width int: 4 Native vector width long: 2 Native vector width float: 4 Native vector width double: 0 Max clock frequency: 725Mhz Address bits: 32 Max memory allocation: 209715200 Image support: Yes Max number of images read arguments: 128 Max number of images write arguments: 8 Max image 2D width: 8192 Max image 2D height: 8192 Max image 3D width: 2048 Max image 3D height: 2048 Max image 3D depth: 2048 Max samplers within kernel: 16 Max size of kernel argument: 1024 Alignment (bits) of base address: 32768 Minimum alignment (bytes) for any datatype: 128 Single precision floating point capability Denorms: No Quiet NaNs: Yes Round to nearest even: Yes Round to zero: Yes Round to +ve and infinity: Yes IEEE754-2008 fused multiply-add: Yes Cache type: None Cache line size: 0 Cache size: 0 Global memory size: 838860800 Constant buffer size: 65536 Max number of constant args: 8 Local memory type: Scratchpad Local memory size: 32768 Kernel Preferred work group size multiple: 64 Error correction support: 0 Unified memory for Host and Device: 0 Profiling timer resolution: 1 Device endianess: Little Available: Yes Compiler available: Yes Execution capabilities: Execute OpenCL kernels: Yes Execute native function: No Queue properties: Out-of-Order: No Profiling : Yes Platform ID: 00000000018CB118 Name: Cypress Vendor: Advanced Micro Devices, Inc. Device OpenCL C version: OpenCL C 1.1 Driver version: CAL 1.4.1417 (VM) Profile: FULL_PROFILE Version: OpenCL 1.1 AMD-APP-SDK-v2.4 (65 0.9) Extensions: cl_amd_fp64 cl_khr_global_int32 _base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomi cs cl_khr_local_int32_extended_atomics cl_khr_3d_image_writes cl_khr_byte_addres sable_store cl_khr_gl_sharing cl_amd_device_attribute_query cl_amd_vec3 cl_amd_p rintf cl_amd_media_ops cl_amd_popcnt cl_khr_d3d10_sharing Device Type: CL_DEVICE_TYPE_CPU Device ID: 4098 Max compute units: 4 Max work items dimensions: 3 Max work items[0]: 1024 Max work items[1]: 1024 Max work items[2]: 1024 Max work group size: 1024 Preferred vector width char: 16 Preferred vector width short: 8 Preferred vector width int: 4 Preferred vector width long: 2 Preferred vector width float: 4 Preferred vector width double: 0 Native vector width char: 16 Native vector width short: 8 Native vector width int: 4 Native vector width long: 2 Native vector width float: 4 Native vector width double: 0 Max clock frequency: 2393Mhz Address bits: 64 Max memory allocation: 2147483648 Image support: Yes Max number of images read arguments: 128 Max number of images write arguments: 8 Max image 2D width: 8192 Max image 2D height: 8192 Max image 3D width: 2048 Max image 3D height: 2048 Max image 3D depth: 2048 Max samplers within kernel: 16 Max size of kernel argument: 4096 Alignment (bits) of base address: 1024 Minimum alignment (bytes) for any datatype: 128 Single precision floating point capability Denorms: Yes Quiet NaNs: Yes Round to nearest even: Yes Round to zero: Yes Round to +ve and infinity: Yes IEEE754-2008 fused multiply-add: No Cache type: Read/Write Cache line size: 64 Cache size: 32768 Global memory size: 3420995584 Constant buffer size: 65536 Max number of constant args: 8 Local memory type: Global Local memory size: 32768 Kernel Preferred work group size multiple: 1 Error correction support: 0 Unified memory for Host and Device: 1 Profiling timer resolution: 279 Device endianess: Little Available: Yes Compiler available: Yes Execution capabilities: Execute OpenCL kernels: Yes Execute native function: Yes Queue properties: Out-of-Order: No Profiling : Yes Platform ID: 00000000018CB118 Name: Intel(R) Core(TM)2 Quad CPU @ 2.40GHz Vendor: GenuineIntel Device OpenCL C version: OpenCL C 1.1 Driver version: 2.0 Profile: FULL_PROFILE Version: OpenCL 1.1 AMD-APP-SDK-v2.4 (65 0.9) Extensions: cl_khr_fp64 cl_amd_fp64 cl_khr_ global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int3 2_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_ khr_int64_extended_atomics cl_khr_byte_addressable_store cl_khr_gl_sharing cl_ex t_device_fission cl_amd_device_attribute_query cl_amd_vec3 cl_amd_media_ops cl_a md_popcnt cl_amd_printf cl_khr_d3d10_sharing

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5 Replies
Halcom
Journeyman III

I have ignored that the platform does not support cl_khr_gl_sharing, because the devices support this. My interop works fine.

But it have a a bad feeling to ignore this.

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akphysics
Adept I

It's under the device extensions...  And yes, your clinfo, despite being hard to read, lists it.

Extensions: cl_amd_fp64 cl_khr_global_int32 _base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomi cs cl_khr_local_int32_extended_atomics cl_khr_3d_image_writes cl_khr_byte_addres sable_store cl_khr_gl_sharing cl_amd_device_attribute_query cl_amd_vec3 cl_amd_p rintf cl_amd_media_ops cl_amd_popcnt cl_khr_d3d10_sharing

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I think this question is a good question.

For example in my Situation, i get only a very poor number of extensions, and don´t know why.

I get only this:

Platform_id: 5692B554

CL_PLATFORM_VERSION: OpenCL 1.1 AMD-APP (898.1)

CL_PLATFORM_EXTENSIONS:

cl_khr_icd

cl_amd_event_callback

cl_amd_offline_devices

cl_khr_d3d10_sharing

With my 5870 and the newest driver and so on. Have somebody a solution?

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Well, keep in mind that you have different types of extensions.  Platform extensions and per device extensions.  Run clinfo and see what you have listed per device.

Ahhh....

This could be the reason. I have had a short look into the khronos manpage after my post, and found something with device infos. So thanks to confirm this, before i have the time to look after it.

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