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Journeyman III


Machine A3850 fusion, running ubuntu 10.10 64 bit.  After intalling catalys, SDK, and building the samples, I get the following error when running SimpleGL

Error: clCreateContextFromType failed. Error code : CL_INVALID_GL_SHAREGROUP_REFERENCE_KHR

any suggestions ?


clinfo output for gpu

Number of platforms:                 1
  Platform Profile:                 FULL_PROFILE
  Platform Version:                 OpenCL 1.1 AMD-APP-SDK-v2.4 (595.10)
  Platform Name:                 AMD Accelerated Parallel Processing
  Platform Vendor:                 Advanced Micro Devices, Inc.
  Platform Extensions:                 cl_khr_icd cl_amd_event_callback cl_amd_offline_devices

  Platform Name:                 AMD Accelerated Parallel Processing
Number of devices:                 2
  Device Type:                     CL_DEVICE_TYPE_GPU
  Device ID:                     4098
  Max compute units:                 5
  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:                 600Mhz
  Address bits:                     32
  Max memory allocation:             134217728
  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:                 268435456
  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:                     0x7f32e8668800
  Name:                         BeaverCreek
  Vendor:                     Advanced Micro Devices, Inc.
  Driver version:                 CAL 1.4.1417
  Profile:                     FULL_PROFILE
  Version:                     OpenCL 1.1 AMD-APP-SDK-v2.4 (595.10)
  Extensions:                     cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_3d_image_writes cl_khr_byte_addressable_store cl_khr_gl_sharing cl_amd_device_attribute_query cl_amd_printf cl_amd_media_ops cl_amd_popcnt


1 Reply

Do you only have this one GPU in your system or any other discrete GPU also.

SimpleGL and other cl-gl samples are only supported when run on primary gpu.