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OpenCL info - a tool to dump OpenCL platform/device information
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copyright 2013 Jens Schwarzer (schwarzer@schwarzer.dk)

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This was tested on an Intel Core i5-3570K computer equipped with an NVIDIA GTX
660 graphics adapter. The computer was running Ubuntu 12.10 (g++ 4.7.2).

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Instructions for NVIDIA:

First install latest NVIDIA driver
(http://tech.sixcolumns.com/2012/11/nvidia-310-19-drivers-released-how-to-install-it-in-ubuntu-12-1012-04/):

  sudo add-apt-repository ppa:xorg-edgers/ppa
  sudo apt-get update
  sudo apt-get install nvidia-current nvidia-settings

Then install NVIDIA OpenCL development files
(http://pkgs.org/ubuntu-12.10/ubuntu-multiverse-amd64/nvidia-opencl-dev_4.2.9-1ubuntu1_amd64.deb.html)

  sudo apt-get install nvidia-opencl-dev

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Now we are ready to run the program:

  make
  ./opencl_info

and if success you should get something like:

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Number of platforms: 1
CL_PLATFORM_PROFILE: FULL_PROFILE
CL_PLATFORM_VERSION: OpenCL 1.1 CUDA 4.2.1
CL_PLATFORM_NAME: NVIDIA CUDA
CL_PLATFORM_VENDOR: NVIDIA Corporation
CL_PLATFORM_EXTENSIONS: cl_khr_byte_addressable_store cl_khr_icd cl_khr_gl_sharing cl_nv_compiler_options cl_nv_device_attribute_query cl_nv_pragma_unroll
Number of devices: 1
CL_DEVICE_TYPE: CL_DEVICE_TYPE_GPU
CL_DEVICE_VENDOR_ID: 4318
CL_DEVICE_MAX_COMPUTE_UNITS: 5
CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS: 3
CL_DEVICE_MAX_WORK_ITEM_SIZES: 1024 1024 64
CL_DEVICE_MAX_WORK_GROUP_SIZE: 1024
CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR: 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT: 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT: 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG: 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT: 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE: 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_HALF: 0
CL_DEVICE_NATIVE_VECTOR_WIDTH_CHAR: 1
CL_DEVICE_NATIVE_VECTOR_WIDTH_SHORT: 1
CL_DEVICE_NATIVE_VECTOR_WIDTH_INT: 1
CL_DEVICE_NATIVE_VECTOR_WIDTH_LONG: 1
CL_DEVICE_NATIVE_VECTOR_WIDTH_FLOAT: 1
CL_DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE: 1
CL_DEVICE_NATIVE_VECTOR_WIDTH_HALF: 0
CL_DEVICE_MAX_CLOCK_FREQUENCY: 1097
CL_DEVICE_ADDRESS_BITS: 32
CL_DEVICE_MAX_MEM_ALLOC_SIZE: 536690688
CL_DEVICE_IMAGE_SUPPORT: true
CL_DEVICE_MAX_READ_IMAGE_ARGS: 256
CL_DEVICE_MAX_WRITE_IMAGE_ARGS: 16
CL_DEVICE_IMAGE2D_MAX_WIDTH: 32768
CL_DEVICE_IMAGE2D_MAX_HEIGHT: 32768
CL_DEVICE_IMAGE3D_MAX_WIDTH: 4096
CL_DEVICE_IMAGE3D_MAX_HEIGHT: 4096
CL_DEVICE_IMAGE3D_MAX_DEPTH: 4096
CL_DEVICE_MAX_SAMPLERS: 32
CL_DEVICE_MAX_PARAMETER_SIZE: 4352
CL_DEVICE_MEM_BASE_ADDR_ALIGN: 4096
CL_DEVICE_SINGLE_FP_CONFIG: CL_FP_DENORM CL_FP_INF_NAN CL_FP_ROUND_TO_NEAREST CL_FP_ROUND_TO_ZERO CL_FP_ROUND_TO_INF CL_FP_FMA
CL_DEVICE_DOUBLE_FP_CONFIG: CL_FP_DENORM CL_FP_INF_NAN CL_FP_ROUND_TO_NEAREST CL_FP_ROUND_TO_ZERO CL_FP_ROUND_TO_INF CL_FP_FMA
CL_DEVICE_GLOBAL_MEM_CACHE_TYPE: CL_READ_WRITE_CACHE
CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE: 128
CL_DEVICE_GLOBAL_MEM_CACHE_SIZE: 81920
CL_DEVICE_GLOBAL_MEM_SIZE: 2146762752
CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE: 65536
CL_DEVICE_MAX_CONSTANT_ARGS: 9
CL_DEVICE_LOCAL_MEM_TYPE: CL_LOCAL
CL_DEVICE_LOCAL_MEM_SIZE: 49152
CL_DEVICE_ERROR_CORRECTION_SUPPORT: false
CL_DEVICE_HOST_UNIFIED_MEMORY: false
CL_DEVICE_PROFILING_TIMER_RESOLUTION: 1000
CL_DEVICE_ENDIAN_LITTLE: true
CL_DEVICE_AVAILABLE: true
CL_DEVICE_COMPILER_AVAILABLE: true
CL_DEVICE_EXECUTION_CAPABILITIES: CL_EXEC_KERNEL
CL_DEVICE_QUEUE_PROPERTIES: CL_QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE CL_QUEUE_PROFILING_ENABLE
CL_DEVICE_PLATFORM: 0x1bad570
CL_DEVICE_NAME: GeForce GTX 660
CL_DEVICE_VENDOR: NVIDIA Corporation
CL_DRIVER_VERSION: 313.09
CL_DEVICE_PROFILE: FULL_PROFILE
CL_DEVICE_VERSION: OpenCL 1.1 CUDA
CL_DEVICE_OPENCL_C_VERSION: OpenCL C 1.1
CL_DEVICE_EXTENSIONS: cl_khr_byte_addressable_store cl_khr_icd cl_khr_gl_sharing cl_nv_compiler_options cl_nv_device_attribute_query cl_nv_pragma_unroll  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_fp64
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Cheers :)