Command-line tool to display information about available OpenCL platforms and devices.
Created for OpenCL Extension for VS Code.
- cmake
mkdir build && cd build
cmake ..
make
Input oclinfo to display help message:
OVERVIEW:
Get info about OpenCL platforms/devices
USAGE:
./oclinfo [option]
OPTIONS:
-h, --help Show this help message
-np,--num-platforms Show number of available platforms
-nd,--num-devices Show number of available devices
-ps,--platforms Show info about platforms
-ds,--devices Show info about devices
-pds,--platforms-devices Show info about platforms and devices
-cl,--cl-names Show platform/device fields with cl names
Input oclinfo -pds to display full info about platforms/devices, e.g.:
Platform(s): 1
Platform # 1
============
Platform name: Apple
OpenCL version: OpenCL 1.2 (May 26 2017 12:59:48)
Platform vendor: Apple
OpenCL profile: FULL_PROFILE
Extensions: cl_APPLE_SetMemObjectDestructor cl_APPLE_ContextLoggingFunctions cl_APPLE_clut cl_APPLE_query_kernel_names cl_APPLE_gl_sharing cl_khr_gl_event
Device(s): 2
Device # 1
----------
Address space size: 64
Device is available: Yes
Compiler is available: Yes
Double precision floating-point capability: denorms are supported; INF and NaNs are supported; round to nearest even rounding mode supported; round to zero rounding mode supported; round to +ve and -ve infinity rounding modes supported; IEEE754-2008 fused multiply-add is supported
Little endian device: Yes
Error correction support: No
Execution capabilities: The OpenCL device can execute OpenCL kernels; The OpenCL device can execute native kernels
Extensions: cl_APPLE_SetMemObjectDestructor cl_APPLE_ContextLoggingFunctions cl_APPLE_clut cl_APPLE_query_kernel_names cl_APPLE_gl_sharing cl_khr_gl_event cl_khr_fp64 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_byte_addressable_store cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_3d_image_writes cl_khr_image2d_from_buffer cl_APPLE_fp64_basic_ops cl_APPLE_fixed_alpha_channel_orders cl_APPLE_biased_fixed_point_image_formats cl_APPLE_command_queue_priority
Size of global memory cache (in bytes): 64
Type of global memory cache: Read-Write cache
Size of global memory cache line (in bytes): 3145728
Size of global device memory (in bytes): 8589934592
Half precision floating-point capability: round to zero rounding mode supported; round to +ve and -ve infinity rounding modes supported
Images are supported: Yes
Max height of 2D image (in pixels): 8192
Max width of 2D image (in pixels): 8192
Max depth of 3D image (in pixels): 2048
Max height of 3D image (in pixels): 2048
Max width of 3D image (in pixels): 2048
Size of local memory arena (in bytes): 32768
Type of local memory: Global memory storage
Maximum configured clock frequency (in MHz): 2600
The number of parallel compute cores: 4
Max number of __constant arguments in a kernel: 8
Max size of a constant buffer allocation (in bytes): 65536
Max size of memory object allocation (in bytes): 2147483648
Max size of kernel arguments (in bytes): 4096
Max number of simultaneously read image objects: 128
Maximum number of samplers: 16
Maximum number of work-items in a work-group: 1024
Maximum dimensions that specify work-item IDs: 3
Maximum number of work-items in each dimension: 1024, 1, 1
Max number of simultaneously written image objects: 8
Alignment of the base address of any allocated memory object (in bits): 1024
Minimum alignment for any data type (in bytes): 128
Device name: Intel(R) Core(TM) i5-4278U CPU @ 2.60GHz
Preferred native vector width size for char type: 16
Preferred native vector width size for short type: 8
Preferred native vector width size for int type: 4
Preferred native vector width size for long type: 2
Preferred native vector width size for float type: 4
Preferred native vector width size for double type: 2
OpenCL profile: FULL_PROFILE
Resolution of device timer (in nanoseconds): 1
Supported command-queue properties: The profiling of commands is enabled
Single precision floating-point capability: denorms are supported; INF and NaNs are supported; round to nearest even rounding mode supported; round to zero rounding mode supported; round to +ve and -ve infinity rounding modes supported; IEEE754-2008 fused multiply-add is supported
OpenCL device type: CPU
Vendor name: Intel
Device vendor identifier: 4294967295
OpenCL version: OpenCL 1.2
OpenCL software driver version: 1.1
Device # 2
----------
Address space size: 64
Device is available: Yes
Compiler is available: Yes
Double precision floating-point capability:
Little endian device: Yes
Error correction support: No
Execution capabilities: The OpenCL device can execute OpenCL kernels
Extensions: cl_APPLE_SetMemObjectDestructor cl_APPLE_ContextLoggingFunctions cl_APPLE_clut cl_APPLE_query_kernel_names cl_APPLE_gl_sharing cl_khr_gl_event 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_byte_addressable_store cl_khr_image2d_from_buffer cl_khr_gl_depth_images cl_khr_depth_images cl_khr_3d_image_writes
Size of global memory cache (in bytes): 0
Type of global memory cache: None
Size of global memory cache line (in bytes): 0
Size of global device memory (in bytes): 1610612736
Half precision floating-point capability: round to zero rounding mode supported; round to +ve and -ve infinity rounding modes supported
Images are supported: Yes
Max height of 2D image (in pixels): 16384
Max width of 2D image (in pixels): 16384
Max depth of 3D image (in pixels): 2048
Max height of 3D image (in pixels): 2048
Max width of 3D image (in pixels): 2048
Size of local memory arena (in bytes): 65536
Type of local memory: Local memory storage
Maximum configured clock frequency (in MHz): 1100
The number of parallel compute cores: 40
Max number of __constant arguments in a kernel: 8
Max size of a constant buffer allocation (in bytes): 65536
Max size of memory object allocation (in bytes): 402653184
Max size of kernel arguments (in bytes): 1024
Max number of simultaneously read image objects: 128
Maximum number of samplers: 16
Maximum number of work-items in a work-group: 512
Maximum dimensions that specify work-item IDs: 3
Maximum number of work-items in each dimension: 512, 512, 512
Max number of simultaneously written image objects: 8
Alignment of the base address of any allocated memory object (in bits): 1024
Minimum alignment for any data type (in bytes): 128
Device name: Iris
Preferred native vector width size for char type: 1
Preferred native vector width size for short type: 1
Preferred native vector width size for int type: 1
Preferred native vector width size for long type: 1
Preferred native vector width size for float type: 1
Preferred native vector width size for double type: 0
OpenCL profile: FULL_PROFILE
Resolution of device timer (in nanoseconds): 80
Supported command-queue properties: The profiling of commands is enabled
Single precision floating-point capability: INF and NaNs are supported; round to nearest even rounding mode supported; round to zero rounding mode supported; round to +ve and -ve infinity rounding modes supported; IEEE754-2008 fused multiply-add is supported
OpenCL device type: GPU
Vendor name: Intel
Device vendor identifier: 16925952
OpenCL version: OpenCL 1.2
OpenCL software driver version: 1.2(Jun 15 2017 18:45:12)
To display standart names with CL_ prefix input oclinfo -cl -pds:
Platform(s): 1
Platform # 1
============
CL_PLATFORM_NAME: Apple
CL_PLATFORM_VERSION: OpenCL 1.2 (May 26 2017 12:59:48)
CL_PLATFORM_VENDOR: Apple
CL_PLATFORM_PROFILE: FULL_PROFILE
CL_PLATFORM_EXTENSIONS: cl_APPLE_SetMemObjectDestructor cl_APPLE_ContextLoggingFunctions cl_APPLE_clut cl_APPLE_query_kernel_names cl_APPLE_gl_sharing cl_khr_gl_event
Device(s): 2
Device # 1
----------
CL_DEVICE_ADDRESS_BITS: 64
CL_DEVICE_AVAILABLE: CL_TRUE
CL_DEVICE_COMPILER_AVAILABLE: CL_TRUE
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_ENDIAN_LITTLE: CL_TRUE
CL_DEVICE_ERROR_CORRECTION_SUPPORT: CL_FALSE
CL_DEVICE_EXECUTION_CAPABILITIES: CL_EXEC_KERNEL; CL_EXEC_NATIVE_KERNEL
CL_DEVICE_EXTENSIONS: cl_APPLE_SetMemObjectDestructor cl_APPLE_ContextLoggingFunctions cl_APPLE_clut cl_APPLE_query_kernel_names cl_APPLE_gl_sharing cl_khr_gl_event cl_khr_fp64 cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomicscl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_byte_addressable_store cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_3d_image_writes cl_khr_image2d_from_buffer cl_APPLE_fp64_basic_ops cl_APPLE_fixed_alpha_channel_orderscl_APPLE_biased_fixed_point_image_formats cl_APPLE_command_queue_priority
CL_DEVICE_GLOBAL_MEM_CACHE_SIZE: 64
CL_DEVICE_GLOBAL_MEM_CACHE_TYPE: CL_READ_WRITE_CACHE
CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE: 3145728
CL_DEVICE_GLOBAL_MEM_SIZE: 8589934592
CL_DEVICE_HALF_FP_CONFIG: CL_FP_ROUND_TO_ZERO; CL_FP_ROUND_TO_INF
CL_DEVICE_IMAGE_SUPPORT: CL_TRUE
CL_DEVICE_IMAGE2D_MAX_HEIGHT: 8192
CL_DEVICE_IMAGE2D_MAX_WIDTH: 8192
CL_DEVICE_IMAGE3D_MAX_DEPTH: 2048
CL_DEVICE_IMAGE3D_MAX_HEIGHT: 2048
CL_DEVICE_IMAGE3D_MAX_WIDTH: 2048
CL_DEVICE_LOCAL_MEM_SIZE: 32768
CL_DEVICE_LOCAL_MEM_TYPE: CL_GLOBAL
CL_DEVICE_MAX_CLOCK_FREQUENCY: 2600
CL_DEVICE_MAX_COMPUTE_UNITS: 4
CL_DEVICE_MAX_CONSTANT_ARGS: 8
CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE: 65536
CL_DEVICE_MAX_MEM_ALLOC_SIZE: 2147483648
CL_DEVICE_MAX_PARAMETER_SIZE: 4096
CL_DEVICE_MAX_READ_IMAGE_ARGS: 128
CL_DEVICE_MAX_SAMPLERS: 16
CL_DEVICE_MAX_WORK_GROUP_SIZE: 1024
CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS: 3
CL_DEVICE_MAX_WORK_ITEM_SIZES: 1024, 1, 1
CL_DEVICE_MAX_WRITE_IMAGE_ARGS: 8
CL_DEVICE_MEM_BASE_ADDR_ALIGN: 1024
CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE: 128
CL_DEVICE_NAME: Intel(R) Core(TM) i5-4278U CPU @ 2.60GHz
CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR: 16
CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT: 8
CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT: 4
CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG: 2
CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT: 4
CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE: 2
CL_DEVICE_PROFILE: FULL_PROFILE
CL_DEVICE_PROFILING_TIMER_RESOLUTION: 1
CL_DEVICE_QUEUE_PROPERTIES: CL_QUEUE_PROFILING_ENABLE
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_TYPE: CL_DEVICE_TYPE_CPU
CL_DEVICE_VENDOR: Intel
CL_DEVICE_VENDOR_ID: 4294967295
CL_DEVICE_VERSION: OpenCL 1.2
CL_DRIVER_VERSION: 1.1
Device # 2
----------
CL_DEVICE_ADDRESS_BITS: 64
CL_DEVICE_AVAILABLE: CL_TRUE
CL_DEVICE_COMPILER_AVAILABLE: CL_TRUE
CL_DEVICE_DOUBLE_FP_CONFIG:
CL_DEVICE_ENDIAN_LITTLE: CL_TRUE
CL_DEVICE_ERROR_CORRECTION_SUPPORT: CL_FALSE
CL_DEVICE_EXECUTION_CAPABILITIES: CL_EXEC_KERNEL
CL_DEVICE_EXTENSIONS: cl_APPLE_SetMemObjectDestructor cl_APPLE_ContextLoggingFunctions cl_APPLE_clut cl_APPLE_query_kernel_names cl_APPLE_gl_sharing cl_khr_gl_event 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_byte_addressable_store cl_khr_image2d_from_buffer cl_khr_gl_depth_images cl_khr_depth_images cl_khr_3d_image_writes
CL_DEVICE_GLOBAL_MEM_CACHE_SIZE: 0
CL_DEVICE_GLOBAL_MEM_CACHE_TYPE: CL_NONE
CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE: 0
CL_DEVICE_GLOBAL_MEM_SIZE: 1610612736
CL_DEVICE_HALF_FP_CONFIG: CL_FP_ROUND_TO_ZERO; CL_FP_ROUND_TO_INF
CL_DEVICE_IMAGE_SUPPORT: CL_TRUE
CL_DEVICE_IMAGE2D_MAX_HEIGHT: 16384
CL_DEVICE_IMAGE2D_MAX_WIDTH: 16384
CL_DEVICE_IMAGE3D_MAX_DEPTH: 2048
CL_DEVICE_IMAGE3D_MAX_HEIGHT: 2048
CL_DEVICE_IMAGE3D_MAX_WIDTH: 2048
CL_DEVICE_LOCAL_MEM_SIZE: 65536
CL_DEVICE_LOCAL_MEM_TYPE: CL_LOCAL
CL_DEVICE_MAX_CLOCK_FREQUENCY: 1100
CL_DEVICE_MAX_COMPUTE_UNITS: 40
CL_DEVICE_MAX_CONSTANT_ARGS: 8
CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE: 65536
CL_DEVICE_MAX_MEM_ALLOC_SIZE: 402653184
CL_DEVICE_MAX_PARAMETER_SIZE: 1024
CL_DEVICE_MAX_READ_IMAGE_ARGS: 128
CL_DEVICE_MAX_SAMPLERS: 16
CL_DEVICE_MAX_WORK_GROUP_SIZE: 512
CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS: 3
CL_DEVICE_MAX_WORK_ITEM_SIZES: 512, 512, 512
CL_DEVICE_MAX_WRITE_IMAGE_ARGS: 8
CL_DEVICE_MEM_BASE_ADDR_ALIGN: 1024
CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE: 128
CL_DEVICE_NAME: Iris
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: 0
CL_DEVICE_PROFILE: FULL_PROFILE
CL_DEVICE_PROFILING_TIMER_RESOLUTION: 80
CL_DEVICE_QUEUE_PROPERTIES: CL_QUEUE_PROFILING_ENABLE
CL_DEVICE_SINGLE_FP_CONFIG: CL_FP_INF_NAN; CL_FP_ROUND_TO_NEAREST; CL_FP_ROUND_TO_ZERO; CL_FP_ROUND_TO_INF; CL_FP_FMA
CL_DEVICE_TYPE: CL_DEVICE_TYPE_GPU
CL_DEVICE_VENDOR: Intel
CL_DEVICE_VENDOR_ID: 16925952
CL_DEVICE_VERSION: OpenCL 1.2
CL_DRIVER_VERSION: 1.2(Jun 15 2017 18:45:12)