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01_devices.md

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About 01_devices.py

Known Issue

While get device name of Intel Core i5 3470 on Win10, 8 reduntant spaces appear at beginning of the string.

d.get_info(cl.device_info.NAME)
"        Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz"

Do strip() for device name is better.

d.get_info(cl.device_info.NAME).strip()

Output

Win10 / Intel Core i5 7200U + HD Graphics 620

[0] Intel(R) OpenCL / OpenCL 2.1
|- [0:0] GPU / Intel(R) HD Graphics 620
   |- Max Compute Units: 24
   |- Max Work Group Size: 256
   |- Max Work Item Dimensions: 3
   |- Max Work Item Size: [256, 256, 256]
   |- Max Local Memory Size: 64KB
   |- Max Global Memory Size: 6512MB
   |- Max Clock Frequency: 1000MHz
   |- Extensions:
      |- cl_intel_accelerator
      |- cl_intel_advanced_motion_estimation
      |- cl_intel_d3d11_nv12_media_sharing
      |- cl_intel_device_side_avc_motion_estimation
      |- cl_intel_driver_diagnostics
      |- cl_intel_dx9_media_sharing
      |- cl_intel_media_block_io
      |- cl_intel_motion_estimation
      |- cl_intel_planar_yuv
      |- cl_intel_packed_yuv
      |- cl_intel_required_subgroup_size
      |- cl_intel_simultaneous_sharing
      |- cl_intel_subgroups
      |- cl_intel_subgroups_short
      |- cl_khr_3d_image_writes
      |- cl_khr_byte_addressable_store
      |- cl_khr_d3d10_sharing
      |- cl_khr_d3d11_sharing
      |- cl_khr_depth_images
      |- cl_khr_dx9_media_sharing
      |- cl_khr_fp16
      |- cl_khr_fp64
      |- cl_khr_gl_depth_images
      |- cl_khr_gl_event
      |- cl_khr_gl_msaa_sharing
      |- cl_khr_global_int32_base_atomics
      |- cl_khr_global_int32_extended_atomics
      |- cl_khr_gl_sharing
      |- cl_khr_icd
      |- cl_khr_image2d_from_buffer
      |- cl_khr_local_int32_base_atomics
      |- cl_khr_local_int32_extended_atomics
      |- cl_khr_mipmap_image
      |- cl_khr_mipmap_image_writes
      |- cl_khr_spir
      |- cl_khr_subgroups
      |- cl_khr_throttle_hints
|- [0:1] CPU / Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz
   |- Max Compute Units: 4
   |- Max Work Group Size: 8192
   |- Max Work Item Dimensions: 3
   |- Max Work Item Size: [8192, 8192, 8192]
   |- Max Local Memory Size: 32KB
   |- Max Global Memory Size: 16302MB
   |- Max Clock Frequency: 2500MHz
   |- Extensions:
      |- cl_khr_icd
      |- 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_depth_images
      |- cl_khr_3d_image_writes
      |- cl_intel_exec_by_local_thread
      |- cl_khr_spir
      |- cl_khr_dx9_media_sharing
      |- cl_intel_dx9_media_sharing
      |- cl_khr_d3d11_sharing
      |- cl_khr_gl_sharing
      |- cl_khr_fp64
      |- cl_khr_image2d_from_buffer

Win10 / Intel Core i5 3470 + HD Graphics 2500

[0] Intel(R) OpenCL / OpenCL 1.2
|- [0:0] CPU / Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz
   |- Max Compute Units: 4
   |- Max Work Group Size: 1024
   |- Max Work Item Dimensions: 3
   |- Max Work Item Size: [1024, 1024, 1024]
   |- Max Local Memory Size: 32KB
   |- Max Global Memory Size: 16064MB
   |- Max Clock Frequency: 3200MHz
   |- Extensions:
      |- cl_khr_fp64
      |- cl_khr_icd
      |- 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_intel_printf
      |- cl_ext_device_fission
      |- cl_intel_exec_by_local_thread
      |- cl_khr_gl_sharing
      |- cl_intel_dx9_media_sharing
      |- cl_khr_dx9_media_sharing
      |- cl_khr_d3d11_sharing
|- [0:1] GPU / Intel(R) HD Graphics 2500
   |- Max Compute Units: 6
   |- Max Work Group Size: 256
   |- Max Work Item Dimensions: 3
   |- Max Work Item Size: [256, 256, 256]
   |- Max Local Memory Size: 64KB
   |- Max Global Memory Size: 1246MB
   |- Max Clock Frequency: 1100MHz
   |- Extensions:
      |- cl_intel_d3d11_nv12_media_sharing
      |- cl_intel_dx9_media_sharing
      |- cl_khr_3d_image_writes
      |- cl_khr_byte_addressable_store
      |- cl_khr_d3d10_sharing
      |- cl_khr_d3d11_sharing
      |- cl_khr_depth_images
      |- cl_khr_dx9_media_sharing
      |- cl_khr_gl_depth_images
      |- cl_khr_gl_event
      |- cl_khr_gl_msaa_sharing
      |- cl_khr_gl_sharing
      |- cl_khr_global_int32_base_atomics
      |- cl_khr_global_int32_extended_atomics
      |- cl_khr_icd
      |- cl_khr_image2d_from_buffer
      |- cl_khr_local_int32_base_atomics
      |- cl_khr_local_int32_extended_atomics
      |- cl_intel_accelerator
      |- cl_intel_motion_estimation

macOS 10.13.3 / Intel Core i7-3667U + HD Graphics 4000

[0] Apple / OpenCL 1.2 (May 24 2018 20:07:03)
|- [0:0] CPU / Intel(R) Core(TM) i7-3667U CPU @ 2.00GHz
   |- Max Compute Units: 4
   |- Max Work Group Size: 1024
   |- Max Work Item Dimensions: 3
   |- Max Work Item Size: [1024, 1, 1]
   |- Max Local Memory Size: 32KB
   |- Max Global Memory Size: 8192MB
   |- Max Clock Frequency: 2000MHz
   |- 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
|- [0:1] GPU / HD Graphics 4000
   |- Max Compute Units: 16
   |- Max Work Group Size: 512
   |- Max Work Item Dimensions: 3
   |- Max Work Item Size: [512, 512, 512]
   |- Max Local Memory Size: 64KB
   |- Max Global Memory Size: 1536MB
   |- Max Clock Frequency: 1150MHz
   |- 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

macOS 10.13.3 / Intel(R) Core(TM) i5-5257U CPU @ 2.70GHz + Intel(R) Iris(TM) Graphics 6100

[0] Apple / OpenCL 1.2 (Oct 31 2017 18:30:00)
|- [0:0] CPU / Intel(R) Core(TM) i5-5257U CPU @ 2.70GHz
   |- Max Compute Units: 4
   |- Max Work Group Size: 1024
   |- Max Work Item Dimensions: 3
   |- Max Work Item Size: [1024, 1, 1]
   |- Max Local Memory Size: 32KB
   |- Max Global Memory Size: 8192MB
   |- Max Clock Frequency: 2700MHz
   |- 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
|- [0:1] GPU / Intel(R) Iris(TM) Graphics 6100
   |- Max Compute Units: 48
   |- Max Work Group Size: 256
   |- Max Work Item Dimensions: 3
   |- Max Work Item Size: [256, 256, 256]
   |- Max Local Memory Size: 64KB
   |- Max Global Memory Size: 1536MB
   |- Max Clock Frequency: 1050MHz
   |- 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