CLGetDeviceInfo

이 함수는 OpenCL 드라이버로부터 장치 속성을 수신합니다.

bool  CLGetDeviceInfo(
   int     handle,          // OpenCL 장치 핸들
   int     property_id,     // 요청된 속성 ID
   uchar&  data[],          // 데이터 수신을 위한 배열
   uint&   size             // 배열 요소의 이동, 기본값은 0.
   );

Parameter

handle

[in] CLContextCreate() 함수로 만든 OpenCL 장치 인덱스 또는 OpenCL 핸들.

property_id

[in] 수신해야 하는 OpenCL 장치 속성의 ID. 값은 아래 표에 나열된 미리 결정된 값 중 하나일 수 있습니다.

data[]

[out] 요청한 속성에서 데이터를 수신하기 위한 어레이.

size

[out] data[] 배열에서 수신된 데이터의 크기.

반환값

성공적이면 true, 아니면 false. 오류에 대한 자세한 내용은 GetLastError() 함수를 사용하십시오.

참고

1차원 배열의 경우, OpenCL 버퍼에 대한 데이터 판독이 시작되는 요소의 수는 AS_SERIES 플래그를 고려하여 계산됩니다.

OpenCL 장치 속성의 사용 가능한 ID 목록

속성과 함수에 대한 정확한 설명은 OpenCL 공식 웹사이트에서 확인할 수 있습니다..

식별자	값
CL_DEVICE_TYPE	0x1000
CL_DEVICE_VENDOR_ID	0x1001
CL_DEVICE_MAX_COMPUTE_UNITS	0x1002
CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS	0x1003
CL_DEVICE_MAX_WORK_GROUP_SIZE	0x1004
CL_DEVICE_MAX_WORK_ITEM_SIZES	0x1005
CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR	0x1006
CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT	0x1007
CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT	0x1008
CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG	0x1009
CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT	0x100A
CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE	0x100B
CL_DEVICE_MAX_CLOCK_FREQUENCY	0x100C
CL_DEVICE_ADDRESS_BITS	0x100D
CL_DEVICE_MAX_READ_IMAGE_ARGS	0x100E
CL_DEVICE_MAX_WRITE_IMAGE_ARGS	0x100F
CL_DEVICE_MAX_MEM_ALLOC_SIZE	0x1010
CL_DEVICE_IMAGE2D_MAX_WIDTH	0x1011
CL_DEVICE_IMAGE2D_MAX_HEIGHT	0x1012
CL_DEVICE_IMAGE3D_MAX_WIDTH	0x1013
CL_DEVICE_IMAGE3D_MAX_HEIGHT	0x1014
CL_DEVICE_IMAGE3D_MAX_DEPTH	0x1015
CL_DEVICE_IMAGE_SUPPORT	0x1016
CL_DEVICE_MAX_PARAMETER_SIZE	0x1017
CL_DEVICE_MAX_SAMPLERS	0x1018
CL_DEVICE_MEM_BASE_ADDR_ALIGN	0x1019
CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE	0x101A
CL_DEVICE_SINGLE_FP_CONFIG	0x101B
CL_DEVICE_GLOBAL_MEM_CACHE_TYPE	0x101C
CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE	0x101D
CL_DEVICE_GLOBAL_MEM_CACHE_SIZE	0x101E
CL_DEVICE_GLOBAL_MEM_SIZE	0x101F
CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE	0x1020
CL_DEVICE_MAX_CONSTANT_ARGS	0x1021
CL_DEVICE_LOCAL_MEM_TYPE	0x1022
CL_DEVICE_LOCAL_MEM_SIZE	0x1023
CL_DEVICE_ERROR_CORRECTION_SUPPORT	0x1024
CL_DEVICE_PROFILING_TIMER_RESOLUTION	0x1025
CL_DEVICE_ENDIAN_LITTLE	0x1026
CL_DEVICE_AVAILABLE	0x1027
CL_DEVICE_COMPILER_AVAILABLE	0x1028
CL_DEVICE_EXECUTION_CAPABILITIES	0x1029
CL_DEVICE_QUEUE_PROPERTIES	0x102A
CL_DEVICE_NAME	0x102B
CL_DEVICE_VENDOR	0x102C
CL_DRIVER_VERSION	0x102D
CL_DEVICE_PROFILE	0x102E
CL_DEVICE_VERSION	0x102F
CL_DEVICE_EXTENSIONS	0x1030
CL_DEVICE_PLATFORM	0x1031
CL_DEVICE_DOUBLE_FP_CONFIG	0x1032
CL_DEVICE_PREFERRED_VECTOR_WIDTH_HALF	0x1034
CL_DEVICE_HOST_UNIFIED_MEMORY	0x1035
CL_DEVICE_NATIVE_VECTOR_WIDTH_CHAR	0x1036
CL_DEVICE_NATIVE_VECTOR_WIDTH_SHORT	0x1037
CL_DEVICE_NATIVE_VECTOR_WIDTH_INT	0x1038
CL_DEVICE_NATIVE_VECTOR_WIDTH_LONG	0x1039
CL_DEVICE_NATIVE_VECTOR_WIDTH_FLOAT	0x103A
CL_DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE	0x103B
CL_DEVICE_NATIVE_VECTOR_WIDTH_HALF	0x103C
CL_DEVICE_OPENCL_C_VERSION	0x103D
CL_DEVICE_LINKER_AVAILABLE	0x103E
CL_DEVICE_BUILT_IN_KERNELS	0x103F
CL_DEVICE_IMAGE_MAX_BUFFER_SIZE	0x1040
CL_DEVICE_IMAGE_MAX_ARRAY_SIZE	0x1041
CL_DEVICE_PARENT_DEVICE	0x1042
CL_DEVICE_PARTITION_MAX_SUB_DEVICES	0x1043
CL_DEVICE_PARTITION_PROPERTIES	0x1044
CL_DEVICE_PARTITION_AFFINITY_DOMAIN	0x1045
CL_DEVICE_PARTITION_TYPE	0x1046
CL_DEVICE_REFERENCE_COUNT	0x1047
CL_DEVICE_PREFERRED_INTEROP_USER_SYNC	0x1048
CL_DEVICE_PRINTF_BUFFER_SIZE	0x1049
CL_DEVICE_IMAGE_PITCH_ALIGNMENT	0x104A
CL_DEVICE_IMAGE_BASE_ADDRESS_ALIGNMENT	0x104B

예:

void OnStart()
  {
//---
   int dCount= CLGetInfoInteger(0,CL_DEVICE_COUNT);
   for(int i = 0; i<dCount; i++)
     {
      int clCtx=CLContextCreate(i);
      if(clCtx == -1)
         Print("ERROR in CLContextCreate");
      string device;
      CLGetInfoString(clCtx,CL_DEVICE_NAME,device);
      Print(i,": ",device);
      uchar data[1024];
      uint size;
      CLGetDeviceInfo(clCtx,CL_DEVICE_VENDOR,data,size);
      Print("size = ",size);
      string str=CharArrayToString(data);
      Print(str);
     }
  }
//--- Experts 저널의 항목 예제
//  2013.07.24 10:50:48     opencl (EURUSD,H1)      2: Advanced Micro Devices, Inc.
//  2013.07.24 10:50:48     opencl (EURUSD,H1)      size = 32
//  2013.07.24 10:50:48     opencl (EURUSD,H1)      Tahiti
//  2013.07.24 10:50:48     opencl (EURUSD,H1)      Intel(R) Corporation
//  2013.07.24 10:50:48     opencl (EURUSD,H1)      size = 21
//  2013.07.24 10:50:48     opencl (EURUSD,H1)      1:        Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz
//  2013.07.24 10:50:48     opencl (EURUSD,H1)      NVIDIA Corporation
//  2013.07.24 10:50:48     opencl (EURUSD,H1)      size = 19
//  2013.07.24 10:50:48     opencl (EURUSD,H1)      0: GeForce GTX 580

CLContextFree

CLProgramCreate