Nachschlagewerk MQL5Arbeit mit OpenCLCLGetDeviceInfo

CLGetDeviceInfo

Erhielt die Geräteeigenschaft aus dem OpenCL-Treiber.

bool  CLGetDeviceInfo(
   int     handle,          // Handle von OpenCL-Gerät
   int     property_id,     // Identifikator der gefragten Eigenschaft
   uchar&  data[],          // Array für Daten
   uint&   size             // Offset im Array in Elemente, standardmäßig 0
   );

Optionen

handle

[in] Nummer von OpenCL-Gerät oder OpenCL-Handle, der durch die Funktion CLContextCreate() erstellt wurde.

property_id

[in] Identifikator der Eigenschaft, die Sie über das OpenCL-Gerät erhalten möchten. Kann einer der vordefinierten Werten aus der unteren Tabelle sein.

data[]

[out] Array, um die Daten über das gefragte Gerät zu erhalten.

size

[out] Die Größe der erhaltenen Daten im Array data[].

Rückgabewert

true beim Erfolg oder false beim Fehler. Um Informationen über den Fehler zu erhalten, rufen Sie die Funktion GetLastError().

Hinweis

Für eindimensionale Arrays, wird die Nummer des Elements, mit dem Lesung von Daten für Schreibung in den OpenCL-Puffer beginnt, unter Berücksichtigung der Flagge AS_SERIES ausgerechnet.

Liste der gültigen Eigenschaftenbezeichner von OpenCL-Gerät

Die genaue Beschreibung der Eigenschaft und ihre Werte finden Sie auf die offizielle OpenCL Website.

Identifier	Wert
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

Beispiel:

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);
    ;}
;}
//--- Beispiel der Ausgabe in Protokoll Experten
//  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