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CLContextCreate

Creates an OpenCL context and returns its handle.

int  CLContextCreate(
   int  device     // Serial number of the OpenCL device or macro
   );

Parameter

device

[in]  The ordinal number of the OpenCL-device in the system. Instead of a specific number, you can specify one of the following values:

  • CL_USE_ANY — any available device with OpenCL support is allowed;
  • CL_USE_CPU_ONLY — only OpenCL emulation on CPU is allowed;
  • CL_USE_GPU_ONLY — OpenCL emulation is prohibited and only specialized devices with OpenCL support (video cards) can be used.

Return Value

A handle to the OpenCL context if successful, otherwise -1. For information about the error, use the GetLastError() function.


Updated: 2015.12.03