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GPU index


Specify the CUDA® device to target.

Category: Code Generation > GPU Code


Default: -1

In a multi GPU environment such as NVIDIA® Drive platforms, specify the CUDA device to target.


GPU index can be used with gpuArray only if gpuDevice and GPU index point to the same GPU. If gpuDevice points to a different GPU, a CUDA_ERROR_INVALID_VALUE runtime error is thrown.


  • This parameter requires a GPU Coder™ license.

  • To enable this parameter, select Generate GPU code on the Code Generation pane.

Command-Line Information

Parameter: GPUDeviceID
Type: integer
Value: -1 or a valid user-specified index value
Default: -1

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