These options are defined specifically for the AMD GCN port.
Set architecture type or tuning for
gpu. Supported values for
Compile for GCN3 Fiji devices (gfx803).
Compile for GCN5 Vega 10 devices (gfx900).
Compile for GCN5 Vega 20 devices (gfx906).
Specify how many
bytes of stack space will be requested for each GPU
thread (wave-front). Beware that there may be many threads and limited memory
available. The size of the stack allocation may also have an impact on
run-time performance. The default is 32KB when using OpenACC or OpenMP, and