3.18.3 AMD GCN Options
These options are defined specifically for the AMD GCN port.
-march=
gpu-mtune=
gpu- Set architecture type or tuning for gpu. Supported values for gpu
are
- ‘fiji’
- Compile for GCN3 Fiji devices (gfx803).
- ‘gfx900’
- Compile for GCN5 Vega 10 devices (gfx900).
-mstack-size=
bytes- 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
1MB otherwise.