SCALFFT_PROC_GRID

Set the 3D process grid layout.

Examples

When the total number of processes is 15, the 3D process grid layout for 3D FFT computations using the extended interface can be designated as 1 × 3 × 5 by setting the environment variable -x SCALFFT_PROC_GRID=1,3,5.

Parent topic: Extended Interface Environment Variables