HPC FAQ: Difference between revisions

TUFLOW HPC using CPU should produce identical results with TUFLOW HPC using GPU, because it uses the same solver. However, the HPC GPU and HPC CPU are compiled by different compilers, which can produce minor differences down to numerical precision. Also note that minor difference between HPC CPU and HPC GPU can be amplified in a model that is already unstable. If there are large differences between HPC GPU and HPC CPU modelling results, it could be an indicator of model instability.