TESLA GPUs versus MPI with OpenMP for the Forward Modeling of Gravity and Gravity Gradient of Large Prisms Ensemble

Table 2

Errors of the components of the gravimetric tensor, calculated with CUDA in single precision, with respect its sequential counterpart in double precision.

Gravity components	Error L2; 1-GPU (SP)	Error L2; 4-GPU (SP)
𝐺𝑧	1.3080	1.3080
𝐺𝑥	0.8929	0.8929
𝐺𝑦	0.9275	0.9275