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

Table 4

Errors of the components of the gradient tensor of gravity in single precision, with respect to its sequential counterpart.

Gravity gradient tensor components	Error L2; 1-GPU (SP)	Error L2; 4-GPU (SP)
𝐺𝑧𝑧	0.0310	0.0310
𝐺𝑥𝑥	0.0385	0.0385
𝐺𝑦𝑦	0.0392	0.0392
𝐺𝑥𝑦	0.0743	0.0743
𝐺𝑥𝑧	0.3085	0.3085
𝐺𝑦𝑧	0.3148	0.3148