Research and Construction of a Global Hexagonal Marine Gravity Gradient Reference Map for Navigation

Table 9

Time consumption of the different parallel schemes.

Parallel scheme	Model calculation time	Model calculation acceleration ratio	Residual calculation time	Residual calculation acceleration ratio	Total time	Total acceleration ratio
Serial computing	120.35 h	1	7.92 h	1	128.27 h	1
Pure CPU parallelism	2.98 h	40.38	12.11 min	39.24	3.18 h	40.33
Pure GPU parallelism	6.73 h	17.86	25.32 s	1126.38	6.74 h	19.03
GPU+CPU hybrid parallel	2.98 h	40.38	25.32 s	1126.38	2.99 h	42.90