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. 2020 Oct 1;15(10):e0239416. doi: 10.1371/journal.pone.0239416

Table 3. Test 2: FOM, POD-Galerkin ROM and DL-ROM computational times.

time [s] FOM/ROM dimensions
FOM (CPU) 382 N = 65536
DL-ROM (CPU/GPU) 15/1.2 n = 5
POD-Galerkin ROM Nc = 1 (CPU) 103 n = 1538
POD-Galerkin ROM Nc = 2 (CPU) 70 n = 1158, 751
POD-Galerkin ROM Nc = 4 (CPU) 33 n = 435, 365, 298, 45

POD-Galerkin ROM and DL-ROM computational times along with FOM and reduced trial manifold(s) dimensions. DL-ROM provides a more efficient ROM with respect to the POD-Galerkin ROMs.