On the Accuracy and Efficiency of Transient Spectral Element Models for Seismic Wave Problems

Figure 2

CPU time (in seconds) and memory (in kilobytes) consumed for solving a time-dependent problem with different formulations. The number of time steps is fixed to be 400, and square-element meshes with mesh step size are used in both media.

(a) CPU time with respect to the element order

(b) Memory consumption with respect to the element order