Table 4.

Semi-Lagrangian timing (in hours).

Processors	Small	Med-small	Med-large	Large
1	2.72	8.87	9.16	8.34
2	1.37	4.52	4.73	4.26
4	0.691	2.28	2.39	2.14
8	0.347	1.15	1.19	1.07
16	0.186	0.625	0.647	0.582
24	0.14	0.473	0.494	0.441