Table 1. Runtime using M CPUs (rows) of which N CPUs (columns) are assigned to the likelihood computation. Here we show the results of the primates dataset.

M∖N	1	2	4	8	16	32	64
1	42,063	*	–	–	–	–	–
2	21,768	22,268	–	–	–	–	–
4	11,275	11,434	12,088	–	–	–	–
8	6,253	6,136	6,185	6,969	–	–	–
16	3,336	3,189	3,162	3,562	4,612	–	–
32	1,856	1,709	1,651	1,846	2,393	4,738	–
64	1,112	944	880	966	1,217	2,406	11,363