Figure 2
From: PyEvolve: a toolkit for statistical modelling of molecular evolution
The 3-level parallelisation stack for a model Model – the null or alternative hypothesis parameterisations; SA – the simulated annealing parallelisation level; LF – the likelihood function parallelisation level; CPU – actual hardware cpu's; level ID – an identifier relative to the virtual cpu's at the specified level; subgroup ID – an identifier relative to the processors within a specified virtual processor at the specified level; actual ID – the standard MPI identifier for each real cpu.