RAxML

1 Overview | 2 Using | 2.1 Multicore/Multi node

Overview

RAxML (Randomized Axelerated Maximum Likelihood) is a program for sequential and parallel Maximum Likelihood based inference of large phylogenetic trees.
- Hands-on session:

Using

Use the module name raxml to discover versions available and to load the application.

Multicore/Multi node

The raxml application has been built with MPI (openmpi) and can run across multiple nodes, as well as across multiple cores, depending on which command you use.

View the options of whichever command you use, specifically reading about the -T and -N options:

Command	Functionality	Use Options:

Command	Functionality	Use Options:
`raxmlHPC`	Single node, single core.
`raxmlHPC-PTHREADS`	Single node, multiple cores.	`-T <#num of cores>`
`raxmlHPC-MPI`	Multiple nodes, single core per task.	`-N <#num of nodes/tasks>` : use `srun`
`raxmlHPC-HYBRID`	Multiple nodes, multiple cores per task.	`-N <#num of nodes/tasks> -T <#num of cores per task>` : use `srun`