Ma2p is a parallel implementation of IMa2, using OpenMPI-C++ - a Bayesian MCMC based
method for inferring population demography under the IM (Isolation with Migration)
model. Please refer to Sethuraman and Hey (2015) for details of implementation.
The executable is called IMa2p and is located in the /opt/bwhpc/common/bio/ima2p/1.0/bin folder.
To run the program in serial mode (single processor), run the executable directly
with an appropriate command line To run it in parallel use mpirun or mpiexec, for example:
mpirun -np IMa2p ...
An IMa2p run must invoke at least 1 MCMC chain per run. In IMa2 the â€“hn flag is used
to indicated the total number of chains. In IMa2p the â€“hn flag is used to indicate
the number of chains per processor. For example, to invoke Metropolis coupling using
a total of 10 chains, distributed among 5 processors:
mpirun -np 5 IMa2p -hn 2
* Get started:
* Manuals (for IMa2 only):
* IMa2p siumlation-data can be found here:
* bwHPC examples and a moab example script can be found here:
Sethuraman, A, J Hey. 2015. IMa2p - Parallel MCMC and inference of ancient
demography under the Isolation with Migration (IM) model.
Molecular Ecology Resources DOI: 10.1111/1755-0998.12437
In case of problems, please contact: bwhpc (at) uni-konstanz.de
This module is available for all users.