[Wrf-users] mpich2 and/or openmpi?

[Yagnesh]

Hello Martin,

Martin Ivanov <martin.ivanov at ifg.uni-tuebingen.de> writes:

> Dear WRF users,
>
> I am about to install the WRF-3.4 model on my computer. According to the 
> documentation
> mpich2 and/or openmpi can be installed to enhance functionality.

AFAIK mpi enhance if you are building WRF with multiple CPU(s).  

>As I am not a expert in the field of numerical computing, please apologise
> the probably stupid question I am going to ask.  

I am also not an expert, but replying :)

>Should I install both mpich2 and openmpi on my system or just one of them?
> According to their descriptions, they implement the same functionality, but
> the examples in the WRF user's guide are with mpirun, i.e assuming
> mpich2. Can these two libraries actully coexist on a system, does this make
> sense? 

They can coexist you probably would want to keep only one to avoid conflicts. 

>If they cannot, which one would you recommend? 

It depends. The system I run wrf has none of them. The mpi library I am using
is provided by vendor (SGI MPT).

Thanks.,
-- 
ఎందరో మహానుభావులు అందరికి వందనములు
YYR