Am 25.10.2018 um 20:03 schrieb Jadson Silva:

> Hello,
> I would like to know if when we install OpenMPI the wrapper compilers are 
> also installed. 
> When I try to compiler the 'hello' examples I get the following message:
> The program 'mpic++' can be found in the following packages:
>  * lam4-dev
>  * libmpich-dev
>  * libopenmpi-dev
> Should I just install one of those packages?

If you compile Open MPI on your own, your get both: the runtime environment 
(i.e. dynamic libraries and certain commands like `mpiexec`) and the compiler 
wrappers including the necessary header files. In case it's delivered 
precompiled by a Linux distribution, they often split the packages to contain 
the runtime parts in one packages and the development tools in an additional 

If you use these delivered libraries and installed the runtime environment also 
with the package manager of your distribution, I would suggest to install 
"libopenmpi-dev" (and only this one to avoid conflicts with wrappers from other 
MPI implementations).

-- Reuti

PS: Interesting that they still include LAM/MPI, which was superseded by Open 
MPI some time ago.
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