centOS path issues

I'm currently playing around with my uni's computing cluster, it uses centOS, I was trying to compile and run a mpi (parallel programming library) code, and found 2 problems:
1. I can't just compile with mpicc, I need to run it from the absolute directory, what do I need to do to add it to my environment variable or something such that I can just use the mpicc bash command?
2. The library file could not be linked either, anyways to link the include path as well?

 

Code:

sudo make install

inside the build directory?

 

It's already installed, it's a computing cluster, I'm only one of the users who wants to use it.

 

I think you want to add to your PATH, either in .bashrc or .bash_profile:

Code:

PATH=$PATH:/path/to/mpicc

 

what allurgoreries said, or you can make a link to existing executable and place that link to already known path ... e.g.

echo $PATH
(this will show you your different PATHs that are already included and searched if you type command in the shell, so if you add new one, you should see it too - also i'm sure, you see there the " /usr/local/bin" PATH so ...

cd /usr/local/bin
ln -s /path/to/executable anyname

start shell, type 'anyname' ... that's it

the /usr/local/bin path is always known and searched - i use it for my custom scripts, or links, usually easier, than add new path to my profile ...

 

The library should be in a directory included in $LD_LIBRARY_PATH.