The libgmp installed by apt-get may be sup-optimal for your CPU. That's the biggest concern. But it's also easily solved by grabbing libgmp.so.10 from /usr/local/bin and placing it there on every instance you have.
Thanks for your help mikaelh. I did the apt-get install libgmp.How do you grab the libgmp.so.10 from /usr/local/bin?
Side note: how do you send all your coins to one address? Is it the sendmany command? Thanks!
I meant from /usr/local/lib. Assuming that you have followed my guide on how to compile your own libgmp. Note that you also need to use my instructions for compiling primecoind after that to make sure that the binary is using libraries from /usr/local/lib.