CUDAPm1 is a modification of CUDALucas that implements the P-1 factoring algorithm for Mersenne Numbers. This version is forked from http://sourceforge.net/projects/cudapm1/
After checking out the main project, you also need to check out the subprojects (currently only MPIR) To do this, the following commands need to be run:
git submodule init
git submodule update