I tried to install RcppEigen on amazon EC2 (on a t1.micro to
make sure It works) & ubuntu 13.04. I tried with both R version was 2.15.2 and 3.0, 32bit ubuntu and 64bit
C++ can be demanding as is, and complex template code (which Eigen surely is) demands even more resources. Simply try allocating more memory -- otherwise it is hard to kill g++.