Vo, Trinh (388C) wrote: > I don’t know which free compiler and MPI are most suited for QE. what is written in the user guide still applies: gfortran works, sort of, but it is buggy. g95 works nicely but it produces slow executables. All non-buggy, properly installed MPI libraries work. P. -- Paolo Giannozzi, Democritos and University of Udine, Italy