Hi, From the libs I use I find more and more *INT64 version for my platform (Opteron, Linux, g++). I guess this is due to a compiler-flag to use 64 bit integers. Has anyone experience with this. Does this make numerical code significant faster (due to alignment) or is this just to overcome 2/4 GB of address space? Can I link "normal" and INT64 libsts the same time or do I have to compile everything with INT64? What is the option? Thanks a lot, Fabian
