Dear all, I've installed ALPS2.0 on a 12-core Linux Server Computer. When running programs using DMRG, one program usually uses more than one CPU, e.g., even 390% CPU. I'd like to know if there're some places we should pay attention to in the installation or the using process. I doubt whether the ALPS2.0 version has applied the Parallel Programming Algorithm. Does the usage of 390% CPU mean the speeding up of the computation? What I have to do if I'd like one DMRG program uses just one CPU? Yours sincerely, L. H. Pan