Hi Thanks to the help from Uwe Ligges I could update Rmpi package. Now R can load the package but it still does not work. Now the problem comes when trying to use the first Rmpi command in a basic tutorial: > library("Rmpi") > mpi.spawn.Rslaves() Error en mpi.spawn.Rslaves() : You cannot use MPI_Comm_spawn API Seaching in the list I have found references to this problem but not the solution. More info about R and MPICH installation in my system (Ubuntu Hardy Heron in a dual AMD Athlon PC) can be found in http://ubuntuone.com/p/6Wr/ Thanks in advance -- --------------------------------------------------------------- Francisco Pastor Meteorology department Fundaci?n CEAM paco at ceam.es http://www.ceam.es/ceamet - http://www.ceam.es Parque Tecnologico, C/ Charles R. Darwin, 14 46980 PATERNA (Valencia), Spain Tlf. 96 131 82 27 - Fax. 96 131 81 90 --------------------------------------------------------------- Usuario Linux registrado: 363952