Dear there We are here in the university of Valencia, Spain. have installed mpich2 with intel fortran compiler. we'd like to make use of multi-core intel. how it can be defined for the mpiexec that the processor have 4 cores and to make use of theme. with my regards, Ali. Instituto de Ingenieria Energetia Ciudad Plitecnica de Inovacion Universidad Politecnica de Valencia 8E edeficio, accesso F, 5� planta Camino de Vera s/n 46022 Valencia Espa�a Tel.: +34 963 87 91 23 (ext 79123) Fax: +34 963 87 91 26