I am running an application using mpi (over intel fortran). My application uses a simple input file which is very small and therefore I read it on a single process. My application uses mixed parallelism, i.e. mpi and openmp. I submit my jobs on a cluster under a PBS queue system.
When I use the mpiexec.1ppn command the job fails. It opens the file successfully but it always get an error message stating that it can't read the file. Could someone please tell me why does this happens and give me some solution strategies. Many thanks in advance.