Estoy intentando instalar MPICH 2 en una máquina de 64 bits que se ejecuta en Ubuntu 11.04 (Natty Narwhal). Solí

sudo apt-get install mpich2

Primero me sorprendió ver que mpd no estaba instalado. Al buscar en Google, vi queHidr es el nuevo administrador de paquetes predeterminado. Así que intenté ejecutar mi código MPI. Tuve el siguiente error

> -------------------------------------------------------------------------------------------
> [ip-10-99-75-58:02212] [[INVALID],INVALID] ORTE_ERROR_LOG: A
> system-required executable either could not be found or was not
> executable by this user in file
> ../../../../../../orte/mca/ess/singleton/ess_singleton_module.c at
> line 357 [ip-10-99-75-58:02212] [[INVALID],INVALID] ORTE_ERROR_LOG: A
> system-required executable either could not be found or was not
> executable by this user in file
> ../../../../../../orte/mca/ess/singleton/ess_singleton_module.c at
> line 230 [ip-10-99-75-58:02212] [[INVALID],INVALID] ORTE_ERROR_LOG: A
> system-required executable either could not be found or was not
> executable by this user in file ../../../orte/runtime/orte_init.c at
> line 132
> --------------------------------------------------------------------------
> It looks like orte_init failed for some reason; your parallel process
> is likely to abort.  There are many reasons that a parallel process
> can fail during orte_init; some of which are due to configuration or
> environment problems.  This failure appears to be an internal failure;
> here's some additional information (which may only be relevant to an
> Open MPI developer):
> 
>   orte_ess_set_name failed   --> Returned value A system-required
> executable either could not be found or was not executable by this
> user (-127) instead of ORTE_SUCCESS
> --------------------------------------------------------------------------
> --------------------------------------------------------------------------
> It looks like MPI_INIT failed for some reason; your parallel process
> is likely to abort.  There are many reasons that a parallel process
> can fail during MPI_INIT; some of which are due to configuration or
> environment problems.  This failure appears to be an internal failure;
> here's some additional information (which may only be relevant to an
> Open MPI developer):
> 
>   ompi_mpi_init: orte_init failed   --> Returned "A system-required
> executable either could not be found or was not executable by this
> user" (-127) instead of "Success" (0)
> --------------------------------------------------------------------------
> *** The MPI_Init() function was called before MPI_INIT was invoked.
> *** This is disallowed by the MPI standard.
> *** Your MPI job will now abort.
> -------------------------------------------------------------------------------------------

n primer lugar, me parece una Abrir MPI error. Pero instalé MPICH 2 y no Open MPI.

En segundo lugar, estoy en una solución sobre cómo manejar esto, ya que toda la ayuda parece estar dirigida a usuarios de Open MPI. ¿Me estoy perdiendo de algo