[Pw_forum] execution error on Itanium2
Paolo Giannozzi
giannozz at nest.sns.it
Sun Mar 5 22:39:28 CET 2006
On Saturday 04 March 2006 01:29, Sergey Lisenkov wrote:
> There is a problem with PWscf code running in parallel
> (serial version works fine)
the stable version?
> on Itanium2 cluster, compiled with Intel8.1 compilers, mpich-gm:
>
> 1 - MPI_ALLREDUCE : Datatype is MPI_TYPE_NULL
if this is deterministic, it might be a problem with definitions like
MPI_REAL8 and MPI_DOUBLE_PRECISION that are contained in mpif.h.
You might be using an incompatible version of mpif.h, for instance.
Try to locate where this happens.
If this is erratic, it is a problem with either the compiler or the
mpi libraries or both or the interactions between the two,
whatever your system administrator says.
Paolo
--
Paolo Giannozzi e-mail: giannozz at nest.sns.it
Scuola Normale Superiore Phone: +39/050-509876, Fax:-563513
Piazza dei Cavalieri 7 I-56126 Pisa, Italy
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