[Carpet] Cactus and Openmpi

Hee Il Kim heeilkim at gmail.com
Wed Mar 19 14:10:08 CET 2008


I'm sorry. I found the right openmpi option for my cluster.

Hee Il

2008/3/19, Hee Il Kim <heeilkim at gmail.com>:
>
> Hi,
>
> Now I'm testing a new cluster with openmpi-1.2.5. The cluster is composed
> of 10 nodes of 2 quad core Intel Harpertown cpus. Simple mpi_hello test
> passed and there's no problem if I take only one node. But if I take 2
> nodes, then it shows
>
> ...
> ...
>
>               CartGrid3D: Apply symmetry boundary conditions
>             Boundary: Unselect all grid variables for boundary conditions
>         Whisky: Convert back to primitive variables (polytype)
>
> --------------------------------------------------------------------------------
> [compute-0-1.local:20975] *** An error occurred in MPI_Allgather
> [compute-0-1.local:20971] *** An error occurred in MPI_Allgather
> [compute-0-1.local:20971] *** on communicator MPI_COMM_WORLD
> [compute-0-1.local:20971] *** MPI_ERR_INTERN: internal error
> [compute-0-1.local:20971] *** MPI_ERRORS_ARE_FATAL (goodbye)
> ...
> ...
>
> I'm trying to use this openmpi because the scalability with mpich2/mpich
> was bad. Any hints would be appreciated.
>
> Hee Il
>
>
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