This *usually* happens when you include the mpif.h from a different MPI implementation. Can you check that?

On Dec 12, 2007, at 5:15 PM, Brock Palen wrote:

Has anyone ever built parpack (http://www.caam.rice.edu/software/
ARPACK/)  with openmpi?  It compiles but some of the examples give:

[nyx-login1.engin.umich.edu:12173] *** on communicator MPI_COMM_WORLD
[nyx-login1.engin.umich.edu:12173] *** MPI_ERR_TYPE: invalid datatype
[nyx-login1.engin.umich.edu:12173] *** MPI_ERRORS_ARE_FATAL (goodbye)
[nyx-login1.engin.umich.edu:12174] *** An error occurred in MPI_Recv
[nyx-login1.engin.umich.edu:12174] *** on communicator MPI_COMM_WORLD

I checked all the data types are:  MPI_DOUBLE_PRECISION  Im not sure
where to look next.

Brock Palen
Center for Advanced Computing
bro...@umich.edu
(734)936-1985


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Cisco Systems

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