[mpich-discuss] Hydra, Runtime error

[Dave Goodell]

On Jan 26, 2011, at 3:09 PM CST, Paul Hart wrote:

> I was able to run the program using MPICH2-1.3.1, mpd. Why wouldn’t I get the same error.

That's surprising.  All else being equal, I'm not sure why running the same program with mpd instead of hydra would fail to trigger that same error.  The error message clearly shows arguments that are very likely aliased (depending on the contents of rcnts and displs):

> PMPI_Gatherv(376).....: MPI_Gatherv failed(sbuf=0x27a6c40, scount=1, MPI_DOUBLE_PRECISION, rbuf=0x27a6c40, rcnts=0x25b9670, displs=0x25b96f0, MPI_DOUBLE_PRECISION, root=0, MPI_COMM_WORLD) 

Are you changing something else when you switch to mpd?

Have you tried contacting the Fire Dynamics Simulator developers about this issue?

-Dave