On Wed, 2006-08-30 at 15:09 -0500, Ganesh Bikshandi wrote:
> Hi All,
>
> I have a problem with MPI_Alltoallv and strided user defined type. I
> get segmentation fault. I guess that I have to adjust my offset
> calculation. But don't know what and how. I tried different things,
> but still get the seg fault. Somebody please help.
You really don't provide enough information for us to help you. The
only thing worth clarifying about Alltoallv is that the displacements
are the number of elements of type sendtype (or receive type, depending
on the displacements you are talking about), not the number of bytes.
This is the cause of most of the confusion with Alltoallv.
Brian
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