Re: [bgl-discuss] MPI Buffer Problem

[William Gropp <gropp@xxxxxxxxxxx>]

At 02:09 PM 6/2/2005, Douglas Sondak wrote:
> I'm getting the following error message when I try to run a
> Fortran 90/MPI code on our newly-installed Blue Gene/L at Boston
> University:
>
> RVZ: cannot allocate unexpected buffer
>
> The code has run successfully in the past on a wide variety of
> platforms including IBM p690, SGI Origin3000, linux clusters, SGI
> Altix, etc.
>
> I am running on 4 processors.  (This is a test case.)  The routine in
> which the problem is occurring collects arrays on one processor using
> standard blocking sends and receives.  A total of 4 messages are sent:

Is the test program small enough to share?  Are you using 
MPI_Send?  MPI_Isend? MPI_Ssend? (or one of the other modes)?

Bill
_

William Gropp
http://www.mcs.anl.gov/~gropp 

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