Please do not feel bad about reporting problems -- despite the fact
that it creates more work for us, it makes be OMPI better package.
So keep 'em coming!
Is there a way that you can share your code so that we can see what
is happening? I looked through the code for MPI_WAIT and
MPI_STARTALL and they seem to be doing the Right Things, at least in
terms of the persistent requests.
If you're getting error -105, it looks like we're not converting this
to a proper MPI error code before returning it to you (-105 ==
OMPI_ERR_REQUEST, but it should be converted to MPI_ERR_REQUEST
before it is returned). I'll poke around to see what's happening here.
On Oct 12, 2006, at 8:33 PM, Lisandro Dalcin wrote:
I am getting errors using persistent communications (OMPI 1.1.1). I am
trying to implement (in Python) example 2.32 from page 107 of MPI- The
Complete Reference (V1, 2nd. edition).
I think the problem is not in my wrappers (my script works fine with
MPICH2). Below the two issues:
1 - MPI_Startall fails (returning a negative error code, -105, which
in fact it seems to be out of range [MPI_SUCCESS...MPI_LASTCODE]).
However, doing 'for r in reqlist: r.Start()' works.
2 - And then, calling MPI_Waitall (or even iterating over request
array and calling MPI_Wait), the request seems to be deallocated (I
get MPI_REQUEST_NULL upon return), so I cannot start them again. I
understand this is wrong, the request handles should be marked as
inactive, but not for deallocation.
Please, ignore me if this was reported. I am really busy and I have
not found the time to navigate the OMPI sources to get in touch with
its internal, so I am always reporting problems, and never patches.
Sorry!
--
Lisandro Dalcín
---------------
Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC)
Instituto de Desarrollo Tecnológico para la Industria Química (INTEC)
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
PTLC - Güemes 3450, (3000) Santa Fe, Argentina
Tel/Fax: +54-(0)342-451.1594
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Jeff Squyres
Server Virtualization Business Unit
Cisco Systems
