On Aug 18, 2009, at 8:39 AM, Federico Golfrè Andreasi wrote:
I think I've solved my problem:
in the previous code the arguments of the MPI_Comm_spawn_multiple
where filled only by the "root" process not by all the process in
the group. Now all the ranks have all that information and the spa
BTW: I did see one issue in your program. In the program that isn't working,
you declare the various input arrays for MPI_Comm_spawn_multiple, but only
the manager rank=0 ever initializes them. Thus, the other manager ranks were
passing random garbage down to the function.
Even though only the roo
By any chance did you have the flag on to check MPI parameters? I think we
have a bug in there that might be causing what you saw, but it would only be
active if you had requested that OMPI check parameters.
Thanks
Ralph
2009/8/18 Federico Golfrè Andreasi
> That's is you've done: the worker pr
That's is you've done: the worker program spawned and the two versions of
the manager that call the spawning.
I you find something wrong please let me know.
Thank you,
Federico
2009/8/18 Ralph Castain
>
>
> Only the root process needs to provide the info keys for spawning anything.
>
Only the root process needs to provide the info keys for spawning anything.
If that isn't correct, then we have a bug.
Could you send us a code snippet that shows what you were doing?
Thanks
Ralph
2009/8/18 Federico Golfrè Andreasi
> I think I've solved my problem:
>
> in the previous c
I think I've solved my problem:
in the previous code the arguments of the MPI_Comm_spawn_multiple where
filled only by the "root" process not by all the process in the group. Now
all the ranks have all that information and the spawn is done correctly.
But I read on http://www.mpi-forum.org/docs/mp
On Aug 18, 2009, at 5:12 AM, Federico Golfrè Andreasi wrote:
In the info object I only set the "host" key (after creatig the
object with the MPI_Info_create).
I've modified my code to leave out that request and created the
array of Info object as an array of MPI_INFO_NULL but the problem is
In the info object I only set the "host" key (after creatig the object with
the MPI_Info_create).
I've modified my code to leave out that request and created the array of
Info object as an array of MPI_INFO_NULL but the problem is still the same.
The error is thrown only when running with more tha
Are you initializing your MPI_Info object? Remember that -- at a
minimum -- you need to call MPI_INFO_CREATE on an MPI_Info object (or
pass MPI_INFO_NULL).
On Aug 17, 2009, at 11:28 AM, Federico Golfrè Andreasi wrote:
Hi!
I have a little code that uses the MPI_Comm_spawn_multiple,
I've us
We tried to make the most common info_keys the same, but there can be
differences. What info keys are you trying to pass?
2009/8/17 Federico Golfrè Andreasi
> Hi!
>
> I have a little code that uses the MPI_Comm_spawn_multiple,
> I've used it without any problems with the MPICH2 and MVAPICH2
> i
Hi!
I have a little code that uses the MPI_Comm_spawn_multiple,
I've used it without any problems with the MPICH2 and MVAPICH2
implementation of MPI-2,
but with the Open MPI v1.3.3 it throws this error:
*** An error occurred in MPI_Comm_spawn_multiple
*** on communicator MPI_COMM_WORLD
*** MPI_ER
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