[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[ESPResSo-devel] Re: LB parallel error
From: |
Ulf Schiller |
Subject: |
[ESPResSo-devel] Re: LB parallel error |
Date: |
Tue, 03 Jul 2007 07:44:01 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.7.12) Gecko/20050921 |
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hi,
Kai Grass wrote:
> Hallo Ulf,
>
> die aktuelle Version von D3Q18 läuft leider nicht parallel ...
>
> (für LAMMPI)
> MPI_Type_free: invalid datatype argument: Invalid argument (rank 0,
> MPI_COMM_WORLD)
> Rank (0, MPI_COMM_WORLD): Call stack within LAM:
> Rank (0, MPI_COMM_WORLD): - MPI_Type_free()
> Rank (0, MPI_COMM_WORLD): - main()
>
> (für MPICH)
> 0 - MPI_TYPE_FREE : Datatype is MPI_TYPE_NULL
> [0] Aborting program !
> [0] Aborting program!
>
> (für OPENMPI)
> [Simbio-MacBookPro.local:03565] *** An error occurred in MPI_Type_free
> [Simbio-MacBookPro.local:03565] *** on communicator MPI_COMM_WORLD
> [Simbio-MacBookPro.local:03565] *** MPI_ERR_TYPE: invalid datatype
> [Simbio-MacBookPro.local:03565] *** MPI_ERRORS_ARE_FATAL (goodbye)
The D3Q18 model is not supported any more in the latest repository
version. However, looking at the error message I assume that the error
also occurs for D3Q19. It's due to the fact that the initialization of
LB is still somewhat preliminary. There should be a clean
pre-initialization of a zero-size LB lattice (similar to the cell
system), which I didn't have the time to implement yet.
As a workaround, try to comment out the first MPI_Type_free in
lb_create_fluid(); this probably gives rise to a potential memory hole
when recreating the LB structures (as the DEBUG output already states).
Anyway, at the moment there's no 100% guarantee that the latest CVS
version of lattice Boltzmann runs in parallel at all.
I can have a closer look after Statphys.
Cheers,
Ulf
- --
Ulf D. Schiller * Room 1.404 * Phone +49 6131 379-481
Max Planck Institute for Polymer Research
Theory Group
D-55128 Mainz, Germany 50° 0' N, 008° 16' E
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.0 (GNU/Linux)
iD8DBQFGieIftqL0QpvXQjERAqiBAJ9svK59KbwAGZLD/JrFKvOkaW4FGgCg8DQW
ZN4G9Fz/0kzGVuewdpY++Ts=
=I+GA
-----END PGP SIGNATURE-----
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [ESPResSo-devel] Re: LB parallel error,
Ulf Schiller <=