dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

Looks like it's working now. We get a factor 1.9 speedup with 2
threads. It's somewhat worse if we consider that the multithreaded
assembly with 1 thread is itself a factor 1.08 faster than regular
assembly.

--
Anders


On Mon, Nov 29, 2010 at 01:45:52PM +0100, Anders Logg wrote:
> I know, that's why I didn't turn it on. :-)
>
> Currently debugging.
>

> Date: Mon, 29 Nov 2010 12:36:40 -0000
> From: noreply@xxxxxxxxxxxxx
> To: Anders Logg <logg@xxxxxxxxx>
> Subject: [Branch ~dolfin-core/dolfin/main] Rev 5334: Turn on renumbering
>  for multi-core bench. Seg-faults for 2 processes.
>
> ------------------------------------------------------------
> revno: 5334
> committer: Garth N. Wells <gnw20@xxxxxxxxx>
> branch nick: dolfin-all
> timestamp: Mon 2010-11-29 12:32:27 +0000
> message:
>   Turn on renumbering for multi-core bench.  Seg-faults for 2 processes.
> modified:
>   bench/fem/multicore/cpp/main.cpp
>
>

> === modified file 'bench/fem/multicore/cpp/main.cpp'
> --- bench/fem/multicore/cpp/main.cpp	2010-11-27 23:44:11 +0000
> +++ bench/fem/multicore/cpp/main.cpp	2010-11-29 12:32:27 +0000
> @@ -12,6 +12,7 @@
>
>  #include <dolfin.h>
>  #include <dolfin/fem/AssemblerTools.h>
> +#include <dolfin/mesh/MeshRenumbering.h>
>  #include "Poisson.h"
>  #include "NavierStokes.h"
>
> @@ -106,6 +107,7 @@
>    // Create mesh
>    UnitCube mesh(SIZE, SIZE, SIZE);
>    mesh.color("vertex");
> +  MeshRenumbering::renumber_by_color(mesh);
>    //mesh.init(1);
>
>    // Test cases
>