[ITK] [ITK-dev] New Highly Parallel Build System, the POWER8

[Will Schroeder]

If anyone is interested in vtkSMPTools see this brief but most informative
document. The system is under active development.

http://www.vtk.org/Wiki/images/3/3b/VTK_SMP_Guide.pdf

On Fri, Apr 24, 2015 at 11:10 AM, Will Schroeder <will.schroeder at kitware.com
> wrote:

>
> On Fri, Apr 24, 2015 at 9:34 AM, Bradley Lowekamp <blowekamp at mail.nih.gov>
> wrote:
>
>> I hope were are able to improve ITK threading performance with this
>> system. But due to the tweaky-ness of this type of performance and not
>> having direct access to the system to easily run performance analysis, I
>> and a little unclear how to best utilize it.
>
>
> Since I have recently been working on coarse grained parallelism lately, I
> have been using the vtkSMPTools abstraction that Berk Geveci and his team
> designed. Under the hood it uses one of Intel TBB, X-Kaapi, raw threads,
> serial, and soon OpenMP (picked at compile time). It is fantastically easy
> to use, with built in load balancing (via thread stealing). I have
> tremendous respect for what Berk's team is doing...fine-grained (e.g., GPU
> via VTKm), coarse grained (vtkSMPTools), and data parallel (advanced
> execution architectures and data models in VTK). Berk is PI and involved in
> several projects with the DOE labs as they move towards exascale computing
> and really we should be tapping that community more. For example,
> VTK/ParaView/Catalyst are running nicely on hundreds of thousands of
> processors in some hero runs.
>
> As another example, we designed a threaded contouring algorithm (Flying
> Edges) that just knocks the pants off of any other isocontouring algorithm
> I've seen (we've submitted a paper). It uses this vtkSMPTools abstraction
> and we were able to easily run it on this POWER8 system (and other
> systems). It was really cool to run the algorithm on a 2048^3 dataset and
> see all 160 cores pegged :-)
>
> W
>
>
> --
> William J. Schroeder, PhD
> Kitware, Inc.
> 28 Corporate Drive
> Clifton Park, NY 12065
> will.schroeder at kitware.com
> http://www.kitware.com
> (518) 881-4902
>



-- 
William J. Schroeder, PhD
Kitware, Inc.
28 Corporate Drive
Clifton Park, NY 12065
will.schroeder at kitware.com
http://www.kitware.com
(518) 881-4902
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