Re: [Anuga-user] ANUGA Parallel: Current benchmarks and setup guide? (for non-Ubuntu work stations)

[Stephen R. <ste...@an...>]

Hi Cailan,

You need to first have MPI installed.

THen we use pypar as the interface between mpi and python, available 
from http://sourceforge.net/projects/pypar/

Should make sure the pypar examples work (and is in your python path)

In the anuga_parallel directory there is a subdirectory pymetis. You can 
use the make file to compile. Should create a metis.so file in the 
directory. Test using test_all.py

Now go back to the anuga_parallel  and run test_all.py

Hopefully that all works.

Then run run_parallel_sw_merimbula.py

There are some choices in the script to use a small mesh, and a somewhat 
larger mesh (one has a 100 triangle the other 10000)

Run that script using a command like

mpirun -np 4 python run_parallel_sw_merimbula.py

That should run on 4 processors

You should look at the code in  run_parallel_sw_merimbula.py

Essentially a fairly standard example, with the extra command domain= 
distribute(domain)

which sets up all the parallel stuff.

Also for efficiency reasons we only setup the original sequential mesh 
on processor 0, hence the statement

if myid == 0:
     domain = create_domain_from_file(mesh_filename)
     domain.set_quantity('stage', Set_Stage(x0, x1, 2.0))
else:
     domain = None


Hope that helps. The output will be an sww file associated to each 
processor. Somewhere someone has created a script to combine these sww 
files into one file. Will have to search for that.

Hope this helps
Steve

On 30/06/2011 5:08 AM, Cailan Halliday wrote:
> Hello ANUGA users,
>
> I am wondering if anyone has put together an installation guide for 
> compiling the parallel version of ANUGA for non-Ubuntu work stations? 
> I know my way around the Linux terminal but am no expert. Is anyone 
> running ANUGA on something like Red Hat?
>
> I did find a document created in 2006: 
> http://anuga.anu.edu.au/browser/trunk/anuga_core/source/anuga_parallel/documentation
> It has some information on parallel, is this document current? Are 
> there more recent benchmarks for the parallel version of ANUGA and how 
> do I install ANUGA on a non-ubuntu system? Is it as simple as running 
> compile_all.py? The current installation guide only has quick install 
> instructions for Ubuntu.
>
> Thanks so much,
> Cailan Halliday
>
>
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