2012/1/2 Sören Gebbert :
...
> ATLAS is the C-Implementation of BLAS and parts of LAPACK.[1]
>
> The advantages of ATLAS over the BLAS/LAPACK Fortran wrapper in GRASS
> is that its supports
> the C-style matrix layout used by the gmath library and that no
> Fortran to C conversion is needed.
This
Hi,
2011/12/18 Hamish :
> Sören wrote:
>>> The GRASS ATLAS wrapper is and example for such
>>> an approach. ATLAS can be used, but in case it
>>> is not installed, the default GRASS implementation
>>> is used.
> Hamish:
>> > Oh, I did not know that was there. We can work on
>> > adding it to trunk
Hamish wrote:
> > ps- does any one know if the equivalent of the
> > "jobs" and "wait" shell commands exist for
> > launching modules from python?
Michael:
> I know that an equivalent of wait exists. I don't know
> about jobs, but the answer is probably. We've experimented
> with this some on the
On Dec 18, 2011, at 10:00 AM,
wrote:
> ps- does any one know if the equivalent of the
> "jobs" and "wait" shell commands exist for
> launching modules from python?
>
I know that an equivalent of wait exists. I don't know about jobs, but the
answer is probably. We've experimented with this
Sören wrote:
>> The GRASS ATLAS wrapper is and example for such
>> an approach. ATLAS can be used, but in case it
>> is not installed, the default GRASS implementation
>> is used.
Hamish:
> > Oh, I did not know that was there. We can work on
> > adding it to trunk's ./configure next.
Sören:
> We ca
Hi,
2011/11/29 Hamish :
> Hamish:
>> > I am looking to add OpenMP support to v.surf.bspline
> ...
>
> Sören wrote:
>> Try r49406.
>> You need to separate the computation for j == 0 and j > 0.
>
> nice, thanks.
>
>> > b) 3.5x speedup is very nice, but any way to improve
>> > on that 40% efficiency
Hamish:
> > I am looking to add OpenMP support to v.surf.bspline
...
Sören wrote:
> Try r49406.
> You need to separate the computation for j == 0 and j > 0.
nice, thanks.
> > b) 3.5x speedup is very nice, but any way to improve
> > on that 40% efficiency loss?
>
> The speedup is better as larg
Hi Hamish,
2011/11/28 Hamish :
> Hi,
>
> On June 2, 2011, Soeren wrote:
>> Have a look at:
>> http://grass.osgeo.org/wiki/OpenMP
>>
>> There are only a few modules using OpenMP (r.gwflow, r3.gwflow and
>> r.solute.transport). Parts of the gpde and gmath libraries in grass
>> 6.5 and 7 are parallel
