[GRASS-user] v vol rst super slow

[Markus Neteler]

On Wed, May 23, 2018 at 1:18 PM, Sören Gebbert
<soerengebbert at googlemail.com> wrote:
> Hi,
> your region settings are interesting.
> Do you really need a resolution of 5m in x,y plane and 1m in z direction?
> As a result you have 23,507,876,616 voxel to compute, but only 76887
> points for interpolation.
>
> I would suggest you reduce the resolution of your region
> significantly, at least to test the interpolation settings.

Indeed, at least to get a complete run.

> Best regards
> Soeren
>
> 2018-05-23 13:09 GMT+02:00 Francois Chartier <fra.chartier at gmail.com>:
>> see below
>> g.region -3p
>>
>> projection: 1 (UTM)
[...]
>> cells:      76572888
>> cells3:     23507876616
[...]
>> v.vol.rst input=BHMat1All_May12 at Toronto wcolumn=cat dmin=0.1
>> 25 records selected from table
>> Processing all selected output files will require 0 bytes of disk space for
>> temp files
>> WARNING: Points are more dense than specified 'DMIN'--ignored 65 points
>> (remain 76822)
>> WARNING: Unable to create <(null)> raster map without cross_input raster map
>> being specified

that comes from
vector/v.vol.rst/main.c" line 640

To be studied...

Markus