[GRASS-dev] r.watershed and swap memory

[Yann Chemin]

Hi Hamish,

my mistake, forgot to include that htop one:

VIRT 6323Mb
RES 5232Mb

noted the terraflow options, i am just waiting for this r.watershed
experiment to conclude...

Yann

On 19/03/2008, Hamish <hamish_b at yahoo.com> wrote:
> Yann Chemin wrote:
>  > 149,040,000 Cells for the srtm 90m of Mekong river.
>  > computer is on 8Gb RAM.
>  > About 65 % done after 43.x hours, r.watershed basically does it, it
>  > seems.
>  > Of course efficiency is a problem here, but it does it.
>
>
> how much RAM is the process using? (check with `top`, VIRT RES SHR)
>
>
>
>  > yes r.terraflow goes to /tmp, that is considered a bug to me, not an
>  > enhancement...
>  > The location from which we have the GRASS dataset is generally the
>  > best guess for large empty Disk space.
>
>
> note these r.terraflow options:
>         memory   Main memory size (in MB)
>                  default: 300
>     STREAM_DIR   Location of intermediate STREAMs
>                  default: /var/tmp
>
>
>  by making memory= larger the required tmp file space should be smaller.
>  you can set STREAM_DIR= somewhere else if you like.
>
>
>
>  Hamish
>
>
>
>
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