[GRASS-dev] Re: comparing r.cost and r.terracost [was: Re: [GRASS-user] affecting cat of closest feature as pixel value]

[Moritz Lennert]

On 15/07/09 15:40, Laura Toma wrote:
> Hi Moritz,
> 
> Terracost  runs in two modes:  in memory (when numtiles=1), and in 
> external memory, using streams (when numtiles>1).   When run without a 
> value for numtiles, it sets numtiles  to the optimal value. In all your 
> tests numtiles was set to 1.   The algorithms in the 2 cases are 
> different, so you also need to test with numtiles>1.

Trying to run with numtiles>1, I get:

TileFactory: Sorting internalstr...
file=/var/tmp/mlennert/terracost.tileStr:cannot read!: Bad address
r.terracost: 
/home/mlennert/SRC/GRASS/grass64_release/dist.i486-pc-linux-gnu/include/grass/iostream/ami_sort_impl.h:91: 
size_t makeRun_Block(AMI_STREAM<T>*, T*, unsigned int, Compare*) [with T 
= ijCostType<costSourceType>, Compare = ijTileCostCompareType]: 
Assertion `err == AMI_ERROR_NO_ERROR || err == AMI_ERROR_END_OF_STREAM' 
failed.
Aborted

And the same, if I change all occurrences of /var/tmp in main.cc to /tmp

Moritz