[GRASS-user] r.terraflow

[Francesco Mirabella]

Hi all,
I am trying to get flow directions out of a dem (10m resolution). I have 
tried r.terraflow which gives me the error below:
Can anyone tell me if I am doing something wrong and how can I solve this?
many thanks
Francesco
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GRASS 6.4.0RC5 (WGS84_UTM33):~ > r.terraflow elevation=copia.dem 
filled=flood direction=flow swatershed=sink accumulation=accumulation 
tci=tci d8cut=infinity memory=300 STREAM_DIR=/tmp stats=stats.out

STREAM temporary files in /tmp  (THESE INTERMEDIATE STREAMS WILL NOT BE 
DELETED IN CASE OF ABNORMAL TERMINATION OF THE PROGRAM. TO SAVE SPACE 
PLEASE DELETE THESE FILES MANUALLY!)
file stats.out exists - renaming.
MFD flow direction
D8CUT=999999986991104.000000
Memory size: 300.00M (314572800) bytes
Memory manager registering memory in MM_IGNORE_MEMORY_EXCEEDED mode.
total elements=67071935, nodata elements=8624611
largest temporary files:
FILL: 3.50G (3756028360) [67071935 elements, 56B each]
FLOW: 4.35G (4675785920) [58447324 elements, 80B each]
Will need at least 8.71G (9351571840) space available in /tmp
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COMPUTING FLOW DIRECTIONS
classifying nodata (inner & boundary)
EMPQUEUEADAPTIVE: starting in-memory pqueue
EMPQUEUEADAPTIVE: available memory: 297.929MB
EMPQUEUEADAPTIVE: desired memory: 297.929MB
sz_stream: 270388 buf_arity: 200 mm_overhead: 8665728 mm_avail: 312400802.
EMPQUEUEADAPTIVE: memory overhead set to 8.26428MB
EMPQUEUEADAPTIVE: pqsize set to 37966884
assigning preliminary directions
finding flat areas (plateaus and depressions)
file=/tmp/STREAM_rSqNkF:cannot read!: Bad address
r.terraflow: 
/usr/local/svn/grass/grass640_rc5/dist.i686-pc-linux-gnu/include/grass/iostream/ami_sort_impl.h:91: 
size_t makeRun_Block(AMI_STREAM<T>*, T*, unsigned int, Compare*) [with T 
= plateauType, Compare = ijCmpPlateauType]: Assertion `err == 
AMI_ERROR_NO_ERROR || err == AMI_ERROR_END_OF_STREAM' failed.
Abortito
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