I am trying to buffer a very large file at a high
resolution to ensure accuracy of road definition.
I am using GRASS version 4.1.3 NRCS version operating on
SunOS.
r.buffer input='proad@PERMANENT' output='proadbuff'
units='meters' distances='3'
ERROR: G_malloc: out of memory
I was thinking that I had buffered a similar coverage very
recently and am not sure why am incurring this error...
Any suggestions??
Many Thanks
Anna Edwards
University of Georgia
Anna Edwards wrote:
I am trying to buffer a very large file at a high
resolution to ensure accuracy of road definition.I am using GRASS version 4.1.3 NRCS version operating on
SunOS.r.buffer input='proad@PERMANENT' output='proadbuff'
units='meters' distances='3'ERROR: G_malloc: out of memory
I was thinking that I had buffered a similar coverage very
recently and am not sure why am incurring this error...Any suggestions??
Many Thanks
Anna Edwards
University of Georgia
Anna Edwards,
I had the same problem. The cause of this probelm is not enough
swap space. To see how much swap space you have run /etc/pstat -T
you see the total amount of swap sapce and the total amount being used.
To increase this swap space
login as su root
cd to a directory where you can use 100MBs of space.
mkdir -v 100MB swapfile
after this run swapon -a( This will tirn on the new swap space)
run /etc/pstat -T you see the new swap space.
Also clean out your /tmp, /var/tmp, /var/adm/messages if the are large.
the way I do it is to copy an empty file over the large message file.
Johnny Duke
GIS Tech
USDA/NRCS
jduke@ar.nrcs.usda.gov