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From: "endeitz (sent by Nabble.com)" <lists at nabble.com>
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To: grasslist at baylor.edu
Subject: Re: r.terraflow failured
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>From the thread history below, I surmised that the >2GB exception was
fixed. However, when I use the latest snapshop binaries I still get
the error. I have verified that my kernel supports large files by
creating several >2GB files. Anyone have any advice? I have pasted
the output below.
(using grass-6.1.cvs-i686-pc-linux-gnu-21_01_2006.tar.gz on Redhat 9.0)
-----------------------------------------------
GRASS 6.1.cvs (lcra):~/grassinstall > r.terraflow elev=test
filled=test_out direction=test_dir swatershed=test_shed
accumulation=test_acc tci=test_tci
r.terraflow December 2003
region size is 28458 x 28438
cell test header compatible with region header
elevation stored as FLOAT (4B)
STREAM temporary files in /var/tmp (THESE INTERMEDIATE STREAMS WILL
NOT BE DELETED IN CASE OF ABNORMAL TERMINATION OF THE PROGRAM. TO SAVE
SPACE PLEASE DELETE THESE FILES MANUALLY!)
MFD flow direction
D8CUT=999999986991104.000000
memory size: 300.00M (314572800) bytes
Memory manager registering memory in MM_WARN_ON_MEMORY_EXCEEDED mode.
reading data from test to stream /var/tmp/STREAM_Ke0baI: 63% File
size limit exceeded (core dumped)
GRASS 6.1.cvs (lcra):~/grassinstall > ls -lh /var/tmp/
total 2.1G
-rw------- 1 endeitz endeitz 2.0G Jan 27 13:43 STREAM_Ke0baI
GRASS 6.1.cvs (lcra):~/grassinstall > dd if=/dev/zero of=testsize
bs=1024k count=3000
3000+0 records in
3000+0 records out
GRASS 6.1.cvs (lcra):~/grassinstall > ls -lh /var/tmp
total 5.0G
-rw------- 1 endeitz endeitz 2.0G Jan 27 13:43 STREAM_Ke0baI
-rw-r--r-- 1 endeitz endeitz 2.9G Jan 27 13:47 testsize
----------------------------------end output
Thanks,
Ed.
David Finlayson wrote:
>
> Thanks Laura.
>
> David
>
> On 7/5/05, Laura Toma wrote:
>> I changed in r.terraflow/IOStream/lib/src/Makefile
>>
>> line9: CXX = g++ -Wall
>>
>> to
>>
>> CXX = g++ -Wall -D_FILE_OFFSET_BITS=64
>>
>> Then I cleaned everything, and recompiled, and it works now for me (on
>> a Linux machine).
>>
>> cd IOStream/lib/src/
>> make clean
>> make
>> cd ..
>> make
>> cd ../../
>> gmake
>> etc
>>
>>
>>
>> > orkun wrote:
>> >> thank you
>> >> You are right.
>> >> that file made my disk full.
>> >> Although I used a small region for testing purposes. It produced
>> >> giantic files.
>> >> I do not know what will happen if I use whole region ?
>> >>
>>
>>
>> The files produced have a maxsize of 80N bytes, where N = nrows x
>> ncols of your grid. They will be smaller, if your grid contains (a lot
>> of) nodata. Check out the html page of r.terraflow for details.
>>
>> As you run terraflow, the first lines will tell you what is the grid
>> size, and the max size of the temporary files.
>> How small was the region you tried it on? To produce a file >2GB, you
>> must have used a grid larger than 3600x3600 cells.
>>
>> Hope this helps,
>> Laura
>>
>>
>
>
> --
> David Finlayson
> Marine Geology & Geophysics
> School of Oceanography
> Box 357940
> University of Washington
> Seattle, WA 98195-7940
> USA
>
> Office: Marine Sciences Building, Room 112
> Phone: (206) 616-9407
> Web: http://students.washington.edu/dfinlays
>
>
>
--
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>From the thread history below, I surmised that the >2GB exception
was fixed. However, when I use the latest snapshop binaries I
still get the error. I have verified that my kernel supports
large files by creating several >2GB files. Anyone have any
advice? I have pasted the output below.
<br>
<br>(using grass-6.1.cvs-i686-pc-linux-gnu-21_01_2006.tar.gz on Redhat 9.0)
<br>
<br>-----------------------------------------------
<br>GRASS 6.1.cvs (lcra):~/grassinstall > r.terraflow elev=test
filled=test_out direction=test_dir swatershed=test_shed
accumulation=test_acc tci=test_tci
<br>r.terraflow December 2003
<br>region size is 28458 x 28438
<br>cell test header compatible with region header
<br>elevation stored as FLOAT (4B)
<br>STREAM temporary files in /var/tmp (THESE INTERMEDIATE
STREAMS WILL NOT BE DELETED IN CASE OF ABNORMAL TERMINATION OF THE
PROGRAM. TO SAVE SPACE PLEASE DELETE THESE FILES MANUALLY!)
<br>MFD flow direction
<br>D8CUT=999999986991104.000000
<br>memory size: 300.00M (314572800) bytes
<br>Memory manager registering memory in MM_WARN_ON_MEMORY_EXCEEDED mode.
<br>reading data from test to stream /var/tmp/STREAM_Ke0baI:
63% File size limit exceeded (core dumped)
<br>
<br>GRASS 6.1.cvs (lcra):~/grassinstall > ls -lh /var/tmp/
<br>total 2.1G
<br>-rw------- 1 endeitz endeitz
2.0G Jan 27 13:43 STREAM_Ke0baI
<br>
<br>GRASS 6.1.cvs (lcra):~/grassinstall > dd if=/dev/zero
of=testsize bs=1024k count=3000
<br>3000+0 records in
<br>3000+0 records out
<br>
<br>GRASS 6.1.cvs (lcra):~/grassinstall > ls -lh /var/tmp
<br>total 5.0G
<br>-rw------- 1 endeitz endeitz
2.0G Jan 27 13:43 STREAM_Ke0baI
<br>-rw-r--r-- 1 endeitz endeitz
2.9G Jan 27 13:47 testsize
<br>
<br>----------------------------------end output
<br>
<br>Thanks,
<br>
<br>Ed.
<br>
<br>
<br>
<br><blockquote style="border-left: 2px solid #666666; border-top: 1px
solid #eeeeee; margin: 15px 20px;">
<div style="color: #333333; font: bold 11px
tahoma,geneva,helvetica,arial,sans-serif; padding: 5px 10px;">David
Finlayson wrote:</div>
<div style="color: #333333; font: 11px
tahoma,geneva,helvetica,arial,sans-serif; padding: 5px 10px;">Thanks
Laura.
<br>
<br>David
<br>
<br>On 7/5/05, Laura Toma <ltoma at bowdoin.edu> wrote:
<br>> I changed in r.terraflow/IOStream/lib/src/Makefile
<br>>
<br>> line9: CXX = g++ -Wall
<br>>
<br>> to
<br>>
<br>> CXX = g++ -Wall -D_FILE_OFFSET_BITS=64
<br>>
<br>> Then I cleaned everything, and recompiled, and it works now for me (on
<br>> a Linux machine).
<br>>
<br>> cd IOStream/lib/src/
<br>> make clean
<br>> make
<br>> cd ..
<br>> make
<br>> cd ../../
<br>> gmake
<br>> etc
<br>>
<br>>
<br>>
<br>> > orkun wrote:
<br>> >> thank you
<br>> >> You are right.
<br>> >> that file made my disk full.
<br>> >> Although I used a small region for testing purposes.
It produced
<br>> >> giantic files.
<br>> >> I do not know what will happen if I use whole region ?
<br>> >>
<br>>
<br>>
<br>> The files produced have a maxsize of 80N bytes, where N = nrows x
<br>> ncols of your grid. They will be smaller, if your grid
contains (a lot
<br>> of) nodata. Check out the html page of r.terraflow for details.
<br>>
<br>> As you run terraflow, the first lines will tell you what is the grid
<br>> size, and the max size of the temporary files.
<br>> How small was the region you tried it on? To produce a
file >2GB, you
<br>> must have used a grid larger than 3600x3600 cells.
<br>>
<br>> Hope this helps,
<br>> Laura
<br>>
<br>>
<br>
<br>
<br>--
<br>David Finlayson
<br>Marine Geology & Geophysics
<br>School of Oceanography
<br>Box 357940
<br>University of Washington
<br>Seattle, WA 98195-7940
<br>USA
<br>
<br>Office: Marine Sciences Building, Room 112
<br>Phone: (206) 616-9407
<br>Web: <a href="http://students.washington.edu/dfinlays"
target="_top" rel="nofollow">http://students.washington.edu/dfinlays</a>
</div>
</blockquote>
<br><hr align="left" width="300">
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r.terraflow failured</a><br>
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