Hi Jon,
I have
attached a number of files containing (I hope) what you want and added
the
dataset xml and des file. There are 10 netCDF files, one for each year
of the
dataset. I have provided an ncdump for the 1994 file. I am using LAS
6.3. I
have copied LASinfo.pl into server. I had previously modified
std_initialize.jnl
by adding a line “set mem/size=200” at the end. Unfortunately
although this worked at the start it seemed that this request failed
after the
server had been running for a while. Indeed this was causing the system
to fail
when it really did not need that much memory. I have now set the memory
to 128
using in las.xml
(<memsize>128<</memsize>
in
the <properties><ferret> group).
The example
that has failed has asked for
just over 100 Mwords. The machine itself only has 512Mbytes and if a
Ferret
word is 4 bytes we are very close to the entire machine memory.
I am not
sure what is reasonable to expect
from the LAS server. Some guidance would be appreciated.
The LAS
server is at
http://www.marine.csiro.au/las/servlets/dataset
Regards
Peter Turner
-----Original
Message-----
From: Jonathan
Callahan
[mailto:Jonathan.S.Callahan@noaa.gov]
Sent: Wednesday, 7
July 2004 2:44
AM
To: Turner, Peter
(Marine, Hobart)
Cc: pbmoses@ucsd.edu;
oar.pmel.las_users@noaa.gov
Subject: Re: memsize
ferret error
Peter,
It would be helpful to know the following:
·
version of LAS
·
precise LAS request (xml request object)
·
ncdump -h of the data file
With
these we should be
able to come up with similar tests at our end to try and mimic the
problem.
Of course, having access to your LAS is very useful so that we can see
the
problems. And putting the las/etc/LASinfo.pl (<6.3) or
las/bin/LASinfo.pl (>=6.3) cgi script in las/server/ will allow
us to do some debugging remotely.
-- Jon
Peter.J.Turner@csiro.au
wrote:
Hi Phil,
I have had the same problem with the LAS server I have setup. I
adjusted the ferret memory size and that helped but did not solve the
problem. I am having some difficulty understanding why Ferret seems to
need large amounts of memory. Perhaps some others who have more
experience with LAS and Ferret could provide some guidance about how to
determine Ferret memory requirements?
Cheers
Peter Turner
-----Original Message-----
From: owner-las_users@pmel.noaa.gov
[mailto:owner-las_users@pmel.noaa.gov] On Behalf Of Phil Moses
Sent: Saturday, 3 July 2004 3:48 AM
To: las_users
Subject: memsize ferret error
Hello,
With some help from others, we have identified some errors that we have
been getting on our LAS server.
It was suggested that we modify the memsize within the ferret scripts
and see if this helps.
We are upgrading the physical memory of the machine, as we have
identified a need to do this anyway. However, I am curious if anyone can
pin-point the following error.
**ERROR: insufficient memory: 27324000 words were requested.
Will adjusting the memsize in the ferret scripts help resolve this?
I have a few ideas but would like any suggestions from the experts prior
to making the adjustments.
[Tue Jun 1 03:12:53 2004] yes? set
region/x="20.0":"120.0"/y="-20.0":"5.0"/z="5":"5450"/t="16-Jan-1992":"16
-Dec-2002"
[Tue Jun 1 03:12:53 2004] yes? GO "jnls/std_list.jnl" "1" "salt"
"output/4cbe2e1e004de40a4b1ba1a1d69a2c5b.nc" "cdf"
[Tue Jun 1 03:12:53 2004] **ERROR: insufficient memory: 27324000 words
were requested.
[Tue Jun 1 03:12:53 2004] define symbol data_isize
`salt[d=1],return=isize`
[Tue Jun 1 03:12:53 2004] Command file, command group, or REPEAT
execution aborted
[Tue Jun 1 03:13:45 2004] Adding an acceptable error string: "*** NOTE:
".
Thanks,
Phil