<div dir="ltr"><div><div><div>Hi Wei-keng,<br><br></div>I think you are doing it the right way. However the I/O part is mostly the Output in this idealized case.<br><br></div>If you need a more realistic example, complete with realistic input, I could provide you one from<br>
our operational forecasts or simulations. We try to limit the output size, but you can change<br>the configuration to create huge output files. You may also need to know how to run the<br>WRF pre-processing software. <br>
<br>Let me know.<br><br></div>cheers,<br>saji<br></div><div class="gmail_extra"><br clear="all"><div><div dir="ltr"><br>Saji N Hameed,<br>ARC-ENV, Center for Advanced Information Science and Technology,<br>University of Aizu, Tsuruga, Ikki-machi,<br>
Aizuwakamatsu-shi, Fukushima 965-8580,<br>Japan<br> <br>Tel: +81242 37-2736<br>Fax:+81242 37-2760<br> email: <a href="mailto:saji@u-aizu.ac.jp" target="_blank">saji@u-aizu.ac.jp</a><br> url: <a href="http://enformtk.u-aizu.ac.jp" target="_blank">http://enformtk.u-aizu.ac.jp</a><br>
bib: <a href="http://www.researcherid.com/rid/B-9188-2009" target="_blank">http://www.researcherid.com/rid/B-9188-2009</a><div>code: <a href="https://github.com/sajinh" target="_blank">https://github.com/sajinh</a></div>
</div></div>
<br><br><div class="gmail_quote">On Wed, Jun 18, 2014 at 7:29 AM, Wei-keng Liao <span dir="ltr"><<a href="mailto:wkliao@eecs.northwestern.edu" target="_blank">wkliao@eecs.northwestern.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
<br>
I am studying WRF's I/O pattern and wondering if I can get some<br>
recommendations on choosing a test case and its run-time parameters.<br>
The ideal parameter setting is that can produce a large domain size<br>
(I/O amount) and a short run time (with 3-5 output time snapshots).<br>
<br>
I tried the test case "test/em_tropical_cyclone" and changed the<br>
following parameters in file namelist.input.<br>
run_days = 0,<br>
run_hours = 0,<br>
run_minutes = 10,<br>
history_interval = 5,<br>
s_we = 1,<br>
e_we = 401,<br>
s_sn = 1,<br>
e_sn = 401,<br>
s_vert = 1,<br>
e_vert = 121,<br>
<br>
The above settings took about 10 minutes and produced an output file<br>
of size 3.3GB (with 3 time snapshots). I wonder if I am on the right<br>
track and will very appreciated if the experts in the WRF community<br>
can kindly provide me additional suggestions.<br>
<br>
Wei-keng Liao<br>
<br>
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</blockquote></div><br></div>