<div dir="ltr">Hi Dean, <div>Thanks so much for your patient answer, which is very helpful!</div><div><br></div><div>Best</div><div>Sheng</div><div><a href="http://www.mcs.anl.gov/~shdi">http://www.mcs.anl.gov/~shdi</a></div></div><div class="gmail_extra"><br><div class="gmail_quote">2015-02-06 14:39 GMT-06:00 Dean Townsley <span dir="ltr"><<a href="mailto:Dean.M.Townsley@ua.edu" target="_blank">Dean.M.Townsley@ua.edu</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Hi Sheng,<br>
<br>
As far as I know it is a mixture of the two. Some, maybe even most,
of the things in SimulationMain are just test problems and some are
more real science cases. Though typically in the latter case, as
you have mentioned, the default parameters in the parameter files
distributed with flash may not be similar to those used in science
runs, since the defaults are often those used in small scale testing
rather than in full production.<br>
<br>
So both you and your supervisor are correct :)<br>
<br>
To give some examples...<br>
<br>
Sedov is largely a test problem<br>
<br>
Sod is also largely a test problem<br>
<br>
StirTurb I believe is a real stirred turbulence simulation used for
science runs or at least similar to those from Benzi et al. (<a href="http://adsabs.harvard.edu/abs/2008PhRvL.100w4503B" target="_blank">2008PhRvL.100w4503B</a>).<br>
<br>
Cellular is a detonation simulation that appears to be at least
quite similar to the basic setup used by Timmes et al. (<a href="http://adsabs.harvard.edu/abs/2000ApJ...543..938T" target="_blank">2000ApJ...543..938T</a>).
Though I think the default parameters are a little odd due to the
necessarily low resolution and I'm unsure if the way the "noise" is
added is quite what one might expect.<br>
<br>
Flame1StageNoise is a test problem that is, I believe, still missing
the "noise" part. (sorry about that!) But it is similar to the
setup used in Townsley et al. (<a href="http://adsabs.harvard.edu/abs/2007ApJ...668.1118T" target="_blank">2007ApJ...668.1118T</a>)
to measure acoustic noise generated by the flame propagation
technique.<br>
<br>
RTFlame is a science setup to study Rayleigh-Taylor unstable flames
(for Type Ia supernovae). Similar to those in Khokhlov (<a href="http://adsabs.harvard.edu/abs/1995ApJ...449..695K" target="_blank">1995ApJ...449..695K</a>),
but post-dating that work by quite a bit. I believe this has been
used as an acceptance test problem on some big machines -- but,
again, not with the parameters in the distributed parameter files.<br>
<br>
I'm sure there are other examples from other areas for both test and
science setups, these are just some of the ones that I am familiar
with. I expect the CCSN setup is at least mostly similar to a real
core collapse supernova setup. I think there are some messages in
the mailing list archive discussing this. Also probably the
difference between a "test" problem and a science problem is
somewhat blurry in some cases. Especially when the "science" is
development of a computational technique or algorithm.<br>
<br>
<br>
Hopefully that helps,<br>
Dean<div><div class="h5"><br>
<br>
<br>
<div>On 02/05/2015 05:13 PM, Di Sheng wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi all,
<div>This may be a stupid question. <br>
Are the applications found in the SimulationMain/ just test
cases (toy applications)? <br>
<br>
</div>
<div>In fact, I am looking for some real production HPC
applications for evaluating our MPI error detector. My
supervisor argued that these test cases are just toy
applications. Instead, I need to use real production
applications from real users. </div>
<div>Could any one answer me? </div>
<div><br>
</div>
<div>From my point of view, these applications are real world
applications. The users just need to tune the input parameters
to fit their testing demand in most of cases. Am I right? </div>
<div><br>
</div>
<div>thanks!!</div>
<div><br>
</div>
<div>Best</div>
<div>Sheng </div>
</div>
</blockquote>
<br>
</div></div></div>
</blockquote></div><br></div>