Dear Peter, I hope you're doing well.
I am a PhD student at MIT and interested in parallel MPI based in-situ simulations. You mentioned in this post from 2016 that you're working on in-situ animation while simulation is taking place with PyFR. Do you have any models to demo this and some tutorials on how to get it to work please? I am new to PyFR and just got it installed and have the simple couette_flow_2d example working properly with MPI on Linux. I am also able to post-process the solution files manually by converting the *.pyfrs files into *.vtu and then animating them in Paraview. Any guidance on doing this in-situ is appreciated. Many thanks. Sincerely, Mohamad Sindi MIT On Thursday, December 15, 2016 at 2:55:00 AM UTC-5, Vincent, Peter E wrote: > > Hi Jonny, > > Regarding: > > Interesting! When you say PyFR isn't really used for simulations of > sufficient scale, > > > I think you mis-read Freddie’s message, which said: > > In general, the kinds of simulations that PyFR is used for are of >> sufficient scale that it is simply not practical to work with more than >> a single solution file at a time. > > > Typical simulations are of such scale that lumping a time series into a > single file is not practical/sensible. Typically what we do is script > paraview to process a series of individual files and produce an animation. > And more recently we have been working to add in-situ vis capabilities such > that PyFR can generate images, to make an animation, on-the-fly as the > simulation proceeds. They latter approach significantly reduces the amount > of data written to disk. > > Peter > > Dr Peter Vincent MSci ARCS DIC PhD > Reader in Aeronautics and EPSRC Fellow > Department of Aeronautics > Imperial College London > South Kensington > London > SW7 2AZ > UK > > web: www.imperial.ac.uk/aeronautics/research/vincentlab > twitter: @Vincent_Lab <https://twitter.com/Vincent_Lab> > > > > > > On 14 Dec 2016, at 16:00, Jonny Hyman <[email protected] <javascript:>> > wrote: > > Interesting! When you say PyFR isn't really used for simulations of > sufficient scale, do you mean computationally, spatially, or based on > complexity? It seems to me that the flux reconstruction approach should be > scalable to many different flows, so I'm a bit confused as to what you > mean. :) > > Thanks so much for your helpful information! > > You guys are the best! > > On Tuesday, December 13, 2016 at 10:04:35 PM UTC-8, Freddie Witherden > wrote: >> >> On 13/12/2016 21:02, Jonny Hyman wrote: >> > I'm doing some simple tests to get acquainted with PyFR. >> > >> > I would like to have a *time playback *in Paraview? I can get the >> single >> > solutions from the .pyfrs files and the export functionality to .vtu, >> > but I'm not super clear on how to make a 4-dimensional simulation - >> > effectively mashing all of the pyfrs solutions into one file or set of >> > arrays which can be played back over time. >> > >> > Does anyone have tips? I may just write a Python script to merge all of >> > the data in the .pyfrs files into a time dependent vtu but I don't want >> > to go through the trouble if there's some simpler solution. >> >> You should be able to open up all of the .vtu files at once in ParaView >> and then step through them using the built in UI. >> >> In general, the kinds of simulations that PyFR is used for are of >> sufficient scale that it is simply not practical to work with more than >> a single solution file at a time. As such there has been no work around >> merging multiple files together. >> >> Regards, Freddie. >> >> > -- > You received this message because you are subscribed to the Google Groups > "PyFR Mailing List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > To post to this group, send email to [email protected] > <javascript:>. > Visit this group at https://groups.google.com/group/pyfrmailinglist. > For more options, visit https://groups.google.com/d/optout. > > > -- You received this message because you are subscribed to the Google Groups "PyFR Mailing List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. Visit this group at https://groups.google.com/group/pyfrmailinglist. For more options, visit https://groups.google.com/d/optout.
