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Recent Topics

hi, everyone. I see it from here : http://www.paraview.org/catalyst-adaptors/ ...

Author: CatDog
Date: Sun, 12 Feb 2017 10:49:54 UTC
Link:
Dear all, I'm Antonio Garcia-Uceda, researcher on Flux Reconstruction methods. I'd like to ask you whether you could provide me with a estimation of the number of floating point operations needed for the different pointwise operators in PyFR (separately if possible). In particular, the computati ...

Author: Antonio Garcia-Uceda
Date: Mon, 06 Feb 2017 15:42:48 UTC
Link:
Dear all, I'd like to know whether it'd be possible to obtain the following info about the physics simulations in the paper "Towards Green Aviation with Python at Petascale" worth of the Gordom Bell Prize: - approx. physical time step - total nb iterations - nb chord lenghts simulated. ...

Author: Antonio Garcia-Uceda
Date: Thu, 26 Jan 2017 16:30:29 UTC
Link:
Dear all, My name is Cristale Garnica. I am working on implementing FR algorithm to simulate a Wall-jet configuration. I created a simple mesh to start and an .ini file, but I have been getting NaNs problems when I don't use a controller and error 'Minimum sized time step rejected' while using ...

Author: Cristale Garnica
Date: Thu, 26 Jan 2017 15:42:07 UTC
Link:
Hi, everyone. I just tested the dual time stepping for euler vortex case in the examples using following *.ini configuration: [solver-time-integrator] formulation = dual scheme = bdf2 pseudo-scheme = tvd-rk3 tstart = 0.0 tend = 100.0 dt = 1 pseudo-dt = 0.01 controller = none pseudo-niters-max = ...

Author: CatDog
Date: Tue, 24 Jan 2017 15:03:08 UTC
Link:
Hi, everyone I am trying to use dual stepping with following settiing: [solver-time-integrator] formuation = dual scheme = bdf2 pseudo-scheme = euler tstart = 0.0 tend = 100.0 dt = 0.005 pseudo-dt = 0.001 controller = none pseudo-niters-max = 20 pseudo-niters-min = 5 pseudo-aresid = 1e-5 pseudo-rr ...

Author: CatDog
Date: Mon, 23 Jan 2017 02:11:48 UTC
Link:
I am running into some confusions about the CGNS lib. The CGNS 3.3.0 is too much newer than my CentOS 6. So I have to compile it with hdf5 (and szip, I am not sure if it is necessary). However, after that, when I tried to import CGNS grid. wget http://cgns.sourceforge.net/CGNSFiles/Chris/bump.c ...

Author: CatDog
Date: Thu, 12 Jan 2017 14:24:47 UTC
Link:
Hello, everyone I am testing the installation of pyfr1.5.0 on a single-core VPS on bandwagonhost with centos 6. Because the softwares' versions of the OS are very old, the python 3 is installed using anaconda, and the gcc 4.9.2 is installed using devtoolset-3 of RHSCL. All dependency and version ...

Author: CatDog
Date: Thu, 12 Jan 2017 00:40:38 UTC
Link:
Hi guys! I happened to find an image showing the acoustic results solved by PyFR. Just curious if it is obtained by DNS or LES or some hybrid acoustic analogies? Thanks and Merry Christmas to all! ...

Author: Zeronaire
Date: Wed, 21 Dec 2016 03:18:27 UTC
Link:
Hi, since I want to perforam a transitional flat plate boundary layer calculation, I want to start at Re=100.000 at my inlet. Therefore is it possible to access the coordinates at the inlet and export them in order to map a predefined initial solution (tabulated one), or even better, is it ...

Author: Gabriel Axtmann
Date: Tue, 20 Dec 2016 07:16:13 UTC
Link:
Hi, since I am new to pyFr I have a little issue. I set up a simple test case. 2D Blasius Boundary layer at Ma=0.4 The mesh was created by Pointwise and exported in pyfrm format. Also the ini file are adapted by using pyfr tutorials The problem is I got always NaNs in the residual.csv, so where is ...

Author: Gabriel Axtmann
Date: Mon, 19 Dec 2016 09:32:51 UTC
Link:
Hello everyone! 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 ...

Author: Jonny Hyman
Date: Wed, 14 Dec 2016 05:02:04 UTC
Link:
Hi there! Really excited to get into the awesome new world of PyFR! So far as I can tell you guys have done a beautiful job! I'm having an issue with dependencies, or running into a bug? Not sure which... Calling any "pyfr run -b cuda mesh.pyfrm init.ini" command spits out the following ...

Author: Jonny Hyman
Date: Sat, 10 Dec 2016 05:14:53 UTC
Link:
Dear all, First of all, I'd like to ask you whether you have run the test case Taylor-Green vortex with PyFR. If so, I presume you have implemented a the plug-in for PyFR to compute the global quantities needed to validate this test case: integrals of kinetic energy, dissipation rate of energy, ...

Author: Antonio Garcia-Uceda
Date: Thu, 08 Dec 2016 08:50:39 UTC
Link:
Hi, I am executing Pyfr 1.5.0 on duel xeon 2630v4 10c per node with 2 nodes. As I scale the mpirun -np up to 40 the performance is drastically reduced. It also appears to be capped at 50% of the maximum cpu performance. Any insight is appreciated Regards Liam ...

Author: Liam Doult
Date: Wed, 07 Dec 2016 15:46:35 UTC
Link:

Latest Release

PyFR 1.5.0:

  • Added dual time-stepping.
  • Added support for CUDA aware MPI.

Join our Team

Postdoctoral Position - GPU Accelerated High-Order Computational Fluid Dynamics
Summary: A fully funded Postdoctoral position is currently available. The project, will involve development of PyFR, an open-source high-order massively-parallel cross-platform CFD solver, as well as its application to solve a range of challenging unsteady flow problems. Candidates should hold, or expect to obtain, a PhD in a numerate discipline from a world-leading university.

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