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Recent Topics

Dear all, I'm trying to solve supersonic cavity flow case at Mach 2.0 using PyFR 1.6.0. The attached files are mesh files and case setup file for the simulation. I would like to set zero velocity inside cavity region (Y <= 0), and uniform velocity (2.366431913, 0) with smooth velocity transition ...

Author: Junichi Fukui
Date: Mon, 15 May 2017 13:57:37 UTC
Link:
Hello all, From the documentation it seems that PyFR itself does not itself create periodic boundary conditions (i.e. define the required connectivity) and hence such must be specified already in the mesh file. In this regards, could folks mention how they create such boundary conditions? ...

Author: Фрэнк Малдун
Date: Wed, 10 May 2017 13:25:07 UTC
Link:
Hello all, When launching PyFR (pyfr run -b openmp -p periodic-hills.pyfrm periodic-hills.ini) it dies with error: KeyError: "'mul' has no providers" would anyone have any ideas what the source of this message might be? Cheers, Frank -- Frank Herbert Muldoon, Ph.D. Mechanical Engineerin ...

Author: Фрэнк Малдун
Date: Fri, 05 May 2017 17:50:26 UTC
Link:
Hi, PyFR started causing core dumps recently. I believe this is the moment the program begins to write to disk, but that may be misleading. I am attaching a log file. The same setup worked on exactly the same version before. There were several updates on this machine like the CUDA driver for ...

Author: Robert Sawko
Date: Fri, 05 May 2017 16:46:01 UTC
Link:
Hello all, I am creating meshes using Gmsh and trying to get them into PyFR, but am running into the following errors. File "/home/fmuldoo/programs/python/lib/python3.6/site-packages/pyfr-1.6.0-py3.6.egg/pyfr/readers/gmsh.py", line 162, in _read_phys_names ValueError: No fluid elements in ...

Author: Фрэнк Малдун
Date: Fri, 05 May 2017 10:48:23 UTC
Link:
Hello all, I am trying to get PyFR running using CGNS format meshes, but have am having no luck. Would anyone have a CGNS file that they have successfully used in PyFR? I am getting failures in PyFR that suggest that there is a somewhat limited subset of CGNS format meshes that PYFR can ...

Author: Фрэнк Малдун
Date: Wed, 03 May 2017 15:07:39 UTC
Link:
Dear PyFR Group, Is there a simple "hello-world" example for advection on a triangular mesh, ideally with periodicity? Something like solid body rotation would be great but ultimately I need to apply it to my own data that is located at triangle nodes. It appears there are more complex cases ...

Author: Phil Wolfram
Date: Tue, 02 May 2017 19:16:39 UTC
Link:
Good afternoon PyFR fans! I have Continuum's Accelerate installed on my workstation and use Conda to install packages. I would like to install PyFR and use the Conda environment (BTW - It's still Python 2.x). Any tips before I jump in? Thanks! Jeff ...

Author: Jeffrey Layton
Date: Mon, 17 Apr 2017 18:11:44 UTC
Link:
Dear All, I have read an article "Brian C. Vermeire, Freddie D. Witherden, Peter E. Vincent: On the utility of GPU accelerated high-order methods for unsteady flow simulations: A comparison with industry-standard tools. J. Comput. Physics 334: 497-521 (2017).", and I am trying to simulate the ...

Author: Junichi Fukui
Date: Wed, 29 Mar 2017 10:13:01 UTC
Link:
Tuesday, 14 March 2017 Peter & Freddie, I believe the mesh export issue from Pointwise using the PyFR exporter has been resolved in PyFR 1.6. I still seem to have issues running using the OpenCL backend which persistently complains about an invalid workgroup size. It use to work at one ...

Author: Zach Davis
Date: Tue, 14 Mar 2017 23:37:37 UTC
Link:
Dear All, We have released PyFR v1.6.0. New Features: - Added incompressible Euler and Navier-Stokes solvers. - Added support for Intel KNL. - Added libxssm as a matrix multiplication provider for C/OpenMP backend. - Added kernel caching for C/OpenMP backend. Download: http://www.pyfr.o ...

Author: Vincent, Peter E
Date: Sun, 12 Mar 2017 02:24:11 UTC
Link:
Hello, I am still playing with SD7003 benchmark. When it runs, it scales really well. I will share my results in another thread when they're ready, but I am experiencing some strange freezing behaviors. I am almost sure this is down to our cluster or software stack and I will be getting our ...

Author: Robert Sawko
Date: Mon, 06 Mar 2017 10:52:35 UTC
Link:
All, I have attached my an image of my initial 2-D mesh consisting entirely of quads (simple flow over a cylinder). I’ve run a simulation out 7.5 seconds using a time step of 1.0e-04, and it ran to completion leaving me with a series of *.pyfrs files. After converting these into *.vtu files ...

Author: Zach Davis
Date: Fri, 03 Mar 2017 14:53:23 UTC
Link:
Hi, I posted my first go at benchmarking PyFR against CUDA backend. https://github.com/robertsawko/PyFR-bench I'd like to work more on it and extend it for the remaining cases in your JCP paper. The actual study is in isentropic_vortex.sh and I apologise for a lot of cluster specific ...

Author: Robert Sawko
Date: Thu, 02 Mar 2017 17:19:41 UTC
Link:
All, I get the following traceback error when attempting to run with the attached *.ini file: Traceback (most recent call last): File "/Users/zdavis/Applications/PyFR/pyfr/pyfr", line 257, in main() File "/Users/zdavis/Applications/PyFR/pyfr/pyfr", line 110, in main ...

Author: Zach Davis
Date: Wed, 01 Mar 2017 17:03:21 UTC
Link:

Latest Release

PyFR 1.6.0:

  • Added incompressible Euler and Navier-Stokes solvers.
  • Added support for Intel KNL.
  • Added libxssm as a matrix multiplication provider for C/OpenMP backend.
  • Added kernel caching for C/OpenMP backend.

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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