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Recent Topics

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:
Dear all, I'm trying to run the test case: Inviscid transonic flow around NACA0012, from the previous 3rd High-Order Workshop (you can find a description below): https://www.grc.nasa.gov/hiocfd/wp-content/uploads/sites/22/case_c1.2.pdf I've run the case on a coarse mesh of 2240 cells, order p3, ...

Author: Antonio Garcia-Uceda
Date: Wed, 01 Mar 2017 09:29:52 UTC
Link:
Hello, I have a quick exploratory question. At the moment our clusters have mvapich2 installed but it appears to me that none of them is an MPI-aware version. I was just curious if anyone has already looked into potential performance benefits when using CUDA-aware MPIs. I realize it's a new ...

Author: Robert Sawko
Date: Tue, 28 Feb 2017 22:41:22 UTC
Link:
Dear All, I just installed PyFR on our GPU cluster - what a breeze. I can run your examples and tutorials with CUDA backend and I can see them being offloaded to the GPU. Metis also appears to cooperate. My question is how to configure multiple GPUs on a single node. Is there a way to make sure ...

Author: Robert Sawko
Date: Tue, 28 Feb 2017 06:15:20 UTC
Link:
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:

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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