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## Recent Topics

Hello, when attempting to run one of the example cases, I receive this error. Does anybody know what the solution to this could be? > htpc@htpc:~/Downloads/PyFR/examples/inc_cylinder_2d$pyfr run mesh.pyfrm > inc_cylinder_2d.ini -b opencl > Traceback (most recent call last): > File ... Author: Joel Date: Thu, 16 Nov 2017 08:40:13 UTC Link: Dear all, Just have a question. When using cuda backend, must the entire mesh be transfered from the CPU memory to GPU memory before the simulation starts? I just met that problem "out of memory" when the mesh was over 12,0000 cells or order got higer, since we only have one GPU. So is it able ... Author: Will Date: Wed, 15 Nov 2017 04:17:40 UTC Link: Dear all, I recently tested a cavity flow case on PyFR with ac-navier-stokes. It is an OpenFOAM tutorial case which simulates a cavity with three non-slip fixed walls and a moving walls moving at speed of 1m/s. In my test simulation, 1. Since it is a 2d flow, I applied one no-slp-wall with u = ... Author: Will Date: Tue, 14 Nov 2017 08:41:52 UTC Link: I am interested in trying out PyFR, but I am a little confused on how much PCI-E bandwidth is required. If I am going to run, say, 3 NVIDIA consumer-grade GPUs, will running only a PCI-E 2.0 x1 link between each GPU and the motherboard cause significant slowdown of simulation run-time? Thank you ... Author: Joel Date: Sun, 05 Nov 2017 10:02:30 UTC Link: Dear all, I am now testing the supersonic forward step test recently. I also find another guy once trying to do that case, while I follow the suggestions and tried to reproduce the results. I copied the .ini file from Jin Seok https://groups.google.com/d/msg/pyfrmailinglist/bwicPvZb1B8/Z07K4OCjC ... Author: SAM WANG Date: Fri, 03 Nov 2017 00:47:58 UTC Link: Dear all, I am now trying to convert an OpenFOAM case to Pyfr, but the conversion of some boundary conditions I am not quite sure. In my knowledge, for symmetry plane, the normal velocity is zero and the normal gradient of other variables are zero as well. For slip wall, normal velocity is ... Author: SAM WANG Date: Wed, 01 Nov 2017 22:59:46 UTC Link: Dear all, I just wonder why std time integrator cannot be implemented in ac-euler or ac-navier-stokes solvers. Is dual-time stepping compulsory for incompressible solvers? Additionally, does PyFR have any "do nothing" boundary conditions? Best regards, Will ... Author: Will Date: Mon, 30 Oct 2017 02:35:44 UTC Link: Dear all, I am wondering if Pyfr could solve 2D axisymmetric model? How does boundary condition be like? Thank you for your time. Cheers, Sam ... Author: SAM WANG Date: Thu, 26 Oct 2017 22:19:52 UTC Link: Dear all, I am new to PyFR. After I ran the example case-2D Euler vortex, the .vtu files were exported by 'pyfr export euler_vortex_2d.pyfrm euler_vortex_2d-100.0.pyfrs euler_vortex_2d-100.0.vtu -d 4'. I opened these .vtu files by Paraview 5.2.0, however, the streamline filter in Paraview is not ... Author: zvxnerig Date: Fri, 29 Sep 2017 12:56:14 UTC Link: Hi, I am getting an error for the mesh conversion of simple 3D model (sphere in the fluid domain) (root) tegner-login-1$ pyfr import -t gmsh sphere1.msh sphere.pyfrm Traceback (most recent call last): File "/cfs/klemming/nobackup/k/kriezh/ANACONDA_TEGNER/bin/pyfr", line 11, in ...

Author: Ezhilmathi Krishnasamy
Date: Sat, 09 Sep 2017 13:05:33 UTC
I am trying to import my mesh so I can PyFR however I am being met with the following error. christopher@dear5b-cuda:~/PDE_Sim\$ pyfr import pde_assem.msh pde_assem.pyfrm Traceback (most recent call last): File "/home/christopher/miniconda3/bin/pyfr", line 11, in load_entry_point('py ...

Author: Dallas Nelson
Date: Thu, 07 Sep 2017 19:48:50 UTC
*Hi all,I currently install Pyfr 1.7.0 on ubuntu 16.04. The graphic card is GTX 1080 (8G CUSTKIT). Following are the errors I get, it seems like there is a key error in "pyfr/util.py" and "nvcc fatal : Value 'sm_61' is not defined for option 'gpu-architecture' ".* *Thank you in advance if ...

Author: SAM WANG
Date: Wed, 30 Aug 2017 07:31:52 UTC
Hi, I would like a test a small test case with 3D model using PyFR. I am basically extending the cylinder model with 3D dimension. And also instead of the cylinder I have put the sphere. I have now with me .cgns tet mesh, but when I try to convert it, I am getting following error. (root) ...

Author: Ezhilmathi Krishnasamy
Date: Tue, 29 Aug 2017 12:27:32 UTC
Hi, Is there any way to convert all the files into once. For example, I have couette_flow_2d-000.pyfrs up to 050.pyfrs. There is a script to convert the files: pyfr export mesh.pyfrm solution.pyfrs solution.vtu I do not want to do one by one, I would like to do all in once. Best regards, ...

Author: Ezhilmathi Krishnasamy
Date: Tue, 29 Aug 2017 09:25:22 UTC
Hello, I'm looking to run a 3D simulation using PyFR and I'm having some trouble importing the mesh from Gmsh. I created the 3D mesh by extruding a 2D geometry that I have run successfully before. When importing the 3D mesh with PyFR I get the following error: ValueError: Unpaired faces in mesh ...

Author: Tom Goode
Date: Thu, 24 Aug 2017 16:10:56 UTC

## Latest Release

PyFR 1.7.0:

• Added multi-p convergence acceleration for dual time stepping.