Re: [deal.II] order of dofs within a cell in a FESystem

2021-06-01 Thread Praveen C
Thanks David for the clarification. I am using nodal DG basis. I would like all components located at a support point to be consecutive in memory. I could achieve this by implementing a renumber_node_wise function. However, when I get local dofs on a cell

Re: [deal.II] Compiling deal.II with GCC version 9.3.0 results in missing C++11 features error

2021-06-01 Thread Wolfgang Bangerth
Alex, I have also tried cmake -DTRILINOS_DIR=/opt/ohpc/pub/libs/gnu9/openmpi4/trilinos/13.0.0  .. It is also unable to find the epetra header file. I can not tell why that would be so (but you should be able to find out by searching for the place in CMakeFiles/CMakeErrors.log where it

Re: [deal.II] initial velocity

2021-06-01 Thread Wells, David
Hi there, It looks like you have a simple copy-paste error: you define lambda2 but call lambda in line 1058. lambda2 is unused. Best, David From: dealii@googlegroups.com on behalf of Nikki Holtzer Sent: Monday, May 17, 2021 2:31 PM To: deal.II User Group

Re: [deal.II] Outputting DataOut Object into Personal Object Rather Than Outputing to File

2021-06-01 Thread Wells, David
Hi Chen, The internal data structures are designed so that we have a consistent intermediate representation that works for all supported output formats. It's generally not what you want to use since it works with the lowest common denominator (DG elements) representation of the solution. The

Re: [deal.II] order of dofs within a cell in a FESystem

2021-06-01 Thread Wells, David
Hi Praveen, I don't think its possible to change the internal numbering used by FESystem itself since it must support the case where not all finite elements have the same number of degrees of freedom. If you really need to accomplish this you will have to write a new finite element class.

Re: [deal.II] Compiling deal.II with GCC version 9.3.0 results in missing C++11 features error

2021-06-01 Thread Alex Cumberworth
Hello, I have been working with the cluster system administrators, but we are still having trouble with Trilinos. Trilinos is a package in the repository of the distribution, and we have installed it and loaded the module. The version is 13.0.0. It does seem to find trilinos, but for whatever

[deal.II] order of dofs within a cell in a FESystem

2021-06-01 Thread Praveen C
Is it possible to change the order of dofs within a cell in a FESystem ? I have situation like this: FESystem fe; degree = 1 nvar = 4 // number of unknowns at each support point fe(FE_DGQArbitrarynodes(QGauss<1>(degree+1), nvar) I print for i = 0; ihttp://www.dealii.org/ For mailing

Re: [deal.II] Re-using outputdata from a previous analysis into a new one

2021-06-01 Thread SAR
Sir, thank you for your reply, In my problem, I use a nucleation algorithm to place hydrides into the domain (using the Allen-Cahn equation). Since this function is of random nature, the exact structure will never not be reproduced in an another analysis. I want to generate a particular