Re: [deal.II] Using DataOut with MappingCollection

2017-11-27 Thread Wolfgang Bangerth
On 11/27/2017 08:13 PM, Juan Carlos Araujo Cabarcas wrote: /home/ju4nk4/Soft/dealii/include/deal.II/numerics/data_out.h:285:16: note: void dealii::DataOut::build_patches(const dealii::Mappingspace_dimension>&, unsigned int, dealii::DataOutDoFHandlerType>::CurvedCellRegion) [with int dim = 2; D

Re: [deal.II] Re: Error during p4est installation

2017-11-27 Thread Wolfgang Bangerth
On 11/27/2017 08:51 PM, feap...@gmail.com wrote: I also get a bug when I install p4est *Error: Main header file missing * How can I solve this bugs in the installation of p4est? That is not enough information for us to tell you what the problem may be. Can you elaborate? Best W. -- -

[deal.II] Re: Error during p4est installation

2017-11-27 Thread feapman
Dear all, I also get a bug when I install p4est *Error: Main header file missing* How can I solve this bugs in the installation of p4est? Warm regards, Yaakov On Tuesday, December 9, 2014 at 9:51:34 AM UTC+1, Lev Karatun wrote: > > Hello! > > I'm trying to install p4est on a Linux cluster as

Re: [deal.II] Using DataOut with MappingCollection

2017-11-27 Thread Juan Carlos Araujo Cabarcas
Thanks for your reply. I did not know I could just pass the higher order mapping. If I omit DataOut::curved_inner_cells, then it works. However, I pursue domains with curved inner cells. Following your suggestion, I do: data_out.build_patches (MappingQGeneric(max_degree), 8, DataOut:: curved_in

Re: [deal.II] Re: Conjugate Gradient for Schur complement, serial vs parallel discrepancy in solution and effect of tolerance.

2017-11-27 Thread Bruno Turcksin
Dimitris, 2017-11-27 17:10 GMT-05:00 Dimitris Ntogkas : > Thanks for your quick response! You are right about the l2 vs max norm. > However, the error is 1e-4 in the l2 norm too. Just a clarification to make > sure I understand your response. I was indeed thinking of the condition > number, that'

[deal.II] Re: Relation between Solution Error Behavior and Polynomial Approximation Degree

2017-11-27 Thread Jaekwang Kim
No, I typically, calculate values itself and use MATLAB to draw plots. Thanks, Jaekwang On Monday, November 27, 2017 at 3:24:46 PM UTC-6, seven wrote: > > Hello Jaekwang, > > I am trying to generate some log-log plots, and wondering if you used the > functions in deal.ii to generate the figur

Re: [deal.II] step-22 partial boundary conditions

2017-11-27 Thread Wolfgang Bangerth
On 11/27/2017 01:16 PM, Jane Lee wrote: I'm trying to apply some partial boundary conditions to the step-22 stokes problem. I can't seem to find much further help on this and when I try and implement it, it solves but solution is clearly unstable/blows up. I am trying the basics before i impo

[deal.II] Re: Conjugate Gradient for Schur complement, serial vs parallel discrepancy in solution and effect of tolerance.

2017-11-27 Thread Dimitris Ntogkas
Hi Bruno, Thanks for your quick response! You are right about the l2 vs max norm. However, the error is 1e-4 in the l2 norm too. Just a clarification to make sure I understand your response. I was indeed thinking of the condition number, that's why I checked it, but in my case the 1e-11 should

[deal.II] Re: Relation between Solution Error Behavior and Polynomial Approximation Degree

2017-11-27 Thread seven
Hello Jaekwang, I am trying to generate some log-log plots, and wondering if you used the functions in deal.ii to generate the figure. If not, what did you use? Thanks, Jiaqi 在 2016年9月29日星期四 UTC-4上午11:41:48,Jaekwang Kim写道: > > >

[deal.II] Re: Conjugate Gradient for Schur complement, serial vs parallel discrepancy in solution and effect of tolerance.

2017-11-27 Thread Bruno Turcksin
Dimitris, The same implementation of CG will give you (slightly) different results in serial an parallel because the round-off errors will be different. This round-off errors will be amplified if you have a large condition number (see https://en.wikipedia.org/wiki/Condition_number). So if you

[deal.II] Conjugate Gradient for Schur complement, serial vs parallel discrepancy in solution and effect of tolerance.

2017-11-27 Thread Dimitris Ntogkas
Dear all, I have a question with regards to the behavior of the Conjugate Gradient method in serial and parallel. I am using version 8.5 of dealii and I have a parallel implementation based on Trilinos. The system matrix is in a block format and sparse, with blocks A, B, B^T and 0. The right h

[deal.II] step-22 partial boundary conditions

2017-11-27 Thread Jane Lee
I'm trying to apply some partial boundary conditions to the step-22 stokes problem. I can't seem to find much further help on this and when I try and implement it, it solves but solution is clearly unstable/blows up. I am trying the basics before i impose inhomogeneous quantities, and using no

Re: [deal.II] Using DataOut with MappingCollection

2017-11-27 Thread Wolfgang Bangerth
On 11/17/2017 12:37 PM, Juan Carlos Araujo Cabarcas wrote: I would like to reproduce step-27 but with curved boundaries with the use of MappingCollection. Everything seems to work fine, but I noticed that data_out does not seem to be implemented for passing a MappingCollection. Yes, that see

Re: [deal.II] Problem while installing deal.II (version 8.0) on a cluster running CentOS 6.7.

2017-11-27 Thread Wolfgang Bangerth
On 11/27/2017 10:03 AM, Sunder Dasika wrote:   file cannot create directory: /usr/local/common/scripts.  Maybe need   administrative privileges. Call Stack (most recent call first):   cmake_install.cmake:37 (INCLUDE) Most probably I need administrative privileges which I don't have currentl

Re: [deal.II] Problem while installing deal.II (version 8.0) on a cluster running CentOS 6.7.

2017-11-27 Thread Sunder Dasika
Thanks a lot for the help. 'cmake -D DEAL_II_WITH_NETCDF=OFF' workded. The error was successfully eliminated. At the end of 'make' I got the following message: Scanning dependencies of target deal_II [100%] Building CXX object source/CMakeFiles/deal_II.dir/base/dummy.cc.o Linking CXX shared librar

Re: [deal.II] error in SolverFGMRES related destructor

2017-11-27 Thread Wolfgang Bangerth
Seb, of course I am willing to share my code. You can find it in the file attached. The parameter file is configured such that the GrowingVectorMemory error occurs. Thanks. I've tried this with the current development version of deal.II and the error disappears. I'm pretty sure I know why t

Re: [deal.II] Problem while installing deal.II (version 8.0) on a cluster running CentOS 6.7.

2017-11-27 Thread Timo Heister
> Do you know how this version of NetCDF was installed? Do you need it? If > not, can you uninstall it? or do cmake -D DEAL_II_WITH_NETCDF=OFF -- Timo Heister http://www.math.clemson.edu/~heister/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see

Re: [deal.II] computation of residual for step-40 like programs

2017-11-27 Thread Timo Heister
> I checked the assembly and solve of system and > assembly of residual several times, but my residual > remains constant after few iterations. You can generate graphical output of your residual vector and check where the residual is large. This will tell you if it is the boundary, hanging nodes,

Re: [deal.II] Problem while installing deal.II (version 8.0) on a cluster running CentOS 6.7.

2017-11-27 Thread Guido Kanschat
- > On 27. Nov 2017, at 10:35, Sunder Dasika wrote: > > Thank you for the response. I will contact our system administrator and reply > as soon as possible. While doing so: your gcc is more than six years old. Maybe you can convince your administrators to update the system to something mo

Re: [deal.II] Problem while installing deal.II (version 8.0) on a cluster running CentOS 6.7.

2017-11-27 Thread Sunder Dasika
Thank you for the response. I will contact our system administrator and reply as soon as possible. On Monday, 27 November 2017 05:00:57 UTC+5:30, Wolfgang Bangerth wrote: > > On 11/26/2017 12:35 PM, Sunder Dasika wrote: > > I am trying to install deal.II on a cluster running CentOS 6.7. I have