Re: [deal.II] different results with different number of processors

2017-07-06 Thread Weixiong Zheng
No adaptivity. I suspect it would not be about the weak form directly. So, every time I give an set of initial cells, I need to make sure total initial cell number N_cell_tot % n_process == 0. If this condition is fulfilled, solution will always be correct. Say, I want to use 5 processors, then

Re: [deal.II] different results with different number of processors

2017-07-06 Thread Weixiong Zheng
I suspect it would not be about the weak form directly. So, every time I give an set initial cells, I need to make sure total initial cell number N_cell_tot % n_process == 0. If this condition is fulfilled, solution will always be correct. Say, I want to use 5 processors, then I have to give N_

[deal.II] Re: CMake extra libraries?

2017-07-06 Thread Bruno Turcksin
Victor, On Thursday, July 6, 2017 at 3:22:04 PM UTC-4, Victor Eijkhout wrote: > > add the flag that you need in SET(Trilinos_CXX_COMPILER_FLAGS) > > build@build-BLDCHROOT:12.10.1> find . -name \*.cmake -exec grep > COMPILER_FLAGS {} \; -print >

[deal.II] Re: CMake extra libraries?

2017-07-06 Thread Victor Eijkhout
Denis: I can not remove pytrilinos because I actually need it in trilinos. Bruno: > add the flag that you need in SET(Trilinos_CXX_COMPILER_FLAGS) build@build-BLDCHROOT:12.10.1> find . -name \*.cmake -exec grep COMPILER_FLAGS {} \; -print

Re: [deal.II] different results with different number of processors

2017-07-06 Thread Wolfgang Bangerth
On 07/06/2017 09:02 AM, Weixiong Zheng wrote: Both are generated with subdivided hyper rectangle with same reps and diagonals. And no adaptive refinement? In that case, the solution *should* be the same, assuming your linear solver tolerance is small enough. If it isn't, there is probably a b

Re: [deal.II] Re: Searching for libs in BLAS_LIBRARY_DIRS=''

2017-07-06 Thread Bruno Turcksin
Phil, the names for BLAS and LAPACK are changed here https://github.com/dealii/candi/blob/master/deal.II-toolchain/packages/trilinos.package#L76 Maybe you can add a cecho in the function to see if confopts is set correctly. Best, Bruno 2017-07-06 10:56 GMT-04:00 Phil H : > Hi Bruno, > > No, I c

Re: [deal.II] different results with different number of processors

2017-07-06 Thread Weixiong Zheng
Both are generated with subdivided hyper rectangle with same reps and diagonals. -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google

[deal.II] Re: Searching for libs in BLAS_LIBRARY_DIRS=''

2017-07-06 Thread Phil H
Hi Bruno, No, I changed the MKL to ON, which is why this is strange. Cheers, Phil On Thursday, July 6, 2017 at 10:14:53 AM UTC-4, Bruno Turcksin wrote: > > Phil, > > did you forget to change MKL=OFF to MKL=ON, in candi.cfg ( > https://github.com/dealii/candi/blob/master/candi.cfg#L68)? This

[deal.II] Re: Searching for libs in BLAS_LIBRARY_DIRS=''

2017-07-06 Thread Bruno Turcksin
Phil, did you forget to change MKL=OFF to MKL=ON, in candi.cfg (https://github.com/dealii/candi/blob/master/candi.cfg#L68)? This should change the name from blas to whatever is the name for mkl. Best, Bruno On Thursday, July 6, 2017 at 9:28:22 AM UTC-4, Phil H wrote: > > Hello I'm using candi

Re: [deal.II] different results with different number of processors

2017-07-06 Thread Wolfgang Bangerth
Weixiong, When solving my problem with PETScWrappers using MPI, I saw sth interesting. I ran my test problem on my Mac with 4 core 8 threads. When using under 4 process, that is "mpirun -np 4 xxx", results are always right. When trying 6 process, "mpirun -np 6 xxx", results are weird (right r

[deal.II] Searching for libs in BLAS_LIBRARY_DIRS=''

2017-07-06 Thread Phil H
Hello I'm using candi to install deal.ii on a brand new cluster. The new cluster is geared up to use intel, but I can try and use gcc. The modules I load to begin with are: 1) nixpkgs/.16.09 (H,*S*) 3) gcccore/.5.4.0 (H) 5) openmpi/2.1.1 ( *m*) 2) StdEnv/2016.4 (*S*) 4) gcc/5.4

[deal.II] transitioning from parallel::shared::Triangulation to parallel::distributed::Triangulation

2017-07-06 Thread Alberto Salvadori
Hi deal.ii community, I am bothering today about a code I have been writing in the shared triangulation framework and its transition to the parallel::distributed:: Triangulation framework. The shared version works just fine, and so does the parallel if run with 1 single process. I understand

Re: [deal.II] Re: hp HDG in deal.II

2017-07-06 Thread Jean-Paul Pelteret
Dear Simon, 1. Track deal.II's remote master branch git remote add dealii g...@github.com:dealii/dealii.git 2. Fetch the up-to-date master from the deal.II remote git fetch dealii 3. Merge or rebase as necessary: git merge dealii/master or git rebase master In all likelihood "rebasing" is the b

Re: [deal.II] Re: hp HDG in deal.II

2017-07-06 Thread sml . imfeld
Hello all Thanks a lot for your replies. I managed to submit a pull request (the video lecture was quite helpful). I hope I did it right, otherwise I'm happy for feedback. I will try to implement the error computation using Daniels suggestions. Now a follow-up question regarding development wi