Re: [deal.II] deal.ii does not support MacOSX10.13.sdk

2017-09-26 Thread Praveen C
On Wed, Sep 27, 2017 at 6:17 AM, zhen-lin Wang wrote: > Hi, > > I am using Mac OS just updated my Xcode as MacOSX10.13.sdk. Then I got a > error during compiling > No rule to make target `/Applications/Xcode.app/ > Contents/Developer/Platforms/MacOSX.platform/Developer/ > SDKs/MacOSX10.12.sdk/Sys

[deal.II] deal.ii does not support MacOSX10.13.sdk

2017-09-26 Thread zhen-lin Wang
Hi, I am using Mac OS just updated my Xcode as MacOSX10.13.sdk. Then I got a error during compiling No rule to make target `/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/System/Library/Frameworks/Accelerate.framework' Indeed there is only

Re: [deal.II] Re: Multiple Triangulations

2017-09-26 Thread Hamed Babaei
Dear Dr. Bangert, Since you have hanging nodes, do you apply hanging node constraints to > the displacement field you then put into MappingQEulerian? > It turns out that I have not applied hanging node constraints properly. I just did so and the problem was solved. Thank you very much for your

Re: [deal.II] Re: Multiple Triangulations

2017-09-26 Thread Wolfgang Bangerth
On 09/26/2017 03:19 PM, Hamed Babaei wrote: My Triangulation part is followed and the pictures of the initial and distorted mesh is attached. I appreciate it if you could guide me to the reason behind this problem. I don't think it's the generation of the mesh, but that it has to do with ei

[deal.II] Re: Block problem +MatrixFree

2017-09-26 Thread Daniel Arndt
Michael, Adding to Wolfgang's response: Am Dienstag, 26. September 2017 17:42:41 UTC+2 schrieb Michał Wichrowski: > > Dear all, > I'm dealing with Stokes problem that I want to solve using matrix-free > methods. In tests I've alredy found implementation of Stokes operator that > uses block vec

Re: [deal.II] Block problem +MatrixFree

2017-09-26 Thread Michał Wichrowski
W dniu wtorek, 26 września 2017 18:42:33 UTC+2 użytkownik Wolfgang Bangerth napisał: > > On 09/26/2017 09:42 AM, Michał Wichrowski wrote: > > > > 3) Is there a way to use multigrid on one block? For example I would > > like to compute approximation of A^-1 using multigrid. > > This might be

Re: [deal.II] Block problem +MatrixFree

2017-09-26 Thread Wolfgang Bangerth
On 09/26/2017 09:42 AM, Michał Wichrowski wrote: 3) Is there a way to use multigrid on one block? For example I would like to compute approximation of A^-1 using multigrid. This might be the way to go since applying multigrid on the whole saddle-point problem is difficult (but feasible). s

[deal.II] Block problem +MatrixFree

2017-09-26 Thread Michał Wichrowski
Dear all, I'm dealing with Stokes problem that I want to solve using matrix-free methods. In tests I've alredy found implementation of Stokes operator that uses block vectors. I'm goning to use multigrid method for saddle point problems similar to the one presented in: An efficient smoother for

Re: [deal.II] AztecOO::Iterate error code -3: loss of precision for offset values in step-15

2017-09-26 Thread Wolfgang Bangerth
On 09/26/2017 02:24 AM, 'Maxi Miller' via deal.II User Group wrote: I initialize my solution using the code shown above, but still the sharp drop remains. Why? I don't know. But at least now you know what is happening, and that gives you an angle to debugging the problem. Are you outputting

Re: [deal.II] AztecOO::Iterate error code -3: loss of precision for offset values in step-15

2017-09-26 Thread 'Maxi Miller' via deal.II User Group
Your assumption is correct, I checked the shape of the surface after initialization. It looks (for OFFSET=2 and refine_global(2)) like Setting the OFFSET-value

Re: [deal.II] AztecOO::Iterate error code -3: loss of precision for offset values in step-15

2017-09-26 Thread 'Maxi Miller' via deal.II User Group
My BoundaryValues-function looks like template class BoundaryValues : public Function { public: BoundaryValues () : Function() {} virtual double value (const Point &p, const unsigned int component = 0) const; };