Search found 23 matches

by alirezacivil
Sat May 27, 2017 5:53 pm
Forum: Parallel Processing
Topic: different numbers of cores affect the convergence
Replies: 1
Views: 4744

different numbers of cores affect the convergence

I am using OpenseesSP to push a huge 3D model to a certain point. When I change the number of cores or I run it in different computer, it affects the point which the model is diverging. I wanted to know what is happening and how I can improve the convergence? It should be noted that results are iden...
by alirezacivil
Thu Mar 09, 2017 3:40 pm
Forum: Parallel Processing
Topic: system Mumps in OpenSeesSP and push over
Replies: 7
Views: 9710

Re: system Mumps in OpenSeesSP and push over

Hi Frank, Thanks for your response. I used -ICNTL 90. I got this error: Work array too small; use -ICNTL14 option, the default is -ICNTL 20 make 20 larger. The memory you are talking about is RAM in computer? Should I enhance the RAM or I should use better CPU. My CPU has 8 cores and I am using 7 co...
by alirezacivil
Mon Mar 06, 2017 10:02 pm
Forum: OpenSees.exe Users
Topic: continuing a finished analysis
Replies: 3
Views: 3566

Re: continuing a finished analysis

Can you please explain how we can do it?
Thanks
by alirezacivil
Thu Mar 02, 2017 10:38 pm
Forum: OpenSees.exe Users
Topic: continuing a finished analysis
Replies: 3
Views: 3566

continuing a finished analysis

I was wondering is it possible to continue an analysis which is failed or finished?

For instance, If one pushes building to 1%, is it possible to push it further to 1.5% after the previous analysis is done and saved.

Or we should redo from zero?
by alirezacivil
Thu Mar 02, 2017 6:39 pm
Forum: Parallel Processing
Topic: system Mumps in OpenSeesSP and push over
Replies: 7
Views: 9710

Re: system Mumps in OpenSeesSP and push over

Thanks.
It is ok now.

Can you please explain the "system Mumps -ICNTL14 80"? what is 80 means? I did not find it in wiki.
by alirezacivil
Thu Mar 02, 2017 6:36 pm
Forum: Parallel Processing
Topic: limitation on the number of recorders
Replies: 6
Views: 9259

Re: limitation on the number of recorders

Hi, Thanks for your response. When I record the nodes in separate files ( each node in separate node command) opensees freezes. Without progressing in the analysis, it starts writing in the results folder and if I do not stop it, the volume of this folder can reach to 10 GB. But I found the solution...
by alirezacivil
Tue Feb 28, 2017 11:11 pm
Forum: Parallel Processing
Topic: limitation on the number of recorders
Replies: 6
Views: 9259

Re: limitation on the number of recorders

Hi, Thanks for your response. I am modelling a 12 storey building in 3D. The beam/column elements are elastic elements with concentrated hinges using zero length elements and shear walls are modelled using displacement beam column elements. I wanted to record each node rotations. When I use the reco...
by alirezacivil
Tue Feb 28, 2017 11:06 pm
Forum: Parallel Processing
Topic: system Mumps in OpenSeesSP and push over
Replies: 7
Views: 9710

Re: system Mumps in OpenSeesSP and push over

Hi Frank, Thanks for your response. First I perform gravity analysis with these scripts: constraints Penalty 1.e25 1.e25 numberer RCM; system Mumps; test NormDispIncr 1.0e-6 20; algorithm KrylovNewton ; integrator LoadControl 0.1; analysis Static; analyze 10; Then I carry out push over analysis with...
by alirezacivil
Tue Feb 28, 2017 1:41 am
Forum: Parallel Processing
Topic: system Mumps in OpenSeesSP and push over
Replies: 7
Views: 9710

system Mumps in OpenSeesSP and push over

I am doing gravity analysis and push over analysis in succession using OpenSeesSP.
When I use system Mumps in OpenSeesSP just for the gravity analysis it works. But it does not work for the push over analysis after performing gravity analysis.
What is the problem?
by alirezacivil
Tue Feb 28, 2017 1:36 am
Forum: Parallel Processing
Topic: limitation on the number of recorders
Replies: 6
Views: 9259

limitation on the number of recorders

Is there any limitation on the numbers of recorders using OpenSeesSP?
The recorders work individually but not together!
by alirezacivil
Wed Oct 12, 2016 4:11 pm
Forum: OpenSees.exe Users
Topic: SFI MVLEM in 3D
Replies: 3
Views: 4060

Re: SFI MVLEM in 3D

Dear fmk, Thanks for your response. Can you please explain it more? Because when I use nodes with 3 coordinates, I see this "MVLEM:: setDomain,.: 2 coords required at nodes, not enough provided for element" It seems that when I use nodes with 3 coordinates, it does not recognize. I was won...
by alirezacivil
Tue Oct 11, 2016 10:34 pm
Forum: OpenSees.exe Users
Topic: SFI MVLEM in 3D
Replies: 3
Views: 4060

SFI MVLEM in 3D

I was wondering to know that whether "SFI MVLEM - Cyclic Shear-Flexure Interaction Model for RC Walls " element is working in 3D environment or not.
by alirezacivil
Mon Jul 25, 2016 12:24 am
Forum: Useful Scripts.
Topic: LimitStateMaterial
Replies: 6
Views: 19075

Re: LimitStateMaterial

Hi Jayanthan,
I could not get rational results from this element. But about the definition of the inputs, you can look this manual:
http://opensees.berkeley.edu/wiki/image ... Manual.pdf
Kind Regards,
Alireza
by alirezacivil
Thu Jul 14, 2016 8:48 pm
Forum: Useful Scripts.
Topic: LimitStateMaterial
Replies: 6
Views: 19075

Re: LimitStateMaterial

I found the reason why the material was not running. It was because the optional part (<$ndI $ndJ $dof $perpDirn $delta>) in the command is not optional: limitCurve Shear $curveTag $eleTag $rho $fc $b $h $d $Fsw $Kdeg $Fres $defType $forType <$ndI $ndJ $dof $perpDirn $delta> It should be written, th...
by alirezacivil
Mon Feb 22, 2016 4:56 pm
Forum: OpenSees.exe Users
Topic: a multi-linear curve material
Replies: 3
Views: 3328

Re: a multi-linear curve material

Thanks for your response.

I wanted to use Hysteretic Material for this purpose but apparently this material is not working in this version of opensees.
Do you have other suggestions for the alternative material?
If not can you please introduce some references for coding a new material?

Thanks a lot.