i have the same problem with MR Damper model, they advise me to disable all zero crossings in Configuration Parameters, so try to do that ! for me it did not work but my be it will work for you

can you give me details of your laptop/pc ! note Matlab is usually slow in windows 8.

Do you use a Parallel Computing Toolbox?

Here you have some tips:

http://www.mathworks.com/parallel-computing/optimize-simulation-performance.html

http://www.mathworks.com/help/simulink/manual-performance-optimization.html

You can use also the Performance Advisor:

http://www.mathworks.com/help/simulink/slref/performanceadvisor.html

I am runing Windows 7 on my Laptop, and try to run my smulation on the university super computer same problem

I have 4 GO RAMMATLAB 2012

Windows 7

did you try disable all zero crossings in Configuration Parameters ?

yes, i have disabled zero crossing in configuration parameter,but  unfortunately does not work,

my system data, win 8, 64bit, 4G ram, Cori5. 

so we are in the same problem dear abdollah !

i think we can solve our model equations using m.file and Ode45 command, it is a little complex but does work well,

One can use matlab pool besides disabling debugging/animation, echo expressions, overflow detection in simulation target. use of scopes can be avoided. data can be stored in .mat files and plotted later.

Wherever possible, try to do mathematical modelling of the components. It will help you

First, try to use different solvers, both continuous and discrete, variable step and fixed step. Imprtant question is an aim of the simulation. If it`s electromechanical process but not electromagnetic - use "phasor" type of solving. Another good trick is using R-shunts added to generator`s terminals (like small load). Also, R-shunt in parallel with "fault" simulink block may increase simulation speed.

Run simulation in discrete mode,by default it is in continuous mode.

Hi

Have you made sure that you don't have any algebraic loop. (http://ww2.distek.com/casestudy/simulink-tip/)

If you have transmission lines, you can replace them by lines with a delay decoupling the system

If you are using SimPowerSystems, adding a large resistance in shunt with the machine would also help.

LA

Dear Sandeep, if fixed step size is chosen, is it essential that all the components should have a same sample time? I am asking this becoz I was trying to simulate my work in fixed mode but it gave lot of errors.

Hi,

Run your simulation using Euler solver method (ode1) and fixed-step.

Good luck.

you can use the Discrete mode for solving the problem..Also selecting the appropriate initial value for each block can be useful..

https://www.mathworks.com/matlabcentral/answers/94052-how-can-i-speed-up-simulation-of-my-simulink-model#answer_103403