How can I speed up simulation of my Simulink model?

Hello sir, I have made a model in simulink and it is running from 2 days and now it reaches to 2 Percent only. So please help me in this regard.

[Alok Jain]

I am using Solver Ode15s as other solver giving some error. I also used Accelerator mode but it doesnt increase the speed

Answer 1

[Yair Altman]

Try the list of suggestions here:

1. https://www.mathworks.com/company/newsletters/articles/improving-simulation-performance-in-simulink.html
2. https://www.mathworks.com/help/simulink/ug/consult-the-performance-advisor.html
3. http://undocumentedmatlab.com/blog/improving-simulink-performance

[Alok Jain]

showing this after using Accelerator mode

### Building the Accelerator target for model: alok ### Generating code into build folder: C:\Users\ALOK\Desktop\51_houses\slprj\accel\alok N_PWORKS = 17 numParams = 10 nStates = 62 nInputs = 390 nOutputs = 501 nSwitch = 285 NPARAMS_TOTAL = 10 ### Invoking Target Language Compiler on alok.rtw ### Using System Target File: C:\Program Files\MATLAB\R2013b\rtw\c\accel\accel.tlc ### Loading TLC function libraries ..... ### Initial pass through model to cache user defined code ............................................................................... ............................................................................... ............................................................................... ............................................................................... ........................................................... ### Caching model source code ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................................................... ............................................. ### Writing header file alok_acc.h ### Writing header file alok_acc_types.h . ### Writing header file rtwtypes.h ### Writing header file multiword_types.h ### Writing header file rt_look1d.h . ### Writing source file rt_look1d.c ### Writing header file rt_look.h ### Writing source file rt_look.c . ### Writing source file alok_acc.c ### Writing header file alok_acc_private.h . ### Writing source file alok_acc_data.c ### Writing header file rt_nonfinite.h ### Writing source file rt_nonfinite.c . ### Writing header file rt_defines.h ### Writing header file rtGetInf.h . ### Writing source file rtGetInf.c ### Writing header file rtGetNaN.h ### Writing source file rtGetNaN.c . ### TLC code generation complete. . ### Processing Template Makefile: C:\Program Files\MATLAB\R2013b\rtw\c\accel\accel_lcc64.tmf ### Creating alok.mk from C:\Program Files\MATLAB\R2013b\rtw\c\accel\accel_lcc64.tmf ### Building alok: .\alok.bat

C:\Users\ALOK\Desktop\51_houses\slprj\accel\alok>set MATLAB=C:\Program Files\MATLAB\R2013b

C:\Users\ALOK\Desktop\51_houses\slprj\accel\alok>"C:\Program Files\MATLAB\R2013b\bin\win64\gmake" -f alok.mk C:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\bin\lcc64 -dll -noregistrylookup -c -Zp8 -DLCC_WIN64 -DMATLAB_MEX_FILE -DMX_COMPAT_32 -nodeclspec OPTIMFLAGS="-DNDEBUG" -I. -I../../.. -IC:/PROGRA~1/MATLAB/R2013b\simulink\include -IC:/PROGRA~1/MATLAB/R2013b\extern\include -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\libsrc -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\common -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\tcpip -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\serial -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\custom -IC:/Users/ALOK/Desktop/51_houses/slprj/accel/alok -IC:/Users/ALOK/Desktop/51_houses -IC:/PROGRA~1/MATLAB/R2013b/toolbox/physmod/powersys/facts/facts -IC:/PROGRA~1/MATLAB/R2013b/toolbox/physmod/powersys/DR/DR -IC:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\include64 C:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64/mex/lccstub.c -o ./lccstub.obj C:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\bin\lcc64 -dll -noregistrylookup -c -Zp8 -DLCC_WIN64 -DMATLAB_MEX_FILE -DMX_COMPAT_32 -nodeclspec OPTIMFLAGS="-DNDEBUG" -I. -I../../.. -IC:/PROGRA~1/MATLAB/R2013b\simulink\include -IC:/PROGRA~1/MATLAB/R2013b\extern\include -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\libsrc -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\common -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\tcpip -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\serial -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\custom -IC:/Users/ALOK/Desktop/51_houses/slprj/accel/alok -IC:/Users/ALOK/Desktop/51_houses -IC:/PROGRA~1/MATLAB/R2013b/toolbox/physmod/powersys/facts/facts -IC:/PROGRA~1/MATLAB/R2013b/toolbox/physmod/powersys/DR/DR -IC:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\include64 -Foalok_acc.obj alok_acc.c C:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\bin\lcc64 -dll -noregistrylookup -c -Zp8 -DLCC_WIN64 -DMATLAB_MEX_FILE -DMX_COMPAT_32 -nodeclspec OPTIMFLAGS="-DNDEBUG" -I. -I../../.. -IC:/PROGRA~1/MATLAB/R2013b\simulink\include -IC:/PROGRA~1/MATLAB/R2013b\extern\include -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\libsrc -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\common -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\tcpip -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\serial -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\custom -IC:/Users/ALOK/Desktop/51_houses/slprj/accel/alok -IC:/Users/ALOK/Desktop/51_houses -IC:/PROGRA~1/MATLAB/R2013b/toolbox/physmod/powersys/facts/facts -IC:/PROGRA~1/MATLAB/R2013b/toolbox/physmod/powersys/DR/DR -IC:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\include64 -Foalok_acc_data.obj alok_acc_data.c C:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\bin\lcc64 -dll -noregistrylookup -c -Zp8 -DLCC_WIN64 -DMATLAB_MEX_FILE -DMX_COMPAT_32 -nodeclspec OPTIMFLAGS="-DNDEBUG" -I. -I../../.. -IC:/PROGRA~1/MATLAB/R2013b\simulink\include -IC:/PROGRA~1/MATLAB/R2013b\extern\include -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\libsrc -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\common -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\tcpip -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\serial -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\custom -IC:/Users/ALOK/Desktop/51_houses/slprj/accel/alok -IC:/Users/ALOK/Desktop/51_houses -IC:/PROGRA~1/MATLAB/R2013b/toolbox/physmod/powersys/facts/facts -IC:/PROGRA~1/MATLAB/R2013b/toolbox/physmod/powersys/DR/DR -IC:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\include64 -FortGetInf.obj rtGetInf.c C:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\bin\lcc64 -dll -noregistrylookup -c -Zp8 -DLCC_WIN64 -DMATLAB_MEX_FILE -DMX_COMPAT_32 -nodeclspec OPTIMFLAGS="-DNDEBUG" -I. -I../../.. -IC:/PROGRA~1/MATLAB/R2013b\simulink\include -IC:/PROGRA~1/MATLAB/R2013b\extern\include -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\libsrc -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\common -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\tcpip -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\serial -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\custom -IC:/Users/ALOK/Desktop/51_houses/slprj/accel/alok -IC:/Users/ALOK/Desktop/51_houses -IC:/PROGRA~1/MATLAB/R2013b/toolbox/physmod/powersys/facts/facts -IC:/PROGRA~1/MATLAB/R2013b/toolbox/physmod/powersys/DR/DR -IC:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\include64 -FortGetNaN.obj rtGetNaN.c C:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\bin\lcc64 -dll -noregistrylookup -c -Zp8 -DLCC_WIN64 -DMATLAB_MEX_FILE -DMX_COMPAT_32 -nodeclspec OPTIMFLAGS="-DNDEBUG" -I. -I../../.. -IC:/PROGRA~1/MATLAB/R2013b\simulink\include -IC:/PROGRA~1/MATLAB/R2013b\extern\include -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\libsrc -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\common -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\tcpip -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\serial -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\custom -IC:/Users/ALOK/Desktop/51_houses/slprj/accel/alok -IC:/Users/ALOK/Desktop/51_houses -IC:/PROGRA~1/MATLAB/R2013b/toolbox/physmod/powersys/facts/facts -IC:/PROGRA~1/MATLAB/R2013b/toolbox/physmod/powersys/DR/DR -IC:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\include64 -Fort_look.obj rt_look.c C:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\bin\lcc64 -dll -noregistrylookup -c -Zp8 -DLCC_WIN64 -DMATLAB_MEX_FILE -DMX_COMPAT_32 -nodeclspec OPTIMFLAGS="-DNDEBUG" -I. -I../../.. -IC:/PROGRA~1/MATLAB/R2013b\simulink\include -IC:/PROGRA~1/MATLAB/R2013b\extern\include -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\libsrc -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\common -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\tcpip -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\serial -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\custom -IC:/Users/ALOK/Desktop/51_houses/slprj/accel/alok -IC:/Users/ALOK/Desktop/51_houses -IC:/PROGRA~1/MATLAB/R2013b/toolbox/physmod/powersys/facts/facts -IC:/PROGRA~1/MATLAB/R2013b/toolbox/physmod/powersys/DR/DR -IC:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\include64 -Fort_look1d.obj rt_look1d.c C:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\bin\lcc64 -dll -noregistrylookup -c -Zp8 -DLCC_WIN64 -DMATLAB_MEX_FILE -DMX_COMPAT_32 -nodeclspec OPTIMFLAGS="-DNDEBUG" -I. -I../../.. -IC:/PROGRA~1/MATLAB/R2013b\simulink\include -IC:/PROGRA~1/MATLAB/R2013b\extern\include -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\libsrc -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\common -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\tcpip -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\serial -IC:/PROGRA~1/MATLAB/R2013b\rtw\c\src\ext_mode\custom -IC:/Users/ALOK/Desktop/51_houses/slprj/accel/alok -IC:/Users/ALOK/Desktop/51_houses -IC:/PROGRA~1/MATLAB/R2013b/toolbox/physmod/powersys/facts/facts -IC:/PROGRA~1/MATLAB/R2013b/toolbox/physmod/powersys/DR/DR -IC:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\include64 -Fort_nonfinite.obj rt_nonfinite.c ### Linking ... C:/PROGRA~1/MATLAB/R2013b\sys\lcc64\lcc64\bin\lcclnk64 -s -dll -o ../../../alok_acc.mexw64 -L"C:\Program Files\MATLAB\R2013b/sys/lcc64/lcc64/lib64" -entry LibMain alok_acc.def lccstub.obj alok_acc.obj alok_acc_data.obj rtGetInf.obj rtGetNaN.obj rt_look.obj rt_look1d.obj rt_nonfinite.obj C:/PROGRA~1/MATLAB/R2013b\extern\lib\win64\microsoft\libut.lib C:/PROGRA~1/MATLAB/R2013b\extern\lib\win64\microsoft\libmwmathutil.lib C:/PROGRA~1/MATLAB/R2013b\extern\lib\win64\microsoft\libmwsl_fileio.lib C:/PROGRA~1/MATLAB/R2013b\extern\lib\win64\microsoft\libmx.lib C:/PROGRA~1/MATLAB/R2013b\extern\lib\win64\microsoft\libmex.lib -map sfun.map ### Created mex file: alok_acc.mexw64 ### Successfully built the Accelerator target for model: alok >>

[Kh zaa]

I modeled a large power system in simulink (phasor mode) but it very slow. i am wondering if matlab can handle such of these system and if i can speed up my simulink simulation