Simulink interface with OpenFAST crashes Matlab #605
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I just tried to generate S-function changing the parameter #define CHANNEL_LENGTH 20 in FAST_library.h file and I got the same problem. Here is my Matlab output: Configuration: Fault Count: 1 Abnormal termination Register State (captured): R8 = 00000000000dc430 R9 = 00007ffc4a14e930 RIP = 000000001055292a EFL = 00000206 CS = 0033 FS = 0053 GS = 002b Stack Trace (captured): This error was detected while a MEX-file was running. If the MEX-file Originally posted by @eletroinf in #548 (comment) |
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Due to the bug in the tagged OpenFAST 2.4.0 release, I would expect the S-Function built with it to run with the OpenFAST DLL built from OpenFAST 2.3.0, but not OpenFAST 2.4.0. I would also expect that when you changed the header file: that this S-Function will work with the DLL built from OpenFAST 2.4.0 (or the current dev branch) but not with the DLL from OpenFAST 2.3.0. Other combinations of the S-Function and DLL versions from 2.3.0 and 2.4.0 will result in Matlab crashing. Did you use the correct DLL after you changed the S-Function? |
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Thank you for the help I redid the entire compilation process and I build the S-function with #define CHANNEL_LENGTH 20 in FAST_Library.h file. I obtained the same result: The Matlab crashes and close when I try to run my simulation. I reviewed my files to make sure that I was using the correct ones. |
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I have model working perfectly well with the OpenFast V2.2.0 (through simulink). But I have recently compiled and generated s-function from V2.4.0. When I run my model with the latest, matlab crashes. By any chance, are there changes made to the input files (like Aerodyn etc) requiring more inputs compared to the v2.4.0? I mean can the input files created for V2.2.0 be directly used for V2.4.0 as well or do they need to be modified? Regards, |
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Dear @kumaraeedara, The input files must be changed between OpenFAST v2.2 and v2.4. The input file changes associated with each release of OpenFAST are documented here: https://openfast.readthedocs.io/en/master/source/user/api_change.html. Best regards, |
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Dear @jjonkman Thanks. I made the relevant changes as pointed in the document and able to run V2.4.0 without issues using .exe (that I obtained after compilation). Regards, |
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@kumaraeedara, If you incorporated the change from #550 before building the S-Function for v2.4.0, I wouldn't expect Matlab to crash. Is Matlab finding and using the correct version of the S-Function that you built? Do you have compatible S-Function |
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Dear @bjonkman I am using the V2.4.0 Latest release (zip file). Just changing the CHANNEL_LENGTH from 10 to 20 in FAST_Library.h file as suggested in #548 (comment) and recreating S-function did work for me. Thank you. Regards, |
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Only to give a final feedback. Thanks anyway. |
I am creating a new issue here because there are too many topics going on in issue #548:
From @eletroinf:
I Have the same problem with openFAST 2.4.0-master and dev.
Compilation with Visual studio and mex generated by C compiler installed by means of Matlab Add-on (Matlab 2018b).
The S-function generated using v 2.4.0 source files works fine with openFAST 2.3.0 that I also compiled with Visual Studio. So I think the problem is not with the S-function.
Neither my project nor the examples works - all them result in Matlab crash.
Originally posted by @eletroinf in #548 (comment)
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