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IEAWindTask37 / IEA-15-240-RWT

15MW reference wind turbine repository developed in conjunction with IEA Wind
Apache License 2.0
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Request for 64 bit version of libdiscon.so OpenFAST v 3.1.0 UMaine VolturnUS-S Semisub #88

Closed andreowhite closed 2 years ago

andreowhite commented 2 years ago

Hi @gbarter I have started using OpenFAST v3.1.0 and I am getting an error when I try to run a simulation for the VolturnUS-S Semisub. The error is shown below: FAST_InitializeAll:SrvD_Init:BladedInterface_Init:The dynamic library .../IEA-15-240-RWT/ServoData/libdiscon.so could not be loaded. Check that the file exists in the specified location and that it is compiled for 64-bit applications.

 OpenFAST encountered an error during module initialization. Simulation error level: FATAL ERROR Aborting OpenFAST.

I believe that this error may be because I am using the 32 bit version of libdiscon.so. Can you please let me know where I can get the 64 version of libdiscon.so for OpenFAST v3.1.0. Otherwise if it is another error do you have a fix for it?

Thank you.

Regards, AOAW

ptrbortolotti commented 2 years ago

Hello AOAW, please go ahead and compile ROSCO (https://github.com/NREL/ROSCO) yourself on your machine(s) using the instructions available here https://rosco.readthedocs.io/en/latest/source/install.html Please let us know if this step isn't successful. Best regards, Pietro

gbarter commented 2 years ago

I would also suggest making sure you are current with the latest release (v1.1.2). The ROSCO team recently updated their files and there are 64-bit libraries for all platforms, and 32-bit for Windows.

andreowhite commented 2 years ago

Thanks @gbarter and @ptrbortolotti the crux of the problem was that I was using the .so file which is for Linux. I needed to have used the .dll file which is for Windows. I think when I had tried to run in OpenFAST vs2.5.0 - some time ago - I had the same issue. Lol totally forgot that initially. I eventually remembered and was able to retrace to how the controller was defined in the servodyn. Once I changed to .dll that solved it.

Thanks again.

Regards, AOAW