Conflicts of blas/lapack setting when using openfast with simulink in Ubuntu18.04

[isablanca]

Dear all,

I have encountered some error when running openfast with simulink. My system os is Ubuntu18.04, matlab version is R2021b (It can't work in R2020b either). I have tried two ways to install the openfast.

Method1:

I follow the document, compile openfast use

cmake .. -DBLAS_LIBRARIES=/usr/lib/x86_64-linux-gnu/openblas/libblas.so -DLAPACK_LIBRARIES=/usr/lib/x86_64-linux-gnu/openblas/liblapack.so -DBUILD_SHARED_LIBS=ON -DBUILD_OPENFAST_SIMULINK_API=ON
make -j
make install

Then, create_FAST_SFunc.m runs successfully.

But, when I run Run_OpenLoop.m, the matlab crashed, with following message shown in the terminal

Intel MKL ERROR: Parameter 4 was incorrect on entry to DGETRF.

It looks like the problem mentioned in https://github.com/OpenFAST/openfast/issues/730#issuecomment-826921225,
but the solution didn't work for me as shown in the method 2.

Method 2

I try to use the method shown in the post shown in #730

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:<path to openfast/install/lib>
export BLAS_VERSION=libopenblas.so
export LAPACK_VERSION=liblapacke.so
matlab

The both two openfast examples can run without error, but the above modification make some builtin function provided by Matlab not working, like c2d command with out of memory error, looks like an error posted in https://se.mathworks.com/matlabcentral/answers/522196-matlab-lapack-blas-configuration.

I am not sure but for me it looks like when compile the openfast, I didn't give a correct setting about blas and lapack packages, but I don't know how to do.

[Seager1989]

You may refer to #556 for a possible solution?

[isablanca]

The script

export BLAS_VERSION=libopenblas.so 
export LAPACK_VERSION=libopenblas.so 
matlab

not working, though it can make the example model run without error, it also causes errors when matlab runs its builtin function. Thus, it is not a good solution when some builtin matlab functions are involved in the simulink model.

So do you have any suggestion that we can run the openfast simulink model while keeping the default blas/lapack setting of matlab so that the builtin function of matlab is not affected? @bjonkman @rafmudaf

[reos-rcrozier]

Our pull request #1010 would address your issue

[AaronTUB]

Dear all,

I'm experiencing the same problem as described above. For my case, the solution

export BLAS_VERSION=libopenblas.so 
export LAPACK_VERSION=libopenblas.so 
matlab

only works, if I call simple matlab functions that do not involve matlab's built-in BLAS/LAPACK. If I try to used functions like lqr I get an Out of memory Error.

Unfortunately @reos-rcrozier, the pull request does not fix the issue.

@isablanca could you find a solution for the problem?