Hot to fix LAPACK/BLAS loading error?

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Augusto Martins
Augusto Martins on 19 Feb 2016
Edited: Yue Wei on 29 Mar 2022
We've recently updated the matlab in our lab's computers to the 2015a version. But now the following errors are happening whenever some basic functions are used:
BLAS loading error: mkl.dll:Could not find the specified module
and
LAPACK loading error: mkl.dll:Could not find the specified module
How can we fix this issue? Thanks.
  2 Comments
Rubén García García
Rubén García García on 12 Apr 2020
Tengo el mismo problema. Si encontraste la solución espero puedas compartirmela, te lo agradecería mucho ¡Saludos!
Augusto Martins
Augusto Martins on 13 Apr 2020
Hi Rúben, that has been a while but I still remember what I did. I had noticed that matlab 2015 we installed was really lacking this library. But I also had the 2013, which was working properly and had the mkl.dll. So I simply copied the dll in the 2015 lib folder and it worked. Hope it helps you!

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Answers (2)

Yue Wei
Yue Wei on 29 Mar 2022
Edited: Yue Wei on 29 Mar 2022
I also encountered the same problem, my solution is two:
1. First solution-Add two environment variables, the 1st variable's NAME is BLAS_VERSION and VALUE is mkl.dll, the 2nd variable NAME LAPACK_VERSION and VALUE is MKL.dll.
2. Second solution-Enter two lines of code in the MATLAB Command Window, the 1st: setenv('BLAS_VERSION', 'mkl.dll'), and the 2nd: setenv('LAPACK_VERSION', 'mkl.dll').
Then, In the MATLAB Command Window, you can test the code below:
1. version -blas;
2. version -lapack

Walter Roberson
Walter Roberson on 19 Feb 2016
I do not know why that has happened to you, but the following might help:

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