[petsc-users] Intel MKL

[Satish Balay]

On Mon, 20 Nov 2017, Randall Mackie wrote:

> Dear PETSc team:
> 
> On upgrading to version 3.8, we have discovered an inconsistency in the python configuration scripts for using Intel MKL for BLAS/LAPACK.
> It seems that these options were changed between 3.7 and 3.8:
> 
> 
> Version 3.8:
> --with-blaslapack-lib=libsunperf.a
> --with-blas-lib=libblas.a --with-lapack-lib=liblapack.a
> --with-blaslapack-dir=/soft/com/packages/intel/13/079/mkl
> 
> Version 3.7:
> --with-blas-lapack-lib=libsunperf.a
> --with-blas-lib=libblas.a --with-lapack-lib=liblapack.a
> --with-blas-lapack-dir=/soft/com/packages/intel/13/079/mkl
> 
> So a hyphen was inserted with the lib and dir options.

Actually a hyphen was removed in 3.8

> 
> However, we found that at least in the mkl_pardiso.py script it still looks for a hyphen, but in other scripts we checked it doesn’t (although we did not do an exhaustive search).

Hm - 'blas-lapack' is listed in an error message. Pushed a fix to 'maint' now.

Satish

> 
> We know that you are not connected to Intel, but maybe someone from Intel reads these messages, as their web pages that explain how to install Petsc are wrong and conform to the pre-3.8 options:
> 
> https://software.intel.com/en-us/articles/enabling-intel-mkl-in-petsc-applications <https://software.intel.com/en-us/articles/enabling-intel-mkl-in-petsc-applications>
> 
> https://software.intel.com/en-us/articles/mkl-blas-lapack-with-petsc <https://software.intel.com/en-us/articles/mkl-blas-lapack-with-petsc>
> 
> 
> Thanks, Randy Mackie
> 
>