<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Dear PETSc team:<div class=""><br class=""></div><div class="">On upgrading to version 3.8, we have discovered an inconsistency in the python configuration scripts for using Intel MKL for BLAS/LAPACK.</div><div class="">It seems that these options were changed between 3.7 and 3.8:</div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">Version 3.8:</div><div class=""><ul class="">
<li class="">--with-blaslapack-lib=libsunperf.a</li>
<li class="">--with-blas-lib=libblas.a --with-lapack-lib=liblapack.a</li>
<li class="">--with-blaslapack-dir=/soft/com/packages/intel/13/079/mkl</li></ul><div class=""><br class=""></div><div class="">Version 3.7:</div><div class=""><ul class="">
<li class="">--with-blas-lapack-lib=libsunperf.a</li>
<li class="">--with-blas-lib=libblas.a --with-lapack-lib=liblapack.a</li>
<li class="">--with-blas-lapack-dir=/soft/com/packages/intel/13/079/mkl</li>
</ul><div class=""><br class=""></div></div><div class="">So a hyphen was inserted with the lib and dir options.</div><div class=""><br class=""></div><div class="">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).</div><div class=""><br class=""></div><div class="">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:</div><div class=""><br class=""></div><div class=""><a href="https://software.intel.com/en-us/articles/enabling-intel-mkl-in-petsc-applications" class="">https://software.intel.com/en-us/articles/enabling-intel-mkl-in-petsc-applications</a></div><div class=""><br class=""></div><div class=""><a href="https://software.intel.com/en-us/articles/mkl-blas-lapack-with-petsc" class="">https://software.intel.com/en-us/articles/mkl-blas-lapack-with-petsc</a></div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">Thanks, Randy Mackie</div><div class=""><br class=""></div></div></body></html>