# The problem of compiling Optimized mode on supercomputers **URL:** \ **Category:** ASPECT\ **Created:** [December 5, 2024, 7:11am UTC](https://community.geodynamics.org/t/the-problem-of-compiling-optimized-mode-on-supercomputers/3779 "2024-12-05T07:11:53Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![ddarkerlu](https://yyz2.discourse-cdn.com/flex036/user_avatar/community.geodynamics.org/ddarkerlu/32/1866_2.png) [@ddarkerlu](https://community.geodynamics.org/u/ddarkerlu)\ **Post date:** [December 5, 2024, 7:11am UTC](https://community.geodynamics.org/t/the-problem-of-compiling-optimized-mode-on-supercomputers/3779/1 "2024-12-05T07:11:53Z")
Dear all, I recently tried to install Optimized mode for ASPECT on a supercomputer, but encountered some difficulty. I can’t find a place to set the path to lapack, this file seems to be in openblas. Below is a screenshot of the error. Sincerely, Lu ![bfdd17a5d8f007726ed756b65e35c1c](https://canada1.discourse-cdn.com/flex036/uploads/geodynamics/original/2X/b/b3067c33151a68e9206e592c6486dc6858693a9a.png) ---
**Author:** ![jbnaliboff](https://avatars.discourse-cdn.com/v4/letter/j/58956e/32.png) [@jbnaliboff](https://community.geodynamics.org/u/jbnaliboff)\ **Post date:** [December 5, 2024, 6:19pm UTC](https://community.geodynamics.org/t/the-problem-of-compiling-optimized-mode-on-supercomputers/3779/2 "2024-12-05T18:19:40Z")
@ddarkerlu > I recently tried to install Optimized mode for ASPECT on a supercomputer, but encountered some difficulty. Do you see the same issue when compiling only in debug mode? I think this issue is independent of what mode ASPECT compiled in. ` I can’t find a place to set the path to lapack, this file seems to be in openblas.` Did you install openblas during the deal.II installation or are you using the version provided by the system? If you are using candi to install deal.II, note that [openblas is one of the available packages](https://github.com/dealii/candi/blob/master/candi.cfg#L66). Cheers, John