qiskit-aer/releasenotes/notes/0.14/compute-svd-with-lapack-3ee...

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---
features:
- |
Replace Qiskit SVD function with OpenBLAS/LAPACK SVD functions ``zgesvd``
and ``zgesdd``. By default ``zgesvd`` is used. Performance of ``zgesdd`` is better than
that of ``zgesvd`` on large matrices, whereas ``zgesvd`` performs better on small matrices.
User can use ``zgesdd`` function
setting the environment variable ``QISKIT_LAPACK_SVD=DC``.