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Intrepid2: Use LAPACK GELS instead in GESV for HDIV projection (issue #4738)

James Willenbring requested to merge mperego:develop into develop

Created by: mperego

Intrepid2: Use LAPACK GELS instead of GESV Solve a local system in the HDIV projection class in a least square sense because the system is ill-posed. This should close issue #4738 (closed)

@trilinos/intrepid2

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Motivation and Context

How Has This Been Tested?

Checklist

  • [ x ] My commit messages mention the appropriate GitHub issue numbers.
  • [ x ] My code follows the code style of the affected package(s).
  • My change requires a change to the documentation.
  • I have updated the documentation accordingly.
  • I have read the code contribution guidelines for this project.
  • I have added tests to cover my changes.
  • [ x ] All new and existing tests passed.
  • [ x ] No new compiler warnings were introduced.
  • These changes break backwards compatibility.

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