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Thyra: Fix #2061

James Willenbring requested to merge Fix-2061 into master

Created by: mhoemmen

@trilinos/thyra Fix the nonconst overload of Thyra::get_Epetra_MultiVector, so that it no longer hangs in debug mode, when some (but not all) MPI processes have zero rows. #1941 (closed) related to the const overload of Thyra::get_Epetra_MultiVector; #2061 (closed) relates to the nonconst overload. This commit fixes #2061 (closed). It also improves the #1941 (closed) unit test to exercise both overloads; the test passes.

@trilinos/thyra @micahahoward

Motivation and Context

Fixes #2061 (closed).

Related Issues

How Has This Been Tested?

Clang 3.9, debug build.

Checklist

  • My commit messages mention the appropriate GitHub issue numbers.
  • 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.
  • All new and existing tests passed.
  • No new compiler warnings were introduced.
  • These changes break backwards compatibility.

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