From: Timo Heister Date: Thu, 7 Dec 2023 14:29:43 +0000 (-0500) Subject: make test more robust X-Git-Tag: relicensing~157^2 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a9d893d2afa86b067cd503ff61d8a6290db65dea;p=dealii.git make test more robust By avoiding a floating point equality comparison. This test fails for me in release mode with march=native with a residual of 1e-14. --- diff --git a/tests/mpi/affine_constraints_get_view_01.cc b/tests/mpi/affine_constraints_get_view_01.cc index def3035761..763a8718f4 100644 --- a/tests/mpi/affine_constraints_get_view_01.cc +++ b/tests/mpi/affine_constraints_get_view_01.cc @@ -192,8 +192,15 @@ test() pressure_constraints.distribute(check_vector_2.block(1)); } - // Now the assertion part: These vectors are the same: - Assert(check_vector_1 == check_vector_2, ExcInternalError()); + // Finally check that these two vectors are the same. Note that + // when we compile with native optimizations we might have a slight + // difference in results: + { + TrilinosWrappers::MPI::BlockVector result = check_vector_1; + result -= check_vector_2; + Assert(result.l2_norm() / check_vector_1.l2_norm() < 1e-8, + ExcInternalError()); + } deallog << "OK" << std::endl; }