Switch default of vectorization_jacobians

This will leave the coverage of the testing suite untouched!

applications/poisson_dg_tensor/verify.mini

@@ -15,7 +15,8 @@ compare_l2errorsquared = 1e-6
 fastdg = 1
 sumfact = 1
 vectorization_quadloop = 1
-vectorization_strategy = explicit
+vectorization_strategy = model
+vectorization_jacobians = 0
 
 [formcompiler.ufl_variants]
 cell = hexahedron

python/dune/perftool/options.py

@@ -85,7 +85,7 @@ class PerftoolFormOptionsArray(ImmutableRecord):
     vectorization_padding = PerftoolOption(default=None, helpstr="an explicit value for the allowed padding in vectorization")
     vectorization_allow_quadrature_changes = PerftoolOption(default=False, helpstr="whether the vectorization strategy is allowed to alter quadrature point numbers")
     vectorization_list_index = PerftoolOption(default=None, helpstr="Which vectorization to pick from a list (only valid with vectorization_strategy=fromlist).")
-    vectorization_jacobians = PerftoolOption(default=False, helpstr="Whether to attempt to vectorize jacobians (takes time, often not needed)")
+    vectorization_jacobians = PerftoolOption(default=True, helpstr="Whether to attempt to vectorize jacobians (takes time, often not needed)")
     simplify = PerftoolOption(default=False, helpstr="Whether to simplify expressions using sympy")
     generate_jacobians = PerftoolOption(default=True, helpstr="Whether jacobian_* methods should be generated. This is set to false automatically, when numerical_jacobian is set to true.")
     generate_residuals = PerftoolOption(default=True, helpstr="Whether alpha_* methods should be generated.")