fix the broken backward euler test;

relax the tolerance for the cuda rosenbrock integration test
NCAR · Sep 12, 2024 · f708ae5 · f708ae5
1 parent 17024a4
commit f708ae5
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Showing 2 changed files with 10 additions and 3 deletions.
diff --git a/include/micm/solver/backward_euler.inl b/include/micm/solver/backward_euler.inl
@@ -76,8 +76,15 @@ namespace micm
       bool converged = false;
       std::size_t iterations = 0;
 
-      Yn1 = Yn;
-
+      if (result.stats_.number_of_steps_ == 0)
+      {
+        Yn.Copy(Yn1);
+      }
+      else
+      {
+        Yn1.Copy(Yn);
+      }
+
       do
       {
         result.stats_.number_of_steps_++;

diff --git a/test/integration/cuda/test_cuda_analytical_rosenbrock.cpp b/test/integration/cuda/test_cuda_analytical_rosenbrock.cpp
@@ -252,7 +252,7 @@ TEST(AnalyticalExamplesCudaRosenbrock, HIRES)
   test_analytical_hires<builderType1Cell, stateType1Cell>(solver, 1e-3, copy_to_device, copy_to_host);
 
   solver = rosenbrock_solver(micm::RosenbrockSolverParameters::FourStageDifferentialAlgebraicRosenbrockParameters());
-  test_analytical_hires<builderType1Cell, stateType1Cell>(solver, 1e-3, copy_to_device, copy_to_host);
+  test_analytical_hires<builderType1Cell, stateType1Cell>(solver, 5e-3, copy_to_device, copy_to_host);
 
   solver = rosenbrock_solver(micm::RosenbrockSolverParameters::SixStageDifferentialAlgebraicRosenbrockParameters());
   test_analytical_hires<builderType1Cell, stateType1Cell>(solver, 1e-3, copy_to_device, copy_to_host);