Changed default embedded second-order MRI-GARK method to ARKODE_MRI_G…

…ARK_ERK22b (to match fixed-step default)
LLNL · Oct 4, 2024 · bb0dc39 · bb0dc39
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commit bb0dc39
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diff --git a/doc/arkode/guide/source/Usage/MRIStep/MRIStepCoupling.rst b/doc/arkode/guide/source/Usage/MRIStep/MRIStepCoupling.rst
@@ -413,8 +413,8 @@ with values specified for each method below (e.g., ``ARKODE_MIS_KW3``).
    Table name                              Method Order        Embedding Order  Slow RHS Calls  Reference
    ======================================  ==================  ===============  ==============  =====================
    :index:`ARKODE_MRI_GARK_FORWARD_EULER`  :math:`1^*`         --               1
-   :index:`ARKODE_MRI_GARK_ERK22a`         :math:`2^{\circ}`   1                2               :cite:p:`Sandu:19`
-   :index:`ARKODE_MRI_GARK_ERK22b`         :math:`2^*`         1                2               :cite:p:`Sandu:19`
+   :index:`ARKODE_MRI_GARK_ERK22a`         2                   1                2               :cite:p:`Sandu:19`
+   :index:`ARKODE_MRI_GARK_ERK22b`         :math:`2^{*\circ}`  1                2               :cite:p:`Sandu:19`
    :index:`ARKODE_MRI_GARK_RALSTON2`       2                   1                2               :cite:p:`Roberts:22`
    :index:`ARKODE_MERK21`                  2                   1                2               :cite:p:`Luan:20`
    :index:`ARKODE_MIS_KW3`                 :math:`3^*`         --               3               :cite:p:`Schlegel:09`

diff --git a/include/arkode/arkode_mristep.h b/include/arkode/arkode_mristep.h
@@ -80,7 +80,7 @@ static const int MRISTEP_DEFAULT_EXPL_2 = ARKODE_MRI_GARK_ERK22b;
 static const int MRISTEP_DEFAULT_EXPL_3 = ARKODE_MIS_KW3;
 static const int MRISTEP_DEFAULT_EXPL_4 = ARKODE_MRI_GARK_ERK45a;
 
-static const int MRISTEP_DEFAULT_EXPL_2_AD = ARKODE_MRI_GARK_ERK22a;
+static const int MRISTEP_DEFAULT_EXPL_2_AD = ARKODE_MRI_GARK_ERK22b;
 static const int MRISTEP_DEFAULT_EXPL_3_AD = ARKODE_MRI_GARK_ERK33a;
 static const int MRISTEP_DEFAULT_EXPL_4_AD = ARKODE_MRI_GARK_ERK45a;
 static const int MRISTEP_DEFAULT_EXPL_5_AD = ARKODE_MERK54;