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@Steven-Roberts
Steven-Roberts committed Sep 8, 2024
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19 changes: 19 additions & 0 deletions CHANGELOG.md
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### New Features and Enhancements

Added the `ARKODE_RALSTON_3_1_2` and `ARKODE_TSITOURAS_7_4_5` explicit
Runge-Kutta Butcher tables.

Improved the efficiency of default ARKODE methods with the following changes:

| Type | Old Default | New Default |
| ------------------ | ---------------------------------------------------------------- | ------------------------------------------------------------------ |
| 2nd Order Explicit | `ARKODE_HEUN_EULER_2_1_2` | `ARKODE_RALSTON_3_1_2` |
| 4th Order Explicit | `ARKODE_ZONNEVELD_5_3_4` | `ARKODE_SOFRONIOU_SPALETTA_5_3_4` |
| 5th Order Explicit | `ARKODE_CASH_KARP_6_4_5` | `ARKODE_TSITOURAS_7_4_5` |
| 6th Order Explicit | `ARKODE_VERNER_8_5_6` | `ARKODE_VERNER_9_5_6` |
| 8th Order Explicit | `ARKODE_FEHLBERG_13_7_8` | `ARKODE_VERNER_13_7_8` |
| 2nd Order Implicit | `ARKODE_SDIRK_2_1_2` | `ARKODE_ARK2_DIRK_3_1_2` |
| 3rd Order Implicit | `ARKODE_ARK324L2SA_DIRK_4_2_3` | `ARKODE_ESDIRK325L2SA_5_2_3` |
| 4th Order Implicit | `ARKODE_SDIRK_5_3_4` | `ARKODE_ESDIRK436L2SA_6_3_4` |
| 5th Order Implicit | `ARKODE_ARK548L2SA_DIRK_8_4_5` | `ARKODE_ESDIRK547L2SA2_7_4_5` |
| 4th Order ARK | `ARKODE_ARK436L2SA_ERK_6_3_4` and `ARKODE_ARK436L2SA_DIRK_6_3_4` | `ARKODE_ARK437L2SA_ERK_7_3_4` and `ARKODE_ARK437L2SA_DIRK_7_3_4` |
| 5th Order ARK | `ARKODE_ARK548L2SA_ERK_8_4_5` and `ARKODE_ARK548L2SA_DIRK_8_4_5` | `ARKODE_ARK548L2SAb_ERK_8_4_5` and `ARKODE_ARK548L2SAb_DIRK_8_4_5` |

The default value of `CMAKE_CUDA_ARCHITECTURES` is no longer set to `70` and is
now determined automatically by CMake. The previous default was only valid for
Volta GPUs while the automatically selected value will vary across compilers and
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34 changes: 34 additions & 0 deletions doc/shared/RecentChanges.rst
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**New Features and Enhancements**

Added the ``ARKODE_RALSTON_3_1_2`` and ``ARKODE_TSITOURAS_7_4_5`` explicit
Runge-Kutta Butcher tables.

Improved the efficiency of default ARKODE methods with the following changes:

+--------------------+-------------------------------------+--------------------------------------+
| Type | Old Default | New Default |
+====================+=====================================+======================================+
| 2nd Order Explicit | ``ARKODE_HEUN_EULER_2_1_2`` | ``ARKODE_RALSTON_3_1_2`` |
+--------------------+-------------------------------------+--------------------------------------+
| 4th Order Explicit | ``ARKODE_ZONNEVELD_5_3_4`` | ``ARKODE_SOFRONIOU_SPALETTA_5_3_4`` |
+--------------------+-------------------------------------+--------------------------------------+
| 5th Order Explicit | ``ARKODE_CASH_KARP_6_4_5`` | ``ARKODE_TSITOURAS_7_4_5`` |
+--------------------+-------------------------------------+--------------------------------------+
| 6th Order Explicit | ``ARKODE_VERNER_8_5_6`` | ``ARKODE_VERNER_9_5_6`` |
+--------------------+-------------------------------------+--------------------------------------+
| 8th Order Explicit | ``ARKODE_FEHLBERG_13_7_8`` | ``ARKODE_VERNER_13_7_8`` |
+--------------------+-------------------------------------+--------------------------------------+
| 2nd Order Implicit | ``ARKODE_SDIRK_2_1_2`` | ``ARKODE_ARK2_DIRK_3_1_2`` |
+--------------------+-------------------------------------+--------------------------------------+
| 3rd Order Implicit | ``ARKODE_ARK324L2SA_DIRK_4_2_3`` | ``ARKODE_ESDIRK325L2SA_5_2_3`` |
+--------------------+-------------------------------------+--------------------------------------+
| 4th Order Implicit | ``ARKODE_SDIRK_5_3_4`` | ``ARKODE_ESDIRK436L2SA_6_3_4`` |
+--------------------+-------------------------------------+--------------------------------------+
| 5th Order Implicit | ``ARKODE_ARK548L2SA_DIRK_8_4_5`` | ``ARKODE_ESDIRK547L2SA2_7_4_5`` |
+--------------------+-------------------------------------+--------------------------------------+
| 4th Order ARK | ``ARKODE_ARK436L2SA_ERK_6_3_4`` and | ``ARKODE_ARK437L2SA_ERK_7_3_4`` and |
| | ``ARKODE_ARK436L2SA_DIRK_6_3_4`` | ``ARKODE_ARK437L2SA_DIRK_7_3_4`` |
+--------------------+-------------------------------------+--------------------------------------+
| 5th Order ARK | ``ARKODE_ARK548L2SA_ERK_8_4_5`` and | ``ARKODE_ARK548L2SAb_ERK_8_4_5`` and |
| | ``ARKODE_ARK548L2SA_DIRK_8_4_5`` | ``ARKODE_ARK548L2SAb_DIRK_8_4_5`` |
+--------------------+-------------------------------------+--------------------------------------+


The default value of :cmakeop:`CMAKE_CUDA_ARCHITECTURES` is no longer set to
``70`` and is now determined automatically by CMake. The previous default was
only valid for Volta GPUs while the automatically selected value will vary
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