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SUNDIALS v6.7.0
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@gardner48 gardner48 released this 18 Dec 18:52
· 155 commits to main since this release
v6.7.0
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gardner48 David Gardner
SSH Key Fingerprint: qYLY4EZLxxBNzu72w/zlo99PJwZzmY2gMd7QCS5nnx4 Learn about vigilant mode.
aaeab8d
This commit was signed with the committer’s verified signature.
gardner48 David Gardner
SSH Key Fingerprint: qYLY4EZLxxBNzu72w/zlo99PJwZzmY2gMd7QCS5nnx4 Learn about vigilant mode.

Added the SUNAdaptController base class, ported ARKODE's internal implementations of time step controllers into implementations of this class, and updated ARKODE to use these objects instead of its own implementations. Added ARKStepSetAdaptController and ERKStepSetAdaptController routines so that users can modify controller parameters, or even provide custom implementations.

Added the routines ARKStepSetAdaptivityAdjustment and ERKStepSetAdaptivityAdjustment, that allow users to adjust the value for the method order supplied to the temporal adaptivity controllers. The ARKODE default for this adjustment has been -1 since its initial release, but for some applications a value of 0 is more appropriate. Users who notice that their simulations encounter a large number of temporal error test failures may want to experiment with adjusting this value.

Added the third order ERK method ARKODE_SHU_OSHER_3_2_3, the fourth order ERK method ARKODE_SOFRONIOU_SPALETTA_5_3_4, the sixth order ERK method ARKODE_VERNER_9_5_6, the seventh order ERK method ARKODE_VERNER_10_6_7, the eighth order ERK method ARKODE_VERNER_13_7_8, and the ninth order ERK method ARKODE_VERNER_16_8_9.

ARKStep, ERKStep, MRIStep, and SPRKStep were updated to remove a potentially unnecessary right-hand side evaluation at the end of an integration. ARKStep was additionally updated to remove extra right-hand side evaluations when using an explicit method or an implicit method with an explicit first stage.

Improved computational complexity of SUNMatScaleAddI_Sparse from O(M*N) to O(NNZ).

Added Fortran support for the LAPACK dense SUNLinearSolver implementation.

Fixed a regression introduced by the stop time bug fix in v6.6.1 where ARKODE, CVODE, CVODES, IDA, and IDAS would return at the stop time rather than the requested output time if the stop time was reached in the same step in which the output time was passed.

Fixed a bug in ERKStep where methods with c[s-1] = 1 but a[s-1,j] != b[j] were incorrectly treated as having the first same as last (FSAL) property.

Fixed a bug in ARKODE where ARKStepSetInterpolateStopTime would return an interpolated solution at the stop time in some cases when interpolation was disabled.

Fixed a bug in ARKStepSetTableNum wherein it did not recognize ARKODE_ARK2_ERK_3_1_2 and ARKODE_ARK2_DIRK_3_1_2 as a valid additive Runge--Kutta Butcher table pair.

Fixed a bug in MRIStepCoupling_Write where explicit coupling tables were not written to the output file pointer.

The MRIStepInnerStepper class in MRIStep was updated to make supplying an MRIStepInnerFullRhsFn optional.

Fixed scaling bug in SUNMatScaleAddI_Sparse for non-square matrices.

Changed the SUNProfiler so that it does not rely on MPI_WTime in any case. This fixes GitHub Issue #312.

Fixed missing soversions in some SUNLinearSolver and SUNNonlinearSolver CMake targets.

Renamed some internal types in CVODES and IDAS to allow both packages to be built together in the same binary.

Assets 15
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