mrkiss_config.f90 File Reference

Configuration for MRKISS == MR RK KISS == Mitch Richling's Runge-Kutta Keep It Simple Stupid. More...

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Modules
module	mrkiss_config
	Configuration for MRKISS == MR RK KISS == Mitch Richling's Runge-Kutta Keep It Simple Stupid.

Variables
Real type used for computations
integer, parameter, public	mrkiss_config::rk = c_double
	Real kind used across the library.
ab initio frmat specificaiton constants
integer, parameter, public	mrkiss_config::fmt_d_ai = 15
	Real print format: digits to the right of decimal.
integer, parameter, public	mrkiss_config::fmt_w_ai = 25
	Numeric print format: total width.
integer, parameter, public	mrkiss_config::fmt_e_ai = 4
	Real print format: digits in exponent.
Constants related to istats
integer, parameter, public	mrkiss_config::istats_size = 16
	Number of elements in istats(:)
integer, parameter, public	mrkiss_config::istats_max_idx = 10
	Number of used elements in istats(:)
integer, parameter, public	mrkiss_config::isi_num_pts = 1
	istats index num_pts
integer, parameter, public	mrkiss_config::isi_one_reg = 2
	istats index one_step_norm
integer, parameter, public	mrkiss_config::isi_all_norm = 3
	istats index one_etab_norm
integer, parameter, public	mrkiss_config::isi_one_y_err = 4
	istats index one_step_y_delta_err
integer, parameter, public	mrkiss_config::isi_all_y_err = 5
	istats index one_stab_y_delta_err
integer, parameter, public	mrkiss_config::isi_one_y_len = 6
	istats index one_step_y_delta_len
integer, parameter, public	mrkiss_config::isi_one_spp_td = 7
	istats index one_step_stepp_t_delta
integer, parameter, public	mrkiss_config::isi_sdf_step = 8
	istats index one_step_sdf_bisection
integer, parameter, public	mrkiss_config::isi_bic_max = 9
	istats index bisect_fail_max
integer, parameter, public	mrkiss_config::isi_bic_bnd = 10
	istats index bisect_fail_containment
Constants related to istats messages
integer, parameter, public	mrkiss_config::istats_str_lng = 62
	Length of istats content message.
character(len=istats_str_lng), dimension(istats_size), parameter, public	mrkiss_config::istats_strs = [ "Computed solution points ", "step_one call count not caused by an event ", "step_all call count not caused by an event ", "step_one call count caused by y_delta error constraint ", "step_all call count caused by y_delta error constraint ", "step_one call count caused by y_delta length constraint ", "step_one call count caused by step processing with new t_delta", "step_one call count caused by SDF bisection ", "Bisection failures due to max_bisect_o ", "Bisection failures due to target containment ", " ", " ", " ", " ", " ", " " ]
	Array of istats descriptions.
Absolute constants
real(kind=rk), parameter, public	mrkiss_config::zero_epsilon = 1.0e-12_rk
	Used to test for zero.
real(kind=rk), parameter, public	mrkiss_config::t_delta_tiny = tiny(zero_epsilon) * 1.0e18_rk
	Smallest value for t_delta.
ab initio parameters for defaults when we know nothing
real(kind=rk), parameter, public	mrkiss_config::t_delta_ai = 1.0e-4_rk
	t_delta ai default
real(kind=rk), parameter, public	mrkiss_config::error_tol_abs_ai = 1.0e-5_rk
	error_tol_abs ai default
real(kind=rk), parameter, public	mrkiss_config::error_tol_rel_ai = 1.0e-3_rk
	error_tol_rel ai default
integer, parameter, public	mrkiss_config::max_bisect_ai = 1000
	max_bisect ai default
real(kind=rk), parameter, public	mrkiss_config::t_delta_fac_min_ai = 0.5_rk
	t_delta_fac_min ai default
real(kind=rk), parameter, public	mrkiss_config::t_delta_fac_max_ai = 2.0_rk
	t_delta_fac_max ai default
real(kind=rk), parameter, public	mrkiss_config::t_delta_fac_fdg_ai = 0.5_rk
	t_delta_fac_fdg ai default
real(kind=rk), parameter, public	mrkiss_config::sdf_tol_ai = 1.0e-3
	sdf_tol ai default
real(kind=rk), parameter, public	mrkiss_config::t_delta_min_ai = t_delta_tiny
	t_delta_min ai default

Detailed Description

Configuration for MRKISS == MR RK KISS == Mitch Richling's Runge-Kutta Keep It Simple Stupid.

Author

Mitch Richling http://www.mitchr.me/

Standards

F2023

See also

https://github.com/richmit/MRKISS/

Copyright

Copyright (c) 2025, Mitchell Jay Richling http://www.mitchr.me/ All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions, and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Definition in file mrkiss_config.f90.