mpt-solver/examples/solvers.cpp at master · becm/mpt-solver · GitHub

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/*!
 * check solver interfaces
 */

#include <iostream>

#ifndef MPT_INCLUDE
# define MPT_INCLUDE(h) <mpt/solver/h>
#endif

#ifdef with_vode
# include MPT_INCLUDE(vode.h)
#endif

#ifdef with_daesolv
# include MPT_INCLUDE(dassl.h)
# include MPT_INCLUDE(mebdfi.h)
# include MPT_INCLUDE(radau.h)
#endif

#ifdef with_limex
# include MPT_INCLUDE(limex.h)
#endif

#ifdef with_sundials
# include MPT_INCLUDE(sundials.h)
#endif

#ifdef with_nlsolv
# include MPT_INCLUDE(minpack.h)
# include MPT_INCLUDE(portn2.h)
#endif

#ifdef __GLIBC__
# include <mcheck.h>
#else
# define mtrace()
#endif

using namespace mpt;
using namespace mpt::solver;

static int val(void *, const property *pr)
{
	if (!pr) {
		return BadArgument;
	}
	if (!pr->name) {
		std::cout << '<' << pr->val << '>' << std::endl;
	} else {
		std::cout << pr->name << " = " << pr->val << std::endl;
	}
	return 0;
}

static void info(generic &s)
{
	property pr("");
	const char *name = "";
	const char *type = "";
	const char *ver  = "";
	s.property(&pr);
	if (pr.name) name = pr.name;
	if (pr.desc) type = pr.desc;
	pr.name = "version";
	s.property(&pr);
	ver = pr.val.string();
	int types = s.property(0);
	println("<%s> [0x%x] %s (%s)", name, types, ver, type);

	s.report(Header | Status | Values | Report, val, 0);
	println(0);
}

static void pde(IVP &s)
{
	double vec[3] = { 1, 2, 3 };
	span<double> val(vec, 3);
	// PDE equotations and grid
	mpt_object_set(&s, "", "iD", 3, val);
	// PDE time and start values
	mpt_object_set(&s, 0, "dddd", 0.5, 1.1, 1.2, 1.3);

	s.set(IVP::rside(0));
	s.set(IVP::pdefcn(0));

	s.prepare();
}

#ifdef with_nlsolv
static void nls(NLS &s)
{
	// equotation count
	mpt_object_set(&s, "", "i", 3);
	// initial parameter values
	mpt_object_set(&s, 0, "ddd", 1.1, 1.2, 1.3);

	s.set(NLS::functions(0));

	s.prepare();
}
#endif

int main()
{
	mtrace();
#ifdef with_vode
	Vode v;     pde(v);   info(v);
#endif
#ifdef with_daesolv
	Dassl d;    pde(d);   info(d);
	Mebdfi m;   pde(m);   info(m);
	Radau r;    pde(r);   info(r);
#endif
#ifdef with_limex
	Limex l;    pde(l);   info(l);
#endif
#ifdef with_sundials
	CVode cv;   pde(cv);  info(cv);
	IDA ida;    pde(ida); info(ida);
#endif
#ifdef with_nlsolv
	MinPack mp; nls(mp);  info(mp);
	PortN2 n2;  nls(n2);  info(n2);
#endif
}