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cvodes_utils.hpp
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1 #ifndef STAN_MATH_REV_MAT_FUNCTOR_CVODES_UTILS_HPP
2 #define STAN_MATH_REV_MAT_FUNCTOR_CVODES_UTILS_HPP
3
4 #include <cvodes/cvodes.h>
5 #include <cvodes/cvodes_band.h>
6 #include <cvodes/cvodes_dense.h>
7 #include <nvector/nvector_serial.h>
8 #include <sstream>
9 #include <string>
10
11 namespace stan {
12
13 namespace math {
14
15 // no-op error handler to silence CVodes error output; errors handled
16 // directly by Stan
17 extern "C"
18 inline void cvodes_silent_err_handler(int error_code, const char *module,
19 const char *function, char *msg,
20 void *eh_data) {
21 }
22
23 inline void cvodes_check_flag(int flag, const std::string& func_name) {
24 if (flag < 0) {
25 std::ostringstream ss;
26 ss << func_name << " failed with error flag " << flag;
27 throw std::runtime_error(ss.str());
28 }
29 }
30
31 inline void cvodes_set_options(void* cvodes_mem,
32 double rel_tol, double abs_tol,
33 // NOLINTNEXTLINE(runtime/int)
34 long int max_num_steps) {
35 // forward CVode errors to noop error handler
36 CVodeSetErrHandlerFn(cvodes_mem, cvodes_silent_err_handler, 0);
37
38 // Initialize solver parameters
39 cvodes_check_flag(CVodeSStolerances(cvodes_mem, rel_tol, abs_tol),
40 "CVodeSStolerances");
41
42 cvodes_check_flag(CVodeSetMaxNumSteps(cvodes_mem, max_num_steps),
43 "CVodeSetMaxNumSteps");
44
45 double init_step = 0;
46 cvodes_check_flag(CVodeSetInitStep(cvodes_mem, init_step),
47 "CVodeSetInitStep");
48
49 long int max_err_test_fails = 20; // NOLINT(runtime/int)
50 cvodes_check_flag(CVodeSetMaxErrTestFails(cvodes_mem, max_err_test_fails),
51 "CVodeSetMaxErrTestFails");
52
53 long int max_conv_fails = 50; // NOLINT(runtime/int)
54 cvodes_check_flag(CVodeSetMaxConvFails(cvodes_mem, max_conv_fails),
55 "CVodeSetMaxConvFails");
56 }
57
58 }
59 }
60 #endif
stan::math::cvodes_set_options
void cvodes_set_options(void *cvodes_mem, double rel_tol, double abs_tol, long int max_num_steps)
Definition: cvodes_utils.hpp:31
stan
Definition: log_sum_exp.hpp:8
stan::math::cvodes_check_flag
void cvodes_check_flag(int flag, const std::string &func_name)
Definition: cvodes_utils.hpp:23
stan::math::cvodes_silent_err_handler
void cvodes_silent_err_handler(int error_code, const char *module, const char *function, char *msg, void *eh_data)
Definition: cvodes_utils.hpp:18

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