Moved standalone from src to samples
This commit is contained in:
jpekkila
184
samples/standalone/config_loader.cc
Normal file
184
samples/standalone/config_loader.cc
Normal file
@@ -0,0 +1,184 @@
|
||||
/*
|
||||
Copyright (C) 2014-2020, Johannes Pekkila, Miikka Vaisala.
|
||||
|
||||
This file is part of Astaroth.
|
||||
|
||||
Astaroth is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
Astaroth is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with Astaroth. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* \brief Brief info.
|
||||
*
|
||||
* Detailed info.
|
||||
*
|
||||
*/
|
||||
#include "config_loader.h"
|
||||
|
||||
#include <limits.h> // UINT_MAX
|
||||
#include <stdint.h> // uint8_t, uint32_t
|
||||
#include <stdio.h> // print
|
||||
#include <string.h> // memset
|
||||
|
||||
#include "errchk.h"
|
||||
#include "math_utils.h"
|
||||
|
||||
/**
|
||||
\brief Find the index of the keyword in names
|
||||
\return Index in range 0...n if the keyword is in names. -1 if the keyword was
|
||||
not found.
|
||||
*/
|
||||
static int
|
||||
find_str(const char keyword[], const char* names[], const int& n)
|
||||
{
|
||||
for (int i = 0; i < n; ++i)
|
||||
if (!strcmp(keyword, names[i]))
|
||||
return i;
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
static void
|
||||
parse_config(const char* path, AcMeshInfo* config)
|
||||
{
|
||||
FILE* fp;
|
||||
fp = fopen(path, "r");
|
||||
// For knowing which .conf file will be used
|
||||
printf("Config file path: \n %s \n ", path);
|
||||
ERRCHK(fp != NULL);
|
||||
|
||||
const size_t BUF_SIZE = 128;
|
||||
char keyword[BUF_SIZE];
|
||||
char value[BUF_SIZE];
|
||||
int items_matched;
|
||||
while ((items_matched = fscanf(fp, "%s = %s", keyword, value)) != EOF) {
|
||||
|
||||
if (items_matched < 2)
|
||||
continue;
|
||||
|
||||
int idx = -1;
|
||||
if ((idx = find_str(keyword, intparam_names, NUM_INT_PARAMS)) >= 0)
|
||||
config->int_params[idx] = atoi(value);
|
||||
else if ((idx = find_str(keyword, realparam_names, NUM_REAL_PARAMS)) >= 0)
|
||||
config->real_params[idx] = AcReal(atof(value));
|
||||
}
|
||||
|
||||
fclose(fp);
|
||||
}
|
||||
|
||||
void
|
||||
update_config(AcMeshInfo* config)
|
||||
{
|
||||
config->int_params[AC_mx] = config->int_params[AC_nx] + STENCIL_ORDER;
|
||||
///////////// PAD TEST
|
||||
// config->int_params[AC_mx] = config->int_params[AC_nx] + STENCIL_ORDER + PAD_SIZE;
|
||||
///////////// PAD TEST
|
||||
config->int_params[AC_my] = config->int_params[AC_ny] + STENCIL_ORDER;
|
||||
config->int_params[AC_mz] = config->int_params[AC_nz] + STENCIL_ORDER;
|
||||
|
||||
// Bounds for the computational domain, i.e. nx_min <= i < nx_max
|
||||
config->int_params[AC_nx_min] = STENCIL_ORDER / 2;
|
||||
config->int_params[AC_nx_max] = config->int_params[AC_nx_min] + config->int_params[AC_nx];
|
||||
config->int_params[AC_ny_min] = STENCIL_ORDER / 2;
|
||||
config->int_params[AC_ny_max] = config->int_params[AC_ny] + STENCIL_ORDER / 2;
|
||||
config->int_params[AC_nz_min] = STENCIL_ORDER / 2;
|
||||
config->int_params[AC_nz_max] = config->int_params[AC_nz] + STENCIL_ORDER / 2;
|
||||
|
||||
// Spacing
|
||||
config->real_params[AC_inv_dsx] = AcReal(1.) / config->real_params[AC_dsx];
|
||||
config->real_params[AC_inv_dsy] = AcReal(1.) / config->real_params[AC_dsy];
|
||||
config->real_params[AC_inv_dsz] = AcReal(1.) / config->real_params[AC_dsz];
|
||||
config->real_params[AC_dsmin] = min(
|
||||
config->real_params[AC_dsx], min(config->real_params[AC_dsy], config->real_params[AC_dsz]));
|
||||
|
||||
// Real grid coordanates (DEFINE FOR GRID WITH THE GHOST ZONES)
|
||||
config->real_params[AC_xlen] = config->real_params[AC_dsx] * config->int_params[AC_mx];
|
||||
config->real_params[AC_ylen] = config->real_params[AC_dsy] * config->int_params[AC_my];
|
||||
config->real_params[AC_zlen] = config->real_params[AC_dsz] * config->int_params[AC_mz];
|
||||
|
||||
config->real_params[AC_xorig] = AcReal(.5) * config->real_params[AC_xlen];
|
||||
config->real_params[AC_yorig] = AcReal(.5) * config->real_params[AC_ylen];
|
||||
config->real_params[AC_zorig] = AcReal(.5) * config->real_params[AC_zlen];
|
||||
|
||||
/* Additional helper params */
|
||||
// Int helpers
|
||||
config->int_params[AC_mxy] = config->int_params[AC_mx] * config->int_params[AC_my];
|
||||
config->int_params[AC_nxy] = config->int_params[AC_nx] * config->int_params[AC_ny];
|
||||
config->int_params[AC_nxyz] = config->int_params[AC_nxy] * config->int_params[AC_nz];
|
||||
|
||||
// Real helpers
|
||||
config->real_params[AC_cs2_sound] = config->real_params[AC_cs_sound] *
|
||||
config->real_params[AC_cs_sound];
|
||||
|
||||
config->real_params[AC_cv_sound] = config->real_params[AC_cp_sound] /
|
||||
config->real_params[AC_gamma];
|
||||
|
||||
AcReal G_CONST_CGS = AcReal(
|
||||
6.674e-8); // cm^3/(g*s^2) GGS definition //TODO define in a separate module
|
||||
AcReal M_sun = AcReal(1.989e33); // g solar mass
|
||||
|
||||
config->real_params[AC_unit_mass] = (config->real_params[AC_unit_length] *
|
||||
config->real_params[AC_unit_length] *
|
||||
config->real_params[AC_unit_length]) *
|
||||
config->real_params[AC_unit_density];
|
||||
|
||||
config->real_params[AC_M_sink] = config->real_params[AC_M_sink_Msun] * M_sun /
|
||||
config->real_params[AC_unit_mass];
|
||||
config->real_params[AC_M_sink_init] = config->real_params[AC_M_sink_Msun] * M_sun /
|
||||
config->real_params[AC_unit_mass];
|
||||
|
||||
config->real_params[AC_G_const] = G_CONST_CGS / ((config->real_params[AC_unit_velocity] *
|
||||
config->real_params[AC_unit_velocity]) /
|
||||
(config->real_params[AC_unit_density] *
|
||||
config->real_params[AC_unit_length] *
|
||||
config->real_params[AC_unit_length]));
|
||||
|
||||
config->real_params[AC_sq2GM_star] = AcReal(sqrt(AcReal(2) * config->real_params[AC_GM_star]));
|
||||
|
||||
#if VERBOSE_PRINTING // Defined in astaroth.h
|
||||
printf("###############################################################\n");
|
||||
printf("Config dimensions recalculated:\n");
|
||||
acPrintMeshInfo(*config);
|
||||
printf("###############################################################\n");
|
||||
#endif
|
||||
}
|
||||
|
||||
/**
|
||||
\brief Loads data from astaroth.conf into a config struct.
|
||||
\return 0 on success, -1 if there are potentially uninitialized values.
|
||||
*/
|
||||
int
|
||||
load_config(const char* config_path, AcMeshInfo* config)
|
||||
{
|
||||
int retval = 0;
|
||||
ERRCHK(config_path);
|
||||
|
||||
// memset reads the second parameter as a byte even though it says int in
|
||||
// the function declaration
|
||||
memset(config, (uint8_t)0xFF, sizeof(*config));
|
||||
|
||||
parse_config(config_path, config);
|
||||
update_config(config);
|
||||
|
||||
// sizeof(config) must be a multiple of 4 bytes for this to work
|
||||
ERRCHK(sizeof(*config) % sizeof(uint32_t) == 0);
|
||||
for (size_t i = 0; i < sizeof(*config) / sizeof(uint32_t); ++i) {
|
||||
if (((uint32_t*)config)[i] == (uint32_t)0xFFFFFFFF) {
|
||||
WARNING("Some config values may be uninitialized. "
|
||||
"See that all are defined in astaroth.conf\n");
|
||||
retval = -1;
|
||||
}
|
||||
}
|
||||
return retval;
|
||||
}
|
||||
Reference in New Issue
Block a user