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Commit 61c89635 authored by James Willis's avatar James Willis
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Moved the testing into a function and tested each corner cell and each cell at... 

Moved the testing into a function and tested each corner cell and each cell at the centre of each face.
parent a62ba4bc
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tests/testPeriodicBC.c
View file @ 61c89635
......@@ -211,9 +211,8 @@ void end_calculation(struct cell *c) {
/**
* @brief Dump all the particles to a file
*/
void dump_particle_fields(char *fileName, struct cell *main_cell,
struct cell **cells) {
FILE *file = fopen(fileName, "w");
void dump_particle_fields(char *fileName, struct cell *main_cell) {
FILE *file = fopen(fileName, "a");
/* Write header */
fprintf(file,
......@@ -251,43 +250,6 @@ void dump_particle_fields(char *fileName, struct cell *main_cell,
#endif
);
}
/* Write all other cells */
for (int i = 0; i < 3; ++i) {
for (int j = 0; j < 3; ++j) {
for (int k = 0; k < 3; ++k) {
struct cell *cj = cells[i * 9 + j * 3 + k];
if (cj == main_cell) continue;
fprintf(file,
"# Offset: [%2d %2d %2d] -----------------------------------\n",
i - 1, j - 1, k - 1);
for (int pjd = 0; pjd < cj->count; pjd++) {
fprintf(
file,
"%6llu %10f %10f %10f %10f %10f %10f %13e %13e %13e %13e %13e "
"%13e %13e %13e\n",
cj->parts[pjd].id, cj->parts[pjd].x[0], cj->parts[pjd].x[1],
cj->parts[pjd].x[2], cj->parts[pjd].v[0], cj->parts[pjd].v[1],
cj->parts[pjd].v[2], hydro_get_density(&cj->parts[pjd]),
#if defined(GIZMO_SPH) || defined(SHADOWFAX_SPH)
0.f,
#else
main_cell->parts[pjd].density.rho_dh,
#endif
cj->parts[pjd].density.wcount, cj->parts[pjd].density.wcount_dh,
#if defined(GADGET2_SPH) || defined(DEFAULT_SPH) || defined(HOPKINS_PE_SPH)
cj->parts[pjd].density.div_v, cj->parts[pjd].density.rot_v[0],
cj->parts[pjd].density.rot_v[1], cj->parts[pjd].density.rot_v[2]
#else
0., 0., 0., 0.
#endif
);
}
}
}
}
fclose(file);
}
......@@ -319,6 +281,97 @@ void runner_dopair1_density(struct runner *r, struct cell *ci, struct cell *cj);
void runner_dopair1_density_vec(struct runner *r, struct cell *ci,
struct cell *cj);
void test_boundary_conditions(struct cell **cells, struct runner runner, const int loc_i, const int loc_j, const int loc_k, const int dim, char *swiftOutputFileName, char *bruteForceOutputFileName) {
/* Store the main cell for future use */
struct cell *main_cell = cells[loc_i * (dim*dim) + loc_j * dim + loc_k];
/* Zero the fields */
for (int j = 0; j < 512; ++j) zero_particle_fields(cells[j]);
/* Run all the pairs */
#if !(defined(MINIMAL_SPH) && defined(WITH_VECTORIZATION))
#ifdef WITH_VECTORIZATION
runner.ci_cache.count = 0;
cache_init(&runner.ci_cache, 512);
runner.cj_cache.count = 0;
cache_init(&runner.cj_cache, 512);
#endif
/* Now loop over all the neighbours of this cell
* and perform the pair interactions. */
for (int ii = -1; ii < 2; ii++) {
int iii = loc_i + ii;
iii = (iii + dim) % dim;
for (int jj = -1; jj < 2; jj++) {
int jjj = loc_j + jj;
jjj = (jjj + dim) % dim;
for (int kk = -1; kk < 2; kk++) {
int kkk = loc_k + kk;
kkk = (kkk + dim) % dim;
/* Get the neighbouring cell */
struct cell *cj = cells[iii * (dim*dim) + jjj * dim + kkk];
if (cj != main_cell) DOPAIR1(&runner, main_cell, cj);
}
}
}
/* And now the self-interaction */
DOSELF1(&runner, main_cell);
#endif
/* Let's get physical ! */
end_calculation(main_cell);
/* Dump particles from the main cell. */
dump_particle_fields(swiftOutputFileName, main_cell);
/* Now perform a brute-force version for accuracy tests */
/* Zero the fields */
for (int i = 0; i < 512; ++i) zero_particle_fields(cells[i]);
#if !(defined(MINIMAL_SPH) && defined(WITH_VECTORIZATION))
/* Now loop over all the neighbours of this cell
* and perform the pair interactions. */
for (int ii = -1; ii < 2; ii++) {
int iii = loc_i + ii;
iii = (iii + dim) % dim;
for (int jj = -1; jj < 2; jj++) {
int jjj = loc_j + jj;
jjj = (jjj + dim) % dim;
for (int kk = -1; kk < 2; kk++) {
int kkk = loc_k + kk;
kkk = (kkk + dim) % dim;
/* Get the neighbouring cell */
struct cell *cj = cells[iii * (dim*dim) + jjj * dim + kkk];
if (cj != main_cell) pairs_all_density(&runner, main_cell, cj);
}
}
}
/* And now the self-interaction */
self_all_density(&runner, main_cell);
#endif
/* Let's get physical ! */
end_calculation(main_cell);
/* Dump */
dump_particle_fields(bruteForceOutputFileName, main_cell);
}
/* And go... */
int main(int argc, char *argv[]) {
......@@ -328,7 +381,8 @@ int main(int argc, char *argv[]) {
double perturbation = 0.;
double threshold = ACC_THRESHOLD;
char outputFileNameExtension[200] = "";
char outputFileName[200] = "";
char swiftOutputFileName[200] = "";
char bruteForceOutputFileName[200] = "";
enum velocity_types vel = velocity_zero;
/* Initialize CPU frequency, this also starts time. */
......@@ -432,7 +486,6 @@ int main(int argc, char *argv[]) {
/* Construct some cells */
struct cell *cells[512];
struct cell *main_cell;
const int dim = 8;
static long long partId = 0;
for (int i = 0; i < dim; ++i) {
......@@ -449,104 +502,33 @@ int main(int argc, char *argv[]) {
}
}
/* Test cell location. */
const int loc_i = 0, loc_j = dim - 1, loc_k = 0;
/* Store the main cell for future use */
main_cell = cells[loc_i * (dim*dim) + loc_j * dim + loc_k];
/* Zero the fields */
for (int j = 0; j < 512; ++j) zero_particle_fields(cells[j]);
/* Run all the pairs */
#if !(defined(MINIMAL_SPH) && defined(WITH_VECTORIZATION))
#ifdef WITH_VECTORIZATION
runner.ci_cache.count = 0;
cache_init(&runner.ci_cache, 512);
runner.cj_cache.count = 0;
cache_init(&runner.cj_cache, 512);
#endif
/* Now loop over all the neighbours of this cell
* and perform the pair interactions. */
for (int ii = -1; ii < 2; ii++) {
int iii = loc_i + ii;
iii = (iii + dim) % dim;
for (int jj = -1; jj < 2; jj++) {
int jjj = loc_j + jj;
jjj = (jjj + dim) % dim;
for (int kk = -1; kk < 2; kk++) {
int kkk = loc_k + kk;
kkk = (kkk + dim) % dim;
/* Get the neighbouring cell */
struct cell *cj = cells[iii * (dim*dim) + jjj * dim + kkk];
if (cj != main_cell) DOPAIR1(&runner, main_cell, cj);
}
}
}
#endif
#if !(defined(MINIMAL_SPH) && defined(WITH_VECTORIZATION))
/* And now the self-interaction */
DOSELF1(&runner, main_cell);
#endif
/* Let's get physical ! */
end_calculation(main_cell);
/* Dump particles from the main cell. */
sprintf(outputFileName, "swift_periodic_BC_%s.dat",
/* Create output file names. */
sprintf(swiftOutputFileName, "swift_periodic_BC_%s.dat",
outputFileNameExtension);
sprintf(bruteForceOutputFileName, "brute_force_periodic_BC_%s.dat",
outputFileNameExtension);
dump_particle_fields(outputFileName, main_cell, cells);
/* Now perform a brute-force version for accuracy tests */
/* Zero the fields */
for (int i = 0; i < 512; ++i) zero_particle_fields(cells[i]);
#if !(defined(MINIMAL_SPH) && defined(WITH_VECTORIZATION))
/* Now loop over all the neighbours of this cell
* and perform the pair interactions. */
for (int ii = -1; ii < 2; ii++) {
int iii = loc_i + ii;
iii = (iii + dim) % dim;
for (int jj = -1; jj < 2; jj++) {
int jjj = loc_j + jj;
jjj = (jjj + dim) % dim;
for (int kk = -1; kk < 2; kk++) {
int kkk = loc_k + kk;
kkk = (kkk + dim) % dim;
/* Get the neighbouring cell */
struct cell *cj = cells[iii * (dim*dim) + jjj * dim + kkk];
if (cj != main_cell) pairs_all_density(&runner, main_cell, cj);
}
}
}
/* And now the self-interaction */
self_all_density(&runner, main_cell);
#endif
/* Let's get physical ! */
end_calculation(main_cell);
/* Dump */
sprintf(outputFileName, "brute_force_periodic_BC_%s.dat", outputFileNameExtension);
dump_particle_fields(outputFileName, main_cell, cells);
/* Delete files if they already exist. */
remove(swiftOutputFileName);
remove(bruteForceOutputFileName);
/* Test the periodic boundary conditions for each of the 8 corners. */
test_boundary_conditions(cells, runner, 0, 0, 0, dim, swiftOutputFileName, bruteForceOutputFileName);
test_boundary_conditions(cells, runner, dim - 1, 0, 0, dim, swiftOutputFileName, bruteForceOutputFileName);
test_boundary_conditions(cells, runner, dim - 1, 0, dim - 1, dim, swiftOutputFileName, bruteForceOutputFileName);
test_boundary_conditions(cells, runner, 0, 0, dim - 1, dim, swiftOutputFileName, bruteForceOutputFileName);
test_boundary_conditions(cells, runner, 0, dim - 1, 0, dim, swiftOutputFileName, bruteForceOutputFileName);
test_boundary_conditions(cells, runner, dim - 1, dim - 1, 0, dim, swiftOutputFileName, bruteForceOutputFileName);
test_boundary_conditions(cells, runner, 0, dim - 1, dim - 1, dim, swiftOutputFileName, bruteForceOutputFileName);
test_boundary_conditions(cells, runner, dim - 1, dim - 1, dim - 1, dim, swiftOutputFileName, bruteForceOutputFileName);
/* Test the boundary conditions for cells at the centre of each face of the box. */
test_boundary_conditions(cells, runner, (dim - 1) / 2, (dim - 1) / 2, 0, dim, swiftOutputFileName, bruteForceOutputFileName);
test_boundary_conditions(cells, runner, dim - 1, (dim - 1) / 2, (dim - 1) / 2, dim, swiftOutputFileName, bruteForceOutputFileName);
test_boundary_conditions(cells, runner, (dim - 1) / 2, (dim - 1) / 2, dim - 1, dim, swiftOutputFileName, bruteForceOutputFileName);
test_boundary_conditions(cells, runner, 0, (dim - 1) / 2, (dim - 1) / 2, dim, swiftOutputFileName, bruteForceOutputFileName);
test_boundary_conditions(cells, runner, (dim - 1) / 2, 0, (dim - 1) / 2, dim, swiftOutputFileName, bruteForceOutputFileName);
test_boundary_conditions(cells, runner, (dim - 1) / 2, dim - 1, (dim - 1) / 2, dim, swiftOutputFileName, bruteForceOutputFileName);
/* Clean things to make the sanitizer happy ... */
for (int i = 0; i < 512; ++i) clean_up(cells[i]);
......
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