int main(int argc, char *argv[])
{
Parameters *params; // user defined parameters
double ***phi; // flux array
FILE *fp = NULL; // output file
// Get inputs
params = set_default_params();
parse_params("parameters", params);
read_CLI(argc, argv, params);
print_params(params);
// Initial guess of flux
phi = init_flux(params);
solve(phi, params);
printf("keff = %f\n", params->k);
// Write solution
if(params->write_flux == TRUE) {
write_flux(phi, params, fp);
}
// Free memory
free_flux(phi);
free(params);
return 0;
}
int main( int argc, char * argv[] )
{
int version = 4;
int mype = 0;
#ifdef MPI
int nranks;
MPI_Status stat;
MPI_Init(&argc, &argv);
MPI_Comm_size(MPI_COMM_WORLD, &nranks);
MPI_Comm_rank(MPI_COMM_WORLD, &mype);
#endif
#ifdef PAPI
papi_serial_init();
#endif
srand(time(NULL) * (mype+1));
Input input = set_default_input();
read_CLI( argc, argv, &input );
calculate_derived_inputs( &input );
if( mype == 0 )
logo(version);
#ifdef OPENMP
omp_set_num_threads(input.nthreads);
#endif
Params params = build_tracks( &input );
CommGrid grid = init_mpi_grid( input );
if( mype == 0 )
print_input_summary(input);
float res;
float keff = 1.0;
int num_iters = 1;
double time_transport = 0;
double time_flux_exchange = 0;
double time_renormalize_flux = 0;
double time_update_sources = 0;
double time_compute_keff = 0;
double start, stop;
if(mype==0)
{
center_print("SIMULATION", 79);
border_print();
}
for( int i = 0; i < num_iters; i++)
{
// Transport Sweep
start = get_time();
transport_sweep(¶ms, &input);
stop = get_time();
time_transport += stop-start;
// Domain Boundary Flux Exchange (MPI)
#ifdef MPI
start = get_time();
fast_transfer_boundary_fluxes(params, input, grid);
stop = get_time();
time_flux_exchange += stop-start;
#endif
// Flux Renormalization
start = get_time();
renormalize_flux(params,input, grid);
stop = get_time();
time_renormalize_flux += stop-start;
// Update Source Regions
start = get_time();
res = update_sources(params, input, keff);
stop = get_time();
time_update_sources += stop-start;
// Calculate K-Effective
start = get_time();
keff = compute_keff(params, input, grid);
stop = get_time();
time_compute_keff += stop-start;
if( mype == 0 )
printf("keff = %f\n", keff);
}
double time_total = time_transport + time_flux_exchange
+ time_renormalize_flux + time_update_sources + time_compute_keff;
if( mype == 0 )
{
border_print();
center_print("RESULTS SUMMARY", 79);
border_print();
printf("Transport Sweep Time: %6.2lf sec (%4.1lf%%)\n",
time_transport, 100*time_transport/time_total);
printf("Domain Flux Exchange Time: %6.2lf sec (%4.1lf%%)\n",
time_flux_exchange, 100*time_flux_exchange/time_total);
printf("Flux Renormalization Time: %6.2lf sec (%4.1lf%%)\n",
time_renormalize_flux, 100*time_renormalize_flux/time_total);
printf("Update Source Time: %6.2lf sec (%4.1lf%%)\n",
time_update_sources, 100*time_update_sources/time_total);
printf("K-Effective Calc Time: %6.2lf sec (%4.1lf%%)\n",
time_compute_keff, 100*time_compute_keff/time_total);
printf("Total Time: %6.2lf sec\n", time_total);
}
long tracks_per_second = 2 * input.ntracks/time_transport;
#ifdef MPI
MPI_Barrier(grid.cart_comm_3d);
long global_tps = 0;
MPI_Reduce( &tracks_per_second, // Send Buffer
&global_tps, // Receive Buffer
1, // Element Count
MPI_LONG, // Element Type
MPI_SUM, // Reduciton Operation Type
0, // Master Rank
grid.cart_comm_3d ); // MPI Communicator
MPI_Barrier(grid.cart_comm_3d);
tracks_per_second = global_tps;
#endif
if( mype == 0 )
{
printf("Time per Intersection: ");
printf("%.2lf ns\n", time_per_intersection( input, time_transport ));
border_print();
}
free_2D_tracks( params.tracks_2D );
free_tracks( params.tracks );
#ifdef MPI
MPI_Finalize();
#endif
return 0;
}
int main( int argc, char* argv[] )
{
// =====================================================================
// Initialization & Command Line Read-In
// =====================================================================
int version = 13;
int mype = 0;
int max_procs = omp_get_num_procs();
int i, thread, mat;
unsigned long seed;
double omp_start, omp_end, p_energy;
unsigned long long vhash = 0;
int nprocs;
#ifdef MPI
MPI_Status stat;
MPI_Init(&argc, &argv);
MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
MPI_Comm_rank(MPI_COMM_WORLD, &mype);
#endif
// rand() is only used in the serial initialization stages.
// A custom RNG is used in parallel portions.
#ifdef VERIFICATION
srand(26);
#else
srand(time(NULL));
#endif
// Process CLI Fields -- store in "Inputs" structure
Inputs in = read_CLI( argc, argv );
// Set number of OpenMP Threads
omp_set_num_threads(in.nthreads);
// Print-out of Input Summary
if( mype == 0 )
print_inputs( in, nprocs, version );
// =====================================================================
// Prepare Nuclide Energy Grids, Unionized Energy Grid, & Material Data
// =====================================================================
// Allocate & fill energy grids
#ifndef BINARY_READ
if( mype == 0) printf("Generating Nuclide Energy Grids...\n");
#endif
NuclideGridPoint ** nuclide_grids = gpmatrix(in.n_isotopes,in.n_gridpoints);
#ifdef VERIFICATION
generate_grids_v( nuclide_grids, in.n_isotopes, in.n_gridpoints );
#else
generate_grids( nuclide_grids, in.n_isotopes, in.n_gridpoints );
#endif
// Sort grids by energy
#ifndef BINARY_READ
if( mype == 0) printf("Sorting Nuclide Energy Grids...\n");
sort_nuclide_grids( nuclide_grids, in.n_isotopes, in.n_gridpoints );
#endif
// Prepare Unionized Energy Grid Framework
#ifndef BINARY_READ
GridPoint * energy_grid = generate_energy_grid( in.n_isotopes,
in.n_gridpoints, nuclide_grids );
#else
GridPoint * energy_grid = (GridPoint *)malloc( in.n_isotopes *
in.n_gridpoints * sizeof( GridPoint ) );
int * index_data = (int *) malloc( in.n_isotopes * in.n_gridpoints
* in.n_isotopes * sizeof(int));
for( i = 0; i < in.n_isotopes*in.n_gridpoints; i++ )
energy_grid[i].xs_ptrs = &index_data[i*in.n_isotopes];
#endif
// Double Indexing. Filling in energy_grid with pointers to the
// nuclide_energy_grids.
#ifndef BINARY_READ
set_grid_ptrs( energy_grid, nuclide_grids, in.n_isotopes, in.n_gridpoints );
#endif
#ifdef BINARY_READ
if( mype == 0 ) printf("Reading data from \"XS_data.dat\" file...\n");
binary_read(in.n_isotopes, in.n_gridpoints, nuclide_grids, energy_grid);
#endif
// Get material data
if( mype == 0 )
printf("Loading Mats...\n");
int *num_nucs = load_num_nucs(in.n_isotopes);
int **mats = load_mats(num_nucs, in.n_isotopes);
#ifdef VERIFICATION
double **concs = load_concs_v(num_nucs);
#else
double **concs = load_concs(num_nucs);
#endif
#ifdef BINARY_DUMP
if( mype == 0 ) printf("Dumping data to binary file...\n");
binary_dump(in.n_isotopes, in.n_gridpoints, nuclide_grids, energy_grid);
if( mype == 0 ) printf("Binary file \"XS_data.dat\" written! Exiting...\n");
return 0;
#endif
// =====================================================================
// Cross Section (XS) Parallel Lookup Simulation Begins
// =====================================================================
// Outer benchmark loop can loop through all possible # of threads
#ifdef BENCHMARK
for( int bench_n = 1; bench_n <=omp_get_num_procs(); bench_n++ )
{
in.nthreads = bench_n;
omp_set_num_threads(in.nthreads);
#endif
if( mype == 0 )
{
printf("\n");
border_print();
center_print("SIMULATION", 79);
border_print();
}
omp_start = omp_get_wtime();
//initialize papi with one thread (master) here
#ifdef PAPI
if ( PAPI_library_init(PAPI_VER_CURRENT) != PAPI_VER_CURRENT){
fprintf(stderr, "PAPI library init error!\n");
exit(1);
}
#endif
// OpenMP compiler directives - declaring variables as shared or private
#pragma omp parallel default(none) \
private(i, thread, p_energy, mat, seed) \
shared( max_procs, in, energy_grid, nuclide_grids, \
mats, concs, num_nucs, mype, vhash)
{
// Initialize parallel PAPI counters
#ifdef PAPI
int eventset = PAPI_NULL;
int num_papi_events;
#pragma omp critical
{
counter_init(&eventset, &num_papi_events);
}
#endif
double macro_xs_vector[5];
double * xs = (double *) calloc(5, sizeof(double));
// Initialize RNG seeds for threads
thread = omp_get_thread_num();
seed = (thread+1)*19+17;
// XS Lookup Loop
#pragma omp for schedule(dynamic)
for( i = 0; i < in.lookups; i++ )
{
// Status text
if( INFO && mype == 0 && thread == 0 && i % 1000 == 0 )
printf("\rCalculating XS's... (%.0lf%% completed)",
(i / ( (double)in.lookups / (double) in.nthreads ))
/ (double) in.nthreads * 100.0);
// Randomly pick an energy and material for the particle
#ifdef VERIFICATION
#pragma omp critical
{
p_energy = rn_v();
mat = pick_mat(&seed);
}
#else
p_energy = rn(&seed);
mat = pick_mat(&seed);
#endif
// debugging
//printf("E = %lf mat = %d\n", p_energy, mat);
// This returns the macro_xs_vector, but we're not going
// to do anything with it in this program, so return value
// is written over.
calculate_macro_xs( p_energy, mat, in.n_isotopes,
in.n_gridpoints, num_nucs, concs,
energy_grid, nuclide_grids, mats,
macro_xs_vector );
// Copy results from above function call onto heap
// so that compiler cannot optimize function out
// (only occurs if -flto flag is used)
memcpy(xs, macro_xs_vector, 5*sizeof(double));
// Verification hash calculation
// This method provides a consistent hash accross
// architectures and compilers.
#ifdef VERIFICATION
char line[256];
sprintf(line, "%.5lf %d %.5lf %.5lf %.5lf %.5lf %.5lf",
p_energy, mat,
macro_xs_vector[0],
macro_xs_vector[1],
macro_xs_vector[2],
macro_xs_vector[3],
macro_xs_vector[4]);
unsigned long long vhash_local = hash(line, 10000);
#pragma omp atomic
vhash += vhash_local;
#endif
}
// Prints out thread local PAPI counters
#ifdef PAPI
if( mype == 0 && thread == 0 )
{
printf("\n");
border_print();
center_print("PAPI COUNTER RESULTS", 79);
border_print();
printf("Count \tSmybol \tDescription\n");
}
{
#pragma omp barrier
}
counter_stop(&eventset, num_papi_events);
#endif
}
#ifndef PAPI
if( mype == 0)
{
printf("\n" );
printf("Simulation complete.\n" );
}
#endif
omp_end = omp_get_wtime();
// Print / Save Results and Exit
print_results( in, mype, omp_end-omp_start, nprocs, vhash );
#ifdef BENCHMARK
}
#endif
#ifdef MPI
MPI_Finalize();
#endif
return 0;
}
int main(int argc, char *argv[])
{
Parameters *parameters; // user defined parameters
Geometry *geometry; // homogenous cube geometry
Material *material; // problem material
Bank *source_bank; // array for particle source sites
Tally *tally; // scalar flux tally
double *keff; // effective multiplication factor
double t1, t2; // timers
#ifdef _OPENMP
unsigned long counter = 0; //counter to decide the start pos of master bank copy from sub banks
Bank *g_fission_bank; //global fission bank
#endif
// Get inputs: set parameters to default values, parse parameter file,
// override with any command line inputs, and print parameters
parameters = init_parameters();
parse_parameters(parameters);
read_CLI(argc, argv, parameters);
print_parameters(parameters);
// Set initial RNG seed
set_initial_seed(parameters->seed);
set_stream(STREAM_INIT);
// Create files for writing results to
init_output(parameters);
// Set up geometry
geometry = init_geometry(parameters);
// Set up material
material = init_material(parameters);
// Set up tallies
tally = init_tally(parameters);
// Create source bank and initial source distribution
source_bank = init_source_bank(parameters, geometry);
// Create fission bank
#ifdef _OPENMP
omp_set_num_threads(parameters->n_threads); // Set number of openmp threads
printf("threads num: %d\n", parameters->n_threads);
// Allocate one master fission bank
g_fission_bank = init_bank(2*parameters->n_particles);
#endif
// Set up array for k effective
keff = calloc(parameters->n_active, sizeof(double));
center_print("SIMULATION", 79);
border_print();
printf("%-15s %-15s %-15s\n", "BATCH", "KEFF", "MEAN KEFF");
#ifdef _OPENMP
// Start time
t1 = omp_get_wtime();
run_eigenvalue(counter, g_fission_bank, parameters, geometry, material, source_bank, fission_bank, tally, keff);
// Stop time
t2 = omp_get_wtime();
#endif
printf("Simulation time: %f secs\n", t2-t1);
// Free memory
#ifdef _OPENMP
free_bank(g_fission_bank);
#endif
free(keff);
free_tally(tally);
free_bank(source_bank);
free_material(material);
free(geometry);
free(parameters);
return 0;
}
int main(int argc, char *argv[])
{
Parameters *parameters; // user defined parameters
Geometry *geometry; // homogenous cube geometry
Material *material; // problem material
Bank *source_bank; // array for particle source sites
Bank *fission_bank; // array for particle fission sites
Tally *tally; // scalar flux tally
double *keff; // effective multiplication factor
double t1, t2; // timers
// Get inputs: set parameters to default values, parse parameter file,
// override with any command line inputs, and print parameters
parameters = init_parameters();
parse_parameters(parameters);
read_CLI(argc, argv, parameters);
print_parameters(parameters);
// Set initial RNG seed
set_initial_seed(parameters->seed);
set_stream(STREAM_OTHER);
// Create files for writing results to
init_output(parameters);
// Set up geometry
geometry = init_geometry(parameters);
// Set up material
material = init_material(parameters);
// Set up tallies
tally = init_tally(parameters);
// Create source bank and initial source distribution
source_bank = init_source_bank(parameters, geometry);
// Create fission bank
fission_bank = init_fission_bank(parameters);
// Set up array for k effective
keff = calloc(parameters->n_active, sizeof(double));
center_print("SIMULATION", 79);
border_print();
printf("%-15s %-15s %-15s %-15s\n", "BATCH", "ENTROPY", "KEFF", "MEAN KEFF");
// Start time
t1 = timer();
run_eigenvalue(parameters, geometry, material, source_bank, fission_bank, tally, keff);
// Stop time
t2 = timer();
printf("Simulation time: %f secs\n", t2-t1);
// Free memory
free(keff);
free_tally(tally);
free_bank(fission_bank);
free_bank(source_bank);
free_material(material);
free(geometry);
free(parameters);
return 0;
}
