/*
* === FUNCTION ======================================================================
* Name: process_flags
* Description: processes input flags
* =====================================================================================
*/
int process_flags(int argc, char* argv[])
{
if((argc % 2) == 0)
{
cout << "invalid number of arguments specified.\n";
cout << "usage: " << argv[0] << " <flag> <value> ";
exit(-1);
}
int num_flags = (argc-1)/2;
string* flags = new string[num_flags];
const char** values = new const char*[num_flags];
int j = 0;
for(int i = 1; i+1 < argc; ++i)
{
flags[j] = string(argv[i]);
values[j] = argv[i+1];
++i;
++j;
}
// validate flags
validate_flags(flags, values, num_flags);
// if no flags provided, globals will use default values
initialize_variables(flags, values, num_flags);
delete [] flags;
delete [] values;
return 0;
}
void LBCSolver::solve()
{
if(!valid_init_data_){
std::cerr << "Invalid data, unable to solve...." << std::endl;
return;
}
initialize_variables();
start_timer();
int iter = 0;
optimization_end_ = false;
while (!optimization_end_)
{
iter++;
check_convergence_ = (iter % convergence_check_frequency_ == 0 || iter >= param_.max_iterations);
output_progress_ = (iter % output_frequency_ == 0 );
#pragma omp parallel
{
this->update_x();
this->update_w();
this->update_y();
this->update_dual_variables(iter);
}
}
end_timer();
show_elapsed_time();
}
/********************
* dres_parse_file
********************/
EXPORTED dres_t *
dres_parse_file(char *path)
{
#define FAIL(err) do { status = err; goto fail; } while (0)
dres_t *dres = NULL;
int status, i;
if (path == NULL)
FAIL(EINVAL);
if ((status = lexer_open(path)) != 0)
FAIL(status);
if ((dres = dres_init(NULL)) == NULL)
FAIL(errno);
if ((status = yyparse(dres)) != 0 ||
(status = check_undefined(dres)) != 0 ||
(status = initialize_variables(dres)) != 0 ||
(status = finalize_variables(dres)) != 0)
FAIL(status);
dres->vm.nlocal = dres->ndresvar;
for (i = 0; i < dres->ndresvar; i++)
vm_set_varname(&dres->vm, i, dres->dresvars[i].name);
return dres;
fail:
if (dres != NULL)
dres_exit(dres);
errno = status;
return NULL;
#undef FAIL
}
/*
* Main function
*/
int main(int argc, char** argv)
{
if (argc < 2)
{
std::cout << "specify data file name" << std::endl;
return 0;
}
const char* data_file_name = argv[1];
const unsigned long long full_program_start = current_time_ns();
{
// set far field conditions
{
const double angle_of_attack = double(3.1415926535897931 / 180.0) * double(deg_angle_of_attack);
ff_variable[VAR_DENSITY] = double(1.4);
double ff_pressure = double(1.0);
double ff_speed_of_sound = sqrt(GAMMA*ff_pressure / ff_variable[VAR_DENSITY]);
double ff_speed = double(ff_mach)*ff_speed_of_sound;
cfd_double3 ff_velocity;
ff_velocity.x = ff_speed*double(cos((double)angle_of_attack));
ff_velocity.y = ff_speed*double(sin((double)angle_of_attack));
ff_velocity.z = 0.0;
ff_variable[VAR_MOMENTUM+0] = ff_variable[VAR_DENSITY] * ff_velocity.x;
ff_variable[VAR_MOMENTUM+1] = ff_variable[VAR_DENSITY] * ff_velocity.y;
ff_variable[VAR_MOMENTUM+2] = ff_variable[VAR_DENSITY] * ff_velocity.z;
ff_variable[VAR_DENSITY_ENERGY] = ff_variable[VAR_DENSITY]*(double(0.5)*(ff_speed*ff_speed)) + (ff_pressure / double(GAMMA-1.0));
cfd_double3 ff_momentum;
ff_momentum.x = *(ff_variable+VAR_MOMENTUM+0);
ff_momentum.y = *(ff_variable+VAR_MOMENTUM+1);
ff_momentum.z = *(ff_variable+VAR_MOMENTUM+2);
compute_flux_contribution(ff_variable[VAR_DENSITY], ff_momentum, ff_variable[VAR_DENSITY_ENERGY], ff_pressure, ff_velocity, ff_flux_contribution_momentum_x, ff_flux_contribution_momentum_y, ff_flux_contribution_momentum_z, ff_flux_contribution_density_energy);
}
int nel;
int nelr;
// read in domain geometry
double* areas;
int* elements_surrounding_elements;
double* normals;
{
std::ifstream file(data_file_name);
file >> nel;
nelr = block_length*((nel / block_length )+ std::min(1, nel % block_length));
areas = new double[nelr];
elements_surrounding_elements = new int[nelr*NNB];
normals = new double[NDIM*NNB*nelr];
// read in data
for(int i = 0; i < nel; i++)
{
file >> areas[i];
for(int j = 0; j < NNB; j++)
{
file >> elements_surrounding_elements[i*NNB + j];
if(elements_surrounding_elements[i*NNB+j] < 0) elements_surrounding_elements[i*NNB+j] = -1;
elements_surrounding_elements[i*NNB + j]--; //it's coming in with Fortran numbering
for(int k = 0; k < NDIM; k++)
{
file >> normals[(i*NNB + j)*NDIM + k];
normals[(i*NNB + j)*NDIM + k] = -normals[(i*NNB + j)*NDIM + k];
}
}
}
// fill in remaining data
int last = nel-1;
for(int i = nel; i < nelr; i++)
{
areas[i] = areas[last];
for(int j = 0; j < NNB; j++)
{
// duplicate the last element
elements_surrounding_elements[i*NNB + j] = elements_surrounding_elements[last*NNB + j];
for(int k = 0; k < NDIM; k++) normals[(i*NNB + j)*NDIM + k] = normals[(last*NNB + j)*NDIM + k];
}
}
}
// Create arrays and set initial conditions
double* variables = alloc<double>(nelr*NVAR);
initialize_variables(nelr, variables);
double* old_variables = alloc<double>(nelr*NVAR);
double* fluxes = alloc<double>(nelr*NVAR);
double* step_factors = alloc<double>(nelr);
// these need to be computed the first time in order to compute time step
std::cout << "Starting..." << std::endl;
// Begin iterations
for(int i = 0; i < iterations; i++)
{
copy(old_variables, variables, nelr*NVAR);
// for the first iteration we compute the time step
compute_step_factor(nelr, variables, areas, step_factors);
for(int j = 0; j < RK; j++)
{
compute_flux(nelr, elements_surrounding_elements, normals, variables, fluxes);
time_step(j, nelr, old_variables, variables, step_factors, fluxes);
}
}
std::cout << "Saving solution..." << std::endl;
dump(variables, nel, nelr);
std::cout << "Saved solution..." << std::endl;
std::cout << "Cleaning up..." << std::endl;
dealloc<double>(areas);
dealloc<int>(elements_surrounding_elements);
dealloc<double>(normals);
dealloc<double>(variables);
dealloc<double>(old_variables);
dealloc<double>(fluxes);
dealloc<double>(step_factors);
} ;
const unsigned long long full_program_end = current_time_ns();
printf("full_program %llu ns\n", full_program_end - full_program_start);
std::cout << "Done..." << std::endl;
return 0;
}
XeTeX::XeTeX(int dummy)
{
create_work_area ();
place_ptx2pdf_macros ();
initialize_variables ();
}
int main(int argc, char** argv) {
if ((argc>4)||(argc<3)) {
fprintf(stderr,"\nERROR: Incorrect usage. Aborting...\n\n");
fprintf(stderr,"\nExample usage:\n\n");
fprintf(stderr,"> %s input.dat table.bin 0\n\n",argv[0]);
fprintf(stderr," 1st argument = file containing matrix size, type, and margins, formatted as e.g.\n");
fprintf(stderr," 13 17 0\n");
fprintf(stderr," 14 13 14 10 12 2 10 1 10 11 6 2 17\n");
fprintf(stderr," 4 4 11 10 10 8 9 10 8 9 3 10 4 7 9 3 3\n");
fprintf(stderr," 2nd argument = filename to use for saving binary data\n");
fprintf(stderr," 3rd argument = 0: normal output (default)\n");
fprintf(stderr," 1: suppress all output except the number of matrices\n");
fprintf(stderr,"\n\n");
exit(1);
}
if (argc==4) sscanf(argv[3],"%i",&quiet_mode);
else quiet_mode = 0; // default is normal output (quiet mode off)
char* input_filename = argv[1];
char* table_filename = argv[2];
// Read p (row sums), q (column sums), and matrix_type from input file
int m,n,matrix_type;
FILE* file = fopen(input_filename, "r");
fscanf(file,"%i %i %i",&m,&n,&matrix_type);
int* p; allocate_vector(int,p,m);
int* q; allocate_vector(int,q,n);
for (int i = 0; i<m; i++) fscanf(file,"%i",&p[i]);
for (int i = 0; i<n; i++) fscanf(file,"%i",&q[i]);
fclose(file);
// Echo what we read in
print("\n");
print("Input file: %s\n",input_filename);
print("Table file: %s\n",table_filename);
if (matrix_type==0) { print("Binary matrices\n"); }
else if (matrix_type==1) { print("Nonnegative integer matrices\n"); }
else { error("Please use a matrix type of either 0 (binary) or 1 (nonnegative integer)."); }
print("m = %d\n",m);
print("n = %d\n",n);
print("p = "); if (!quiet_mode) print_vector("%d ",p,m);
print("q = "); if (!quiet_mode) print_vector("%d ",q,n);
print("====================================\n");
// Make sure p and q are valid.
validate_margins(p,q,m,n);
// Initialize counting variables
data_t* v = initialize_variables(p,q,m,n,"");
print("Counting...\n");
// Start the clock (to time how long it takes to run)
clock_t start_time = clock();
// Count the number of matrices
bigint* result = count(v,matrix_type);
// Stop the clock
clock_t end_time = clock();
double elapsed_time = ((double)(end_time - start_time))/CLOCKS_PER_SEC;
// Print results
print("\n");
print("Elapsed CPU time = %f seconds\n",elapsed_time);
print("Number of matrices = ");
gmp_printf("%Zd",*result); // in quiet mode, this is the only output
// Save the hash table to file
print("\n\n");
print("Saving lookup table to file...\n");
hash_table_save(v->table, table_filename);
return 0;
}
/*===================================================
= Programa principal =
===================================================*/
int main()
{
char* argumentos[MAX_ARGS]; // Argumentos dos executáveis
char buffer[BUFFER_SIZE]; // Buffer que guarda os dados da leitura do pipe
int input; // Descritor de ficheiro para o pipe que recebe input dos terminais
/**
* Inicializar as variáveis e estruturas da par-shell
*/
initialize_variables();
/**
* Atualizar as informações do log da par-shell
*/
update_log_values();
/**
* Catch do signal ctrl+c
*/
if(signal(SIGINT, sig_handler) == SIG_ERR){
perror("Erro no signal: ");
}
while(1){
/**
* Abrir o pipe que recebe input dos terminais
*/
if((inputdesc = open(inputpipe,O_RDONLY)) < 0){
perror("Erro no open do pipe: ");
exit(EXIT_FAILURE);
}
/**
* Ler informações do pipe
*/
if((input = read(inputdesc,buffer,BUFFER_SIZE)) <= 0){
// Fechar o pipe apos a leitura
close(inputdesc);
// Não lê nada mas tambem não dá erro, continua o ciclo (e.g press enter)
if(input == 0){
continue;
}
perror("Erro no read do input");
}
else{
buffer[input] = '\0';
if(strcmp(buffer,"exit-global") == 0) {
/**
* Sair da par-shell
*/
exit_par_shell();
}
if (sscanf(buffer, "/tmp/terminal-%d", &pidterminal) > 0) {
/**
* Registar um terminal especifico e o seu pipe
*/
printf("Terminal %d criado\n",pidterminal);
if(fflush(stdout) < 0)
perror("Erro no fflush de escrita no par-shell na criação de terminal: ");
// Inserir pid do terminal na lista de terminais
insert_new_terminal(lista_terminais,pidterminal);
continue;
}
if(sscanf(buffer,"stats %d",&pidterminal) > 0){
/**
* Enviar o número de processos filhos em execução e
* o tempo total de execução da par-shell para o terminal
*/
// Construir strings de output e do nome do pipe do terminal
sprintf(output,"Número de filhos em execução: %d \nTempo total: %g",nfilhos,tempo_total_execucao);
sprintf(terminalpipe,"/tmp/terminal-%d",pidterminal);
// Abrir o pipe do terminal para escrita
if((fd_write = open(terminalpipe, O_WRONLY)) < 0){
perror("Erro no open do stats da par-shell: ");
exit(EXIT_FAILURE);
}
// Escrever no pipe do terminal
if(write(fd_write,output,strlen(output)) < 0){
perror("Erro no write do stats da par-shell: ");
}
// Fechar o pipe do terminal
if(close(fd_write) < 0){
perror("Erro no close do stats da par-shell: ");
}
strcpy(output,"\0");
continue;
}
else {
int i; // Inteiro temporário usado no ciclo de processamento dos argumentos
int pid; // Pid do processo filho criado com fork
/**
* Processar todos os argumentos que poderá receber
*/
argumentos[0] = strtok(buffer," ");
for(i = 1; i < MAX_ARGS; i++){
argumentos[i] = strtok(NULL," ");
}
/**
* Confirmar se podem ser criados filhos
*/
mutex_lock();
while (! (nfilhos < MAXPAR))
if(pthread_cond_wait(&podeCriarFilhos,&mutex) != 0){
perror("Erro no pthread_cond_wait na par-shell: ");
}
mutex_unlock();
/**
* Criar processo filho usando fork
*/
pid = fork();
// Registar tempo de inicio do processo filho
time_t starttime = time(NULL);
if (pid < 0) {
perror("Erro no fork: ");
continue;
}
/**
* Código do processo filho
*/
if (pid == 0) {
// Redirecionar o output do processo filho
redirect_stdout();
// Evitar que o ctrl+c se propague para o processo filho -> signal é ignorado
signal(SIGINT,SIG_IGN);
// Trocar código do processo filho pelo do executável
if(execv(argumentos[0], argumentos) < 0){
perror("Erro no execv:");
exit(EXIT_FAILURE);
}
}
/**
* Código do processo pai
*/
mutex_lock();
nfilhos++;
if(pthread_cond_signal(&podeMonitorizar) != 0){
perror("Erro no pthread_cond_signal na par-shell: ");
}
insert_new_process(list,pid,starttime);
mutex_unlock();
}
}
}
return 0;
}
