int main ( int argc, char *argv[] )
{
int myid,numprocs,n,nbsols,mysolnum;
MPI_Status status;
adainit();
MPI_Init(&argc,&argv);
MPI_Comm_size(MPI_COMM_WORLD,&numprocs);
MPI_Comm_rank(MPI_COMM_WORLD,&myid);
dimension_broadcast(myid,&n);
monomials_broadcast(myid,n);
copy_broadcast(myid);
start_system_broadcast(myid,n,&nbsols);
MPI_Bcast(&nbsols,1,MPI_INT,0,MPI_COMM_WORLD);
solutions_distribute(myid,nbsols,n,numprocs,&mysolnum);
// if(myid == 1) print_homotopy();
MPI_Finalize();
adafinal();
return 0;
}
int monodromy_breakup ( int myid, int n, int dim, int deg, int nbloops,
int numprocs, double *trackwtime )
{
int mysolnum,i,done,fail;
if(v>0) printf("Node %d knows n = %d, #loops = %d.\n",myid,n,nbloops);
monomials_broadcast(myid,n);
MPI_Bcast(°,1,MPI_INT,0,MPI_COMM_WORLD);
if(v>0) printf("Node %d went through bcast of degree %d.\n",myid,deg);
solutions_distribute(myid,deg,n,numprocs,&mysolnum);
MPI_Bcast(&dim,1,MPI_INT,0,MPI_COMM_WORLD);
fail = initialize_standard_sampler(dim);
if(myid == 0)
{
fail = validate_solutions(); /* sanity check */
fail = initialize_standard_monodromy(nbloops,deg,dim);
/* initialize traces */
if(v>1) print_solutions(myid);
fail = store_standard_solutions();
}
for(i=1; i<=2; i++)
{
if((v>0)&&(myid == 0)) printf("slice %d for linear trace...\n",i);
trace_slice_broadcast(myid,i);
gamma_broadcast(myid,n);
f_track_paths(myid,deg,n,numprocs,mysolnum,trackwtime);
if(myid == 0)
{
fail = store_standard_solutions();
fail = restore_standard_solutions();
}
solutions_distribute(myid,deg,n,numprocs,&mysolnum);
if(myid == 0) f_swap_slices(myid);
}
slices_broadcast(myid,dim,n);
for(i=0; i<nbloops; i++)
{
if((v>0)&&(myid == 0)) printf("Starting loop #\%d...\n",i);
gamma_broadcast(myid,n);
f_track_paths(myid,deg,n,numprocs,mysolnum,trackwtime);
if(myid != 0) f_swap_slices(myid);
if(myid == 0)
{
if(v>1) print_solutions(myid);
solcon_clear_standard_solutions();
}
gamma_broadcast(myid,n);
f_track_paths(myid,deg,n,numprocs,mysolnum,trackwtime);
if(myid == 0)
{
if(v>1) print_solutions(myid);
fail = store_standard_solutions();
fail = standard_monodromy_permutation(deg,&done);
solcon_clear_standard_solutions();
}
MPI_Bcast(&done,1,MPI_INT,0,MPI_COMM_WORLD);
MPI_Barrier(MPI_COMM_WORLD); /* every node must know if done */
if(done == 1)
{
if (v>0) printf("Node %d leaves the loop at step %d.\n", myid,i+1);
if(myid == 0) printf("Executed %d monodromy loops.\n", i+1);
return 0;
}
else
{
if(myid != 0) f_swap_slices(myid);
slices_broadcast(myid,dim,n); /* new slices */
if(myid == 0) fail = restore_standard_solutions();
MPI_Bcast(°,1,MPI_INT,0,MPI_COMM_WORLD);
solutions_distribute(myid,deg,n,numprocs,&mysolnum);
}
}
if(myid == 0) printf("Executed %d monodromy loops.\n", i+1);
return 1;
}
int standard_run ( int myid, int nbrp, int nbc, char* outfile, int verbose )
{
int fail,dim,nbsols,mysolnum,len,*nbpaths;
double startwtime,endwtime,wtime,*time;
startwtime = MPI_Wtime();
if(myid == 0)
{
time = (double*)calloc(nbrp,sizeof(double));
nbpaths = (int*)calloc(nbrp,sizeof(int));
fail = read_target_system_without_solutions();
fail = copy_target_system_to_container();
fail = syscon_number_of_standard_polynomials(&dim);
fail = write_standard_target_system(); // writes to file
}
standard_dimensions_broadcast(myid,&dim,&dim);
if(verbose > 0) printf("Process %d has dimension %d.\n",myid,dim);
monomials_broadcast(myid,dim); // broadcast target system
if(myid != 0) fail = copy_container_to_target_system();
if(verbose > 0)
if(myid == 1) fail = write_standard_target_system();
if(myid == 0)
{
fail = read_standard_start_system();
fail = copy_start_system_to_container();
fail = write_standard_start_system(); // writes to file
fail = write_start_solutions(); // writes solutions to file
fail = copy_start_solutions_to_container();
fail = solcon_number_of_standard_solutions(&nbsols);
if(verbose>0) printf("Read %d start solutions.\n",nbsols);
}
else
fail = syscon_initialize_number_of_standard_polynomials(dim);
monomials_broadcast(myid,dim); // broadcast start system
if(myid != 0) fail = copy_container_to_start_system();
if(verbose > 0)
if(myid == 1) fail = write_standard_start_system();
parameters_broadcast(myid,nbrp,verbose);
if(myid == 0) verbose = prompt_for_verbose();
MPI_Barrier(MPI_COMM_WORLD);
MPI_Bcast(&verbose,1,MPI_INT,0,MPI_COMM_WORLD);
MPI_Bcast(&nbsols,1,MPI_INT,0,MPI_COMM_WORLD);
solutions_distribute(myid,nbsols,dim,nbrp,&mysolnum);
fail = solcon_number_of_standard_solutions(&len);
if(verbose > 0) printf("Node %d has %d solutions.\n",myid,len);
if(myid > 0)
{
fail = copy_container_to_start_solutions();
fail = standard_track_paths(myid,nbrp,nbc,outfile,verbose);
}
MPI_Barrier(MPI_COMM_WORLD);
solutions_collect(myid,nbsols,dim,nbrp,mysolnum);
if(myid == 0)
{
fail = copy_container_to_target_solutions();
fail = write_target_solutions();
}
endwtime = MPI_Wtime();
wtime = endwtime-startwtime;
MPI_Gather(&wtime,1,MPI_DOUBLE,time,1,MPI_DOUBLE,0,MPI_COMM_WORLD);
MPI_Gather(&mysolnum,1,MPI_INT,nbpaths,1,MPI_INT,0,MPI_COMM_WORLD);
if(myid == 0)
{
nbpaths[0] = nbsols;
write_time_and_paths_to_defined_output_file(nbrp,time,nbpaths);
free(time); free(nbpaths);
}
return 0;
}
