int main(int argc, char **argv)
{
int i,nx = 50, ny = 50,nz = 50, batch = 0, echo = 0;
char *env = NULL;
simulation_data sim;
#ifdef PARALLEL
/* Initialize MPI */
MPI_Init(&argc, &argv);
#endif
/* Check for command line arguments. */
for(i = 1; i < argc; ++i)
{
if((i+1) < argc)
{
if(strcmp(argv[i], "-nx") == 0)
{
sscanf(argv[i+1], "%d", &nx);
i++;
}
else if(strcmp(argv[i], "-ny") == 0)
{
sscanf(argv[i+1], "%d", &ny);
i++;
}
else if(strcmp(argv[i], "-nz") == 0)
{
sscanf(argv[i+1], "%d", &nz);
i++;
}
else if(strcmp(argv[i], "-dir") == 0)
{
/* Specify the path to VisIt installation. */
VisItSetDirectory(argv[i+1]);
i++;
}
}
else if(strcmp(argv[i], "-batch") == 0)
{
batch = 1;
}
else if(strcmp(argv[i], "-echo") == 0)
{
echo = 1;
}
}
/* Initialize environment variables. */
SimulationArguments(argc, argv);
simulation_data_ctor(&sim, nx, ny, nz);
sim.echo = echo;
#ifdef PARALLEL
/* Create a new communicator. */
if (MPI_Comm_dup(MPI_COMM_WORLD, &sim.par_comm) != MPI_SUCCESS)
sim.par_comm = MPI_COMM_WORLD;
MPI_Comm_rank (sim.par_comm, &sim.par_rank);
MPI_Comm_size (sim.par_comm, &sim.par_size);
/* Install callback functions for global communication. */
VisItSetBroadcastIntFunction2(SimBroadcastInt, (void*)&sim);
VisItSetBroadcastStringFunction2(SimBroadcastString, (void*)&sim);
/* Tell libsim whether the simulation is parallel. */
VisItSetParallel(sim.par_size > 1);
VisItSetParallelRank(sim.par_rank);
/* Tell libsim which communicator to use. You must pass the address of
* an MPI_Comm object.
*/
VisItSetMPICommunicator((void *)&sim.par_comm);
#endif
/* Only read the environment on rank 0. This could happen before MPI_Init if
* we are using an MPI that does not like to let us spawn processes but we
* would not know our processor rank.
*/
if(sim.par_rank == 0)
env = VisItGetEnvironment();
/* Pass the environment to all other processors collectively. */
VisItSetupEnvironment2(env);
if(env != NULL)
free(env);
/* Call the main loop. */
if(batch)
mainloop_batch(&sim);
else
{
if(sim.par_rank == 0)
{
/* Write out .sim file that VisIt uses to connect. */
VisItInitializeSocketAndDumpSimFile(
#ifdef PARALLEL
"zerocopy_par",
#else
"zerocopy",
#endif
"Demonstrates VariableData setArrayData functions for zero copy",
"/path/to/where/sim/was/started",
NULL, NULL, SimulationFilename());
}
mainloop_interactive(&sim);
}
if(VisItIsConnected())
VisItDisconnect();
simulation_data_dtor(&sim);
#ifdef PARALLEL
MPI_Finalize();
#endif
return 0;
}
int main(int argc, char **argv)
{
char *env = NULL;
int i = 0;
simulation_data sim;
simulation_data_ctor(&sim);
#ifdef PARALLEL
/* Initialize MPI */
MPI_Init(&argc, &argv);
/* Create a new communicator. */
if (MPI_Comm_dup(MPI_COMM_WORLD, &sim.par_comm) != MPI_SUCCESS)
sim.par_comm = MPI_COMM_WORLD;
MPI_Comm_rank (sim.par_comm, &sim.par_rank);
MPI_Comm_size (sim.par_comm, &sim.par_size);
#endif
/* Initialize environment variables. */
SimulationArguments(argc, argv);
#ifdef PARALLEL
/* Install callback functions for global communication. */
VisItSetBroadcastIntFunction2(visit_broadcast_int_callback, (void*)&sim);
VisItSetBroadcastStringFunction2(visit_broadcast_string_callback, (void*)&sim);
/* Tell libsim whether the simulation is parallel. */
VisItSetParallel(sim.par_size > 1);
VisItSetParallelRank(sim.par_rank);
/* Tell libsim which communicator to use. You must pass the address of
* an MPI_Comm object.
*/
VisItSetMPICommunicator((void *)&sim.par_comm);
#endif
/* Only read the environment on rank 0. This could happen before MPI_Init if
* we are using an MPI that does not like to let us spawn processes but we
* would not know our processor rank.
*/
if(sim.par_rank == 0)
env = VisItGetEnvironment();
/* Pass the environment to all other processors collectively. */
VisItSetupEnvironment2(env);
if(env != NULL)
free(env);
for(i = 1; i < argc; ++i)
{
if(strcmp(argv[i], "-echo") == 0)
sim.echo = 1;
}
/* Write out .sim file that VisIt uses to connect. Only do it
* on processor 0.
*/
/* CHANGE 3 */
if(sim.par_rank == 0)
{
/* Write out .sim file that VisIt uses to connect. */
VisItInitializeSocketAndDumpSimFile(
#ifdef PARALLEL
"ucdcurve_par",
#else
"ucdcurve",
#endif
"Demonstrates 1D unstructured mesh",
"/path/to/where/sim/was/started",
NULL, NULL, SimulationFilename());
}
/* Read input problem setup, geometry, data.*/
read_input_deck();
/* Call the main loop. */
mainloop(&sim);
simulation_data_dtor(&sim);
#ifdef PARALLEL
MPI_Finalize();
#endif
return 0;
}
int main(int argc, char **argv)
{
char *env = NULL;
simulation_data sim;
simulation_data_ctor(&sim);
sim.runMode = SIM_STOPPED;
int r, c, ndims=2, dims[2]={8,8}, periods[2]={0,0};
int xdivs=2, ydivs=2, zdivs=1;
double before, after, *mem;
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &sim.par_rank);
MPI_Comm_size(MPI_COMM_WORLD, &sim.par_size);
if(!sim.par_rank)
get_procmem(&before);
#ifdef VISIT_INSITU
SimulationArguments(argc, argv);
#endif
#define OPTS 1
#ifdef OPTS
if(!sim.par_rank)
{
while(1)
{
static struct option long_options[] =
{
{"xdivs", required_argument, 0, 'x'},
{"ydivs", required_argument, 0, 'y'},
{"blocksize", required_argument, 0, 'b'},
{"timesteps", required_argument, 0, 't'},
{"file", required_argument, 0, 'f'},
{0, 0, 0, 0}
};
/* getopt_long stores the option index here. */
int option_index = 0;
c = getopt_long (argc, argv, "x:y:b:t:f:",
long_options, &option_index);
/* Detect the end of the options. */
if (c == -1)
break;
switch (c)
{
case 0:
/* If this option set a flag, do nothing else now. */
if (long_options[option_index].flag != 0)
break;
printf ("option %s", long_options[option_index].name);
if (optarg)
printf (" with arg %s", optarg);
printf ("\n");
break;
case 'x':
//printf ("option -x with value `%s'\n", optarg);
dims[0] = atoi(optarg);
break;
case 'y':
//printf ("option -y with value `%s'\n", optarg);
dims[1] = atoi(optarg);
break;
case 'b':
//printf ("option -b with value `%s'\n", optarg);
BlockSize = atoi(optarg);
break;
case 't':
//printf ("option -t with value `%s'\n", optarg);
NUMBER_OF_ITERATIONS = atoi(optarg);
break;
case 'f':
//printf ("option -f with value `%s'\n", optarg);
strcpy(sim.filename, optarg);
break;
case '?':
/* getopt_long already printed an error message. */
break;
default:
abort ();
}
}
}
#endif
MPI_Bcast(dims, 2, MPI_INT, 0, MPI_COMM_WORLD);
MPI_Bcast(&BlockSize, 1, MPI_INT, 0, MPI_COMM_WORLD);
MPI_Bcast(&NUMBER_OF_ITERATIONS, 1, MPI_INT, 0, MPI_COMM_WORLD);
// broadcast name, even if it was not set
MPI_Bcast(sim.filename, 256, MPI_CHAR, 0, MPI_COMM_WORLD);
if(sim.par_size != dims[0]*dims[1])
{
if(sim.par_rank == 0)
fprintf(stderr,"The cartesian topology requested (%d nodes) does not allow to map all tasks. Resubmit\n", sim.par_size);
MPI_Finalize();
exit(1);
}
MPI_Cart_create(MPI_COMM_WORLD, ndims, dims, periods, 1, &sim.comm_cart);
MPI_Cart_coords(sim.comm_cart, sim.par_rank, 2, sim.coords);
//sim.comm_cart = MPI_COMM_WORLD;
sim.cart_dims[0] = dims[0];
sim.cart_dims[1] = dims[1];
/* Adjust the partitioning */
sim.grid.Ncolumns = BlockSize; //LONGITUDE_SIZE; /* assume they divide evenly */
sim.global_dims[0] = BlockSize * dims[0];
sim.grid.Nrows = BlockSize; //LATITUDE_SIZE; /* assume they divide evenly */
sim.global_dims[1] = BlockSize * dims[1];
sim.global_dims[2] = BlockSize; //LEVELS_SIZE;
sim.grid.Nlevels = BlockSize;
//fprintf(stderr,"p=[%d], coords[%dx%d], array[%d*%d*%d] global[%d*%d*%d]\n", sim.par_rank, sim.coords[0], sim.coords[1], sim.grid.Ncolumns, sim.grid.Nrows, sim.grid.Nlevels, sim.global_dims[0], sim.global_dims[1], sim.global_dims[2]);
#ifdef VISIT_INSITU
FILE *fp;
if(sim.par_rank == 0){
env = VisItGetEnvironment();
//fp = fopen("/scratch/rosa/jfavre/foo.txt", "w");
//fprintf(fp, "%s\n", env);
}
/* Pass the environment to all other processors collectively. */
VisItSetupEnvironment2(env);
if(env != NULL)
free(env);
/* Install callback functions for global communication. */
VisItSetBroadcastIntFunction2(visit_broadcast_int_callback, (void*)&sim);
VisItSetBroadcastStringFunction2(visit_broadcast_string_callback, (void*)&sim);
/* Tell whether the simulation is parallel. */
VisItSetParallel(sim.par_size > 1);
VisItSetParallelRank(sim.par_rank);
if(sim.par_rank == 0)
{
//fprintf(fp, "\n--reached before callbacks\n", env);
//fclose(fp);
}
if(sim.par_rank == 0)
{
VisItInitializeSocketAndDumpSimFile("Cosmo",
"Code YYY coupled with VisIt's libsim",
"/path/to/where/sim/was/started",
NULL, NULL, "/users/jfavre/.visit/simulations/rosa.sim2");
}
#endif
grid_data_allocate(&sim);
mpi_elapsed = MPI_Wtime();
mainloop(&sim);
mpi_elapsed = MPI_Wtime() - mpi_elapsed;
grid_data_dtor(&sim.grid);
if(!sim.par_rank){
get_procmem(&after);
fprintf(stderr, "Testing get_procmem... %f %f %f\n",
before, after, after-before);
}
MPI_Barrier(sim.comm_cart);
if(sim.par_rank == 0)
{
printf("written grids of %d,%d,%d\n", BlockSize, BlockSize, BlockSize);
printf("written %d iterations\n", NUMBER_OF_ITERATIONS);
printf("MPI Elapsed time: %f sec\n", mpi_elapsed);
printf("average %f Gbytes/sec\n", (BlockSize*BlockSize*BlockSize*4.0*sim.par_size*NUMBER_OF_ITERATIONS) / (1024*1024*1024*mpi_elapsed));
}
MPI_Finalize();
return 0;
}
