#include "simix/smx_private.h"
#include "colls/colls.h"
+
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_comm, smpi,
"Logging specific to SMPI (comm)");
}
void smpi_comm_set_leaders_comm(MPI_Comm comm, MPI_Comm leaders){
+ if (comm == MPI_COMM_UNINITIALIZED)
+ comm = smpi_process_comm_world();
comm->leaders_comm=leaders;
}
}
int* smpi_comm_get_non_uniform_map(MPI_Comm comm){
+ if (comm == MPI_COMM_UNINITIALIZED)
+ comm = smpi_process_comm_world();
return comm->non_uniform_map;
}
int* smpi_comm_get_leaders_map(MPI_Comm comm){
+ if (comm == MPI_COMM_UNINITIALIZED)
+ comm = smpi_process_comm_world();
return comm->leaders_map;
}
MPI_Comm smpi_comm_get_leaders_comm(MPI_Comm comm){
+ if (comm == MPI_COMM_UNINITIALIZED)
+ comm = smpi_process_comm_world();
return comm->leaders_comm;
}
MPI_Comm smpi_comm_get_intra_comm(MPI_Comm comm){
- if(comm==MPI_COMM_WORLD) return smpi_process_get_comm_intra();
+ if (comm == MPI_COMM_UNINITIALIZED || comm==MPI_COMM_WORLD)
+ return smpi_process_get_comm_intra();
else return comm->intra_comm;
}
int smpi_comm_is_uniform(MPI_Comm comm){
+ if (comm == MPI_COMM_UNINITIALIZED)
+ comm = smpi_process_comm_world();
return comm->is_uniform;
}
int smpi_comm_is_blocked(MPI_Comm comm){
+ if (comm == MPI_COMM_UNINITIALIZED)
+ comm = smpi_process_comm_world();
return comm->is_blocked;
}
void smpi_comm_init_smp(MPI_Comm comm){
int leader = -1;
+
+ if (comm == MPI_COMM_UNINITIALIZED)
+ comm = smpi_process_comm_world();
+
int comm_size =smpi_comm_size(comm);
+
+ // If we are in replay - perform an ugly hack
+ // say to SimGrid that we are not in replay for a while, because we need
+ // the buffers to be copied for the following calls
+ int replaying = 0; //cache data to set it back again after
+ if(smpi_process_get_replaying()){
+ replaying=1;
+ smpi_process_set_replaying(0);
+ }
if(smpi_privatize_global_variables){ //we need to switch here, as the called function may silently touch global variables
- XBT_VERB("Applying operation, switch to the right data frame ");
- switch_data_segment(smpi_process_index());
+ smpi_switch_data_segment(smpi_process_index());
}
//identify neighbours in comm
//get the indexes of all processes sharing the same simix host
// smpi_process_set_comm_intra(MPI_COMM_SELF);
// return;
// }
- XBT_DEBUG("number of processes deployed on my node : %d", intra_comm_size);
+
int i =0;
int min_index=INT_MAX;//the minimum index will be the leader
i++;
}
}
-
+ XBT_DEBUG("number of processes deployed on my node : %d", intra_comm_size);
MPI_Group group_intra = smpi_group_new(intra_comm_size);
i=0;
process = NULL;
smpi_coll_tuned_allgather_mpich(&leader, 1, MPI_INT , leaders_map, 1, MPI_INT, comm);
+ if(smpi_privatize_global_variables){ //we need to switch here, as the called function may silently touch global variables
+ smpi_switch_data_segment(smpi_process_index());
+ }
+
if(!comm->leaders_map){
comm->leaders_map= leaders_map;
}else{
MPI_Comm leader_comm = MPI_COMM_NULL;
- if(comm!=MPI_COMM_WORLD){
+ if(MPI_COMM_WORLD!=MPI_COMM_UNINITIALIZED && comm!=MPI_COMM_WORLD){
//create leader_communicator
for (i=0; i< leader_group_size;i++)
smpi_group_set_mapping(leaders_group, leader_list[i], i);
// Are the nodes uniform ? = same number of process/node
int my_local_size=smpi_comm_size(comm_intra);
if(smpi_comm_rank(comm_intra)==0) {
- int* non_uniform_map = xbt_malloc(sizeof(int)*leader_group_size);
+ int* non_uniform_map = xbt_malloc0(sizeof(int)*leader_group_size);
smpi_coll_tuned_allgather_mpich(&my_local_size, 1, MPI_INT,
non_uniform_map, 1, MPI_INT, leader_comm);
for(i=0; i < leader_group_size; i++) {
}
comm->is_uniform=is_uniform;
}
- mpi_coll_bcast_fun(&(comm->is_uniform),1, MPI_INT, 0, comm_intra );
-
+ smpi_coll_tuned_bcast_mpich(&(comm->is_uniform),1, MPI_INT, 0, comm_intra );
+ if(smpi_privatize_global_variables){ //we need to switch here, as the called function may silently touch global variables
+ smpi_switch_data_segment(smpi_process_index());
+ }
// Are the ranks blocked ? = allocated contiguously on the SMP nodes
int is_blocked=1;
int prev=smpi_group_rank(smpi_comm_group(comm), smpi_group_index(smpi_comm_group(comm_intra), 0));
}
int global_blocked;
- mpi_coll_allreduce_fun(&is_blocked, &(global_blocked), 1,
+ smpi_mpi_allreduce(&is_blocked, &(global_blocked), 1,
MPI_INT, MPI_LAND, comm);
- if(comm==MPI_COMM_WORLD){
+ if(MPI_COMM_WORLD==SMPI_UNINITIALIZED || comm==MPI_COMM_WORLD){
if(smpi_comm_rank(comm)==0){
comm->is_blocked=global_blocked;
}
comm->is_blocked=global_blocked;
}
xbt_free(leader_list);
+
+ if(replaying==1)
+ smpi_process_set_replaying(1);
}