#include "smpi_mpi_dt_private.h"
#include "limits.h"
#include "simix/smx_private.h"
+#include "xbt/replay.h"
#include "colls/colls.h"
+extern int is_replay_active ;
+
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_comm, smpi,
"Logging specific to SMPI (comm)");
void smpi_comm_init_smp(MPI_Comm comm){
int leader = -1;
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(_xbt_replay_is_active()){
+ replaying = 1;
+ is_replay_active = 0 ;
+ }
if(smpi_privatize_global_variables){ //we need to switch here, as the called function may silently touch global variables
- 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
+ switch_data_segment(smpi_process_index());
+ }
+
if(!comm->leaders_map){
comm->leaders_map= leaders_map;
}else{
}
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
+ 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));
comm->is_blocked=global_blocked;
}
xbt_free(leader_list);
+
+ if(replaying==1)
+ is_replay_active = 1;
}