X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7c14726fd0862a988b835b24e85c6c5b83b81900..8a4ded6ee6330d304e1d3f69100eb7ec55c5fd9c:/src/smpi/smpi_comm.c

diff --git a/src/smpi/smpi_comm.c b/src/smpi/smpi_comm.c
index d71c475df1..d108f6d5f9 100644
--- a/src/smpi/smpi_comm.c
+++ b/src/smpi/smpi_comm.c
@@ -7,11 +7,15 @@
 #include <stdlib.h>
 
 #include "private.h"
+#include "xbt/dict.h"
 #include "smpi_mpi_dt_private.h"
 #include "limits.h"
 #include "simix/smx_private.h"
 #include "colls/colls.h"
+#include "xbt/ex.h"
 
+
+extern xbt_dict_t smpi_keyvals;
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_comm, smpi,
                                 "Logging specific to SMPI (comm)");
 
@@ -33,6 +37,7 @@ typedef struct s_smpi_mpi_communicator {
   int is_uniform;
   int* non_uniform_map; //set if smp nodes have a different number of processes allocated
   int is_blocked;// are ranks allocated on the same smp node contiguous ?
+  xbt_dict_t attributes;
 } s_smpi_mpi_communicator_t;
 
 static int smpi_compare_rankmap(const void *a, const void *b)
@@ -71,6 +76,7 @@ MPI_Comm smpi_comm_new(MPI_Group group, MPI_Topology topo)
   comm->non_uniform_map = NULL;
   comm->leaders_map = NULL;
   comm->is_blocked=0;
+  comm->attributes=NULL;
   return comm;
 }
 
@@ -83,6 +89,32 @@ void smpi_comm_destroy(MPI_Comm comm)
   smpi_comm_unuse(comm);
 }
 
+MPI_Comm smpi_comm_dup(MPI_Comm 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());
+   }
+  MPI_Comm newcomm = smpi_comm_new(smpi_comm_group(comm), smpi_comm_topo(comm));
+
+  if(comm->attributes !=NULL){
+      newcomm->attributes=xbt_dict_new();
+      xbt_dict_cursor_t cursor = NULL;
+      int *key;
+      int flag;
+      void* value_in;
+      void* value_out;
+      xbt_dict_foreach(comm->attributes, cursor, key, value_in){
+        smpi_key_elem elem = xbt_dict_get_or_null(smpi_keyvals, (const char*)key);
+        if(elem && elem->copy_fn!=MPI_NULL_COPY_FN){
+          elem->copy_fn(comm, *key, NULL, value_in, &value_out, &flag );
+          if(flag)
+            xbt_dict_set(newcomm->attributes, (const char*)key,value_out, NULL);
+        }
+      }
+    }
+  return newcomm;
+}
+
+
 MPI_Group smpi_comm_group(MPI_Comm comm)
 {
   if (comm == MPI_COMM_UNINITIALIZED)
@@ -125,6 +157,8 @@ void smpi_comm_get_name (MPI_Comm comm, char* name, int* len)
 }
 
 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;
 }
 
@@ -133,27 +167,38 @@ void smpi_comm_set_intra_comm(MPI_Comm comm, MPI_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;
 }
 
@@ -259,6 +304,17 @@ void smpi_comm_unuse(MPI_Comm comm){
       xbt_free(comm->non_uniform_map);
     if(comm->leaders_map !=NULL)
       xbt_free(comm->leaders_map);
+    if(comm->attributes !=NULL){
+      xbt_dict_cursor_t cursor = NULL;
+      char *key;
+      smpi_key_elem elem;
+      void * value;
+      int flag;
+      xbt_dict_foreach(comm->attributes, cursor, key, elem){
+        if(smpi_attr_get(comm, (int)key, &value, &flag)==MPI_SUCCESS)
+          elem->delete_fn(comm, (int)key, &value, &flag);
+      }
+    }
     xbt_free(comm);
   }
 }
@@ -274,7 +330,20 @@ compare_ints (const void *a, const void *b)
 
 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
      smpi_switch_data_segment(smpi_process_index());
@@ -290,7 +359,7 @@ void smpi_comm_init_smp(MPI_Comm comm){
 //      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
@@ -307,7 +376,7 @@ void smpi_comm_init_smp(MPI_Comm comm){
       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;
@@ -337,6 +406,10 @@ void smpi_comm_init_smp(MPI_Comm comm){
 
   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{
@@ -362,7 +435,7 @@ void smpi_comm_init_smp(MPI_Comm comm){
 
 
   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);
@@ -387,7 +460,7 @@ void smpi_comm_init_smp(MPI_Comm comm){
   // 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++) {
@@ -405,7 +478,9 @@ void smpi_comm_init_smp(MPI_Comm comm){
   }
   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));
@@ -422,7 +497,7 @@ void smpi_comm_init_smp(MPI_Comm comm){
   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;
     }
@@ -430,5 +505,42 @@ void smpi_comm_init_smp(MPI_Comm comm){
     comm->is_blocked=global_blocked;
   }
   xbt_free(leader_list);
+  
+  if(replaying==1)
+    smpi_process_set_replaying(1); 
+}
+
+
+int smpi_comm_attr_delete(MPI_Comm comm, int keyval){
+  if(comm->attributes==NULL)
+    return MPI_ERR_ARG;
+    
+  xbt_dict_remove(comm->attributes, (const char*)&keyval);
+  return MPI_SUCCESS;
+}
+int smpi_comm_attr_get(MPI_Comm comm, int keyval, void* attr_value, int* flag){
+  xbt_ex_t ex;
+  if(comm->attributes==NULL){
+    *flag=0;
+    return MPI_SUCCESS;
+  }
+  TRY {
+    *(void**)attr_value = xbt_dict_get(comm->attributes, (const char*)&keyval);
+    *flag=1;
+  }
+  CATCH(ex) {
+    *flag=0;
+    xbt_ex_free(ex);
+  }
+  
+  return MPI_SUCCESS;
+}
+
+int smpi_comm_attr_put(MPI_Comm comm, int keyval, void* attr_value){
+  if(comm->attributes==NULL)
+    comm->attributes=xbt_dict_new();
+
+  xbt_dict_set(comm->attributes, (const char*)&keyval, attr_value, NULL);
+  return MPI_SUCCESS;
 }