X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/6760cb07d6b57be16928d95339d71e57c4e24f36..ad12e936954df10a0395da3b161e820e07e97f52:/src/smpi/smpi_base.c

diff --git a/src/smpi/smpi_base.c b/src/smpi/smpi_base.c
index da3f3898b9..ed9620b716 100644
--- a/src/smpi/smpi_base.c
+++ b/src/smpi/smpi_base.c
@@ -19,9 +19,6 @@ XBT_LOG_EXTERNAL_CATEGORY(smpi_receiver);
 XBT_LOG_EXTERNAL_CATEGORY(smpi_sender);
 XBT_LOG_EXTERNAL_CATEGORY(smpi_util);
 
-#define EAGER_LIMIT 65536
-#define RDV_TAG     (-10)
-
 void smpi_process_init(int* argc, char*** argv) {
   int index;
   smpi_process_data_t data;
@@ -61,23 +58,10 @@ static MPI_Request build_request(void* buf, int count, MPI_Datatype datatype, in
   request->complete = 0;
   request->match = MPI_REQUEST_NULL;
   request->flags = flags;
-  if(request->size <= EAGER_LIMIT) {
-    request->ack = MPI_REQUEST_NULL;
-  } else {
-    request->ack = xbt_new(s_smpi_mpi_request_t, 1);
-    request->ack->buf = NULL;
-    request->ack->size = 0;
-    request->ack->src = dst;
-    request->ack->dst = src;
-    request->ack->tag = RDV_TAG;
-    request->ack->comm = comm;
-    request->ack->rdv = NULL;
-    request->ack->pair = NULL;
-    request->ack->complete = 0;
-    request->ack->match = MPI_REQUEST_NULL;
-    request->ack->flags = NON_PERSISTENT | ((request->flags & RECV) == RECV ? SEND : RECV);
-    smpi_mpi_start(request->ack);
-  }
+#ifdef HAVE_TRACING
+  request->send = 0;
+  request->recv = 0;
+#endif
   return request;
 }
 
@@ -96,10 +80,6 @@ MPI_Request smpi_mpi_recv_init(void* buf, int count, MPI_Datatype datatype, int
 
 void smpi_mpi_start(MPI_Request request) {
   xbt_assert0(request->complete == 0, "Cannot start a non-finished communication");
-  if(request->size > EAGER_LIMIT) {
-    print_request("RDV ack", request->ack);
-    smpi_mpi_wait(&request->ack, MPI_STATUS_IGNORE);
-  }
   if((request->flags & RECV) == RECV) {
     smpi_process_post_recv(request);
     print_request("New recv", request);
@@ -193,6 +173,9 @@ static void finish_wait(MPI_Request* request, MPI_Status* status) {
   }
   if(((*request)->flags & NON_PERSISTENT) == NON_PERSISTENT) {
     smpi_mpi_request_free(request);
+  } else {
+    (*request)->rdv = NULL;
+    (*request)->pair = NULL;
   }
 }
 
@@ -200,8 +183,7 @@ int smpi_mpi_test(MPI_Request* request, MPI_Status* status) {
   int flag = (*request)->complete;
 
   if(flag) {
-    SIMIX_communication_destroy((*request)->pair);
-    finish_wait(request, status);
+    smpi_mpi_wait(request, status);
   }
   return flag;
 }
@@ -213,8 +195,7 @@ int smpi_mpi_testany(int count, MPI_Request requests[], int* index, MPI_Status*
   flag = 0;
   for(i = 0; i < count; i++) {
     if(requests[i] != MPI_REQUEST_NULL && requests[i]->complete) {
-      SIMIX_communication_destroy(requests[i]->pair);
-      finish_wait(&requests[i], status);
+      smpi_mpi_wait(&requests[i], status);
       *index = i;
       flag = 1;
       break;
@@ -225,12 +206,7 @@ int smpi_mpi_testany(int count, MPI_Request requests[], int* index, MPI_Status*
 
 void smpi_mpi_wait(MPI_Request* request, MPI_Status* status) {
   print_request("wait", *request);
-  // data is null if receiver waits before sender enters the rdv
-  if((*request)->complete) {
-    SIMIX_communication_destroy((*request)->pair);
-  } else {
-    SIMIX_network_wait((*request)->pair, -1.0);
-  }
+  SIMIX_network_wait((*request)->pair, -1.0);
   finish_wait(request, status);
 }
 
@@ -245,7 +221,7 @@ int smpi_mpi_waitany(int count, MPI_Request requests[], MPI_Status* status) {
     for(i = 0; i < count; i++) {
       if(requests[i] != MPI_REQUEST_NULL && requests[i]->complete) {
         index = i;
-        SIMIX_communication_destroy(requests[index]->pair); // always succeeds (but cleans the simix layer)
+        smpi_mpi_wait(&requests[index], status);
         break;
       }
     }
@@ -266,13 +242,11 @@ int smpi_mpi_waitany(int count, MPI_Request requests[], MPI_Status* status) {
       if(size > 0) {
         index = SIMIX_network_waitany(comms);
         index = map[index];
+        finish_wait(&requests[index], status);
       }
       xbt_free(map);
       xbt_dynar_free(&comms);
     }
-    if(index != MPI_UNDEFINED) {
-      finish_wait(&requests[index], status);
-    }
   }
   return index;
 }
@@ -303,8 +277,7 @@ int smpi_mpi_waitsome(int incount, MPI_Request requests[], int* indices, MPI_Sta
   count = 0;
   for(i = 0; i < incount; i++) {
     if(requests[i] != MPI_REQUEST_NULL && requests[i]->complete) {
-      SIMIX_communication_destroy(requests[i]->pair);
-      finish_wait(&requests[i], status != MPI_STATUS_IGNORE ? &status[i] : MPI_STATUS_IGNORE);
+      smpi_mpi_wait(&requests[i], status != MPI_STATUS_IGNORE ? &status[i] : MPI_STATUS_IGNORE);
       indices[count] = i;
       count++;
     }