Remove all references to the MRU list. Add back the repost list checks. For some reasons

it decrease the latency by around 0.3 micro-seconds ...

This commit was SVN r10571.

ompi/mca/btl/gm/btl_gm.c

@@ -565,6 +565,12 @@ static int mca_btl_gm_send_nl(
 			       mca_btl_gm_send_callback,
 			       frag );
     }
+    if(opal_list_get_size(&gm_btl->gm_repost)) {
+        mca_btl_gm_frag_t* frag;
+        while(NULL != (frag = (mca_btl_gm_frag_t*)opal_list_remove_first(&gm_btl->gm_repost))) {
+            gm_provide_receive_buffer(gm_btl->port, frag->hdr, frag->size, frag->priority);
+        }
+    }
 
     return OMPI_SUCCESS;
 }
@@ -622,6 +628,12 @@ int mca_btl_gm_send(
 			       frag );
     }
 
+    if(opal_list_get_size(&gm_btl->gm_repost)) {
+        mca_btl_gm_frag_t* frag;
+        while(NULL != (frag = (mca_btl_gm_frag_t*)opal_list_remove_first(&gm_btl->gm_repost))) {
+            gm_provide_receive_buffer(gm_btl->port, frag->hdr, frag->size, frag->priority);
+        }
+    }
     OPAL_THREAD_UNLOCK(&mca_btl_gm_component.gm_lock);
     return OMPI_SUCCESS;
 }

ompi/mca/btl/gm/btl_gm.h

@@ -58,7 +58,6 @@ struct mca_btl_gm_component_t {
     struct  mca_btl_gm_module_t **gm_btls; /**< array of available BTL modules */
     size_t  gm_max_ports;  /**< maximum number of ports per board */
     size_t  gm_max_boards; /**< maximum number of boards */
-    size_t  gm_num_mru;
     size_t  gm_eager_frag_size;
     size_t  gm_max_frag_size;
     char*   gm_port_name; 

ompi/mca/btl/gm/btl_gm_component.c

@@ -142,8 +142,6 @@ int mca_btl_gm_component_open(void)
         mca_btl_gm_param_register_int("num_high_priority", 8); 
     mca_btl_gm_component.gm_num_repost = 
         mca_btl_gm_param_register_int("num_repost", 4); 
-    mca_btl_gm_component.gm_num_mru = 
-        mca_btl_gm_param_register_int("num_mru", 64); 
     mca_btl_gm_component.gm_port_name=
         mca_btl_gm_param_register_string("port_name", "OMPI");