Turn udcm and ud oob off by default, but allow them to build and be used if someone wants to test them

cmr:v1.7

This commit was SVN r27097.

ompi/mca/btl/openib/connect/btl_openib_connect_udcm.c

@@ -307,7 +307,7 @@ static int udcm_send_request (mca_btl_base_endpoint_t *lcl_ep,
 #define UDCM_GRH_SIZE (sizeof (struct ibv_grh))
 
 /* Priority of this connection module */
-static int udcm_priority        = 27;
+static int udcm_priority        = -1;
 
 /* Number of receive work requests to post */
 static int udcm_recv_count      = UDCM_MIN_RECV_COUNT;

orte/mca/oob/tcp/oob_tcp.c

@@ -1472,7 +1472,7 @@ mca_oob_t* mca_oob_tcp_component_init(int* priority)
     bool including = false, excluding = false;
     char name[32];
 
-    *priority = 1;
+    *priority = 50;
 
     /* are there any interfaces? */
     if (opal_ifcount() <= 0) {

orte/mca/oob/ud/oob_ud_component.c

@@ -213,13 +213,9 @@ static mca_oob_t *mca_oob_ud_component_init(int *priority)
     int num_devices, i, rc;
 
     /* set the priority so that we will select this component
-     * IF devices are available. Note that only the HNP has
+     * only if someone directs to do so
-     * the freedom to make this decision as we will use the
-     * mca param on the orted cmd line to dictate that it
-     * match the HNP's choice. The value gets ignored if
-     * the NULL module is returned
      */
-    *priority = 100;
+    *priority = -1;
 
     opal_hash_table_init (&mca_oob_ud_component.ud_peers, 1024);