Reverting r32355: a number of processes is not a notion that a low level

communication library should use to initialize itself.

Ralph will champion this change back with an RFC if there is a realistic
need/use case from the community.

This commit was SVN r32361.

The following SVN revision numbers were found above:
  r32355 --> open-mpi/ompi@c903917f47

ompi/runtime/ompi_mpi_init.c

@@ -511,7 +511,6 @@ int ompi_mpi_init(int argc, char **argv, int requested, int *provided)
     opal_process_info.proc_session_dir = ompi_process_info.proc_session_dir;
     opal_process_info.num_local_peers  = (int32_t)ompi_process_info.num_local_peers;
     opal_process_info.my_local_rank    = (int32_t)ompi_process_info.my_local_rank;
-    opal_process_info.num_procs        = (uint32_t)ompi_process_info.num_procs;
 #if OPAL_HAVE_HWLOC
     opal_process_info.cpuset           = ompi_process_info.cpuset;
 #endif  /* OPAL_HAVE_HWLOC */

opal/util/proc.c

@@ -21,7 +21,6 @@ opal_process_info_t opal_process_info = {
     .proc_session_dir = "not yet defined",
     .num_local_peers = 1,  /* I'm the only process around here */
     .my_local_rank = 0,    /* I'm the only process around here */
-    .num_procs = 1,        /* I'm the only process I know about */
 #if OPAL_HAVE_HWLOC
     .cpuset = NULL,
 #endif

opal/util/proc.h

@@ -53,8 +53,7 @@ typedef struct opal_process_info_t {
     char *job_session_dir;              /**< Session directory for job */
     char *proc_session_dir;             /**< Session directory for the process */
     int32_t num_local_peers;            /**< number of procs from my job that share my node with me */
-    int32_t my_local_rank;              /**< local rank */
-    uint32_t num_procs;                 /**< number of peers */
+    int32_t my_local_rank;    /**< local rank */
 #if OPAL_HAVE_HWLOC
     char *cpuset;                       /**< String-representation of bitmap where we are bound */
 #endif