Fix heterogeneous support

* redefine orte_process_name_t so it can be converted
  between host and network format as an opal_identifier_t
  aka uint64_t by the OPAL layer.
* correctly send OPAL_DSTORE_ARCH key

ompi/proc/proc.c

@@ -107,6 +107,7 @@ int ompi_proc_init(void)
         OMPI_CAST_RTE_NAME(&proc->super.proc_name)->vpid = i;
 
         if (i == OMPI_PROC_MY_NAME->vpid) {
+            opal_value_t kv;
             ompi_proc_local_proc = proc;
             proc->super.proc_flags = OPAL_PROC_ALL_LOCAL;
             proc->super.proc_hostname = strdup(ompi_process_info.nodename);
@@ -115,8 +116,13 @@ int ompi_proc_init(void)
             opal_proc_local_set(&proc->super);
 #if OPAL_ENABLE_HETEROGENEOUS_SUPPORT
             /* add our arch to the modex */
-            OPAL_MODEX_SEND_STRING(ret, PMIX_SYNC_REQD, PMIX_REMOTE, OPAL_DSTORE_ARCH,
-                                   &proc->super.proc_arch, OPAL_UINT32);
+            OBJ_CONSTRUCT(&kv, opal_value_t);
+            kv.key = strdup(OPAL_DSTORE_ARCH);
+            kv.type = OPAL_UINT32;
+            kv.data.uint32 = opal_local_arch;
+            ret = opal_pmix.put(PMIX_REMOTE, &kv);
+            OBJ_DESTRUCT(&kv);
+
             if (OPAL_SUCCESS != ret) {
                 return ret;
             }

opal/util/proc.h

@@ -23,7 +23,7 @@
 #include "opal/dss/dss.h"
 
 #if OPAL_ENABLE_HETEROGENEOUS_SUPPORT
-#include <arpa/inet.h>
+#include "opal/types.h"
 #endif
 
 /**
@@ -37,22 +37,11 @@
 typedef opal_identifier_t opal_process_name_t;
 
 #if OPAL_ENABLE_HETEROGENEOUS_SUPPORT && !defined(WORDS_BIGENDIAN)
-#define OPAL_PROCESS_NAME_NTOH(guid) opal_process_name_ntoh_intr(&(guid))
-static inline __opal_attribute_always_inline__ void
-opal_process_name_ntoh_intr(opal_process_name_t *name)
-{
-    uint32_t * w = (uint32_t *)name;
-    w[0] = ntohl(w[0]);
-    w[1] = ntohl(w[1]);
-}
-#define OPAL_PROCESS_NAME_HTON(guid) opal_process_name_hton_intr(&(guid))
-static inline __opal_attribute_always_inline__ void
-opal_process_name_hton_intr(opal_process_name_t *name)
-{
-    uint32_t * w = (uint32_t *)name;
-    w[0] = htonl(w[0]);
-    w[1] = htonl(w[1]);
-}
+#define OPAL_PROCESS_NAME_NTOH(guid) \
+    guid = ntoh64(guid)
+
+#define OPAL_PROCESS_NAME_HTON(guid) \
+    guid = hton64(guid)
 #else
 #define OPAL_PROCESS_NAME_NTOH(guid)
 #define OPAL_PROCESS_NAME_HTON(guid)

orte/include/orte/types.h

@@ -10,6 +10,8 @@
  * Copyright (c) 2004-2005 The Regents of the University of California.
  *                         All rights reserved.
  * Copyright (c) 2014      Intel, Inc. All rights reserved.
+ * Copyright (c) 2014      Research Organization for Information Science
+ *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -83,17 +85,17 @@ typedef uint32_t orte_vpid_t;
 #define ORTE_VPID_MAX       UINT32_MAX-2
 #define ORTE_VPID_MIN       0
 
-#define ORTE_PROCESS_NAME_HTON(n)       \
-do {                                    \
-    n.jobid = htonl(n.jobid);           \
-    n.vpid = htonl(n.vpid);             \
-} while (0)
+#if OPAL_ENABLE_HETEROGENEOUS_SUPPORT && !defined(WORDS_BIGENDIAN)
+#define ORTE_PROCESS_NAME_HTON(n)                      \
+    OPAL_PROCESS_NAME_HTON(*(opal_process_name_t *)&(n))
 
-#define ORTE_PROCESS_NAME_NTOH(n)       \
-do {                                    \
-    n.jobid = ntohl(n.jobid);           \
-    n.vpid = ntohl(n.vpid);             \
-} while (0)
+#define ORTE_PROCESS_NAME_NTOH(n)                      \
+    OPAL_PROCESS_NAME_NTOH(*(opal_process_name_t *)&(n))
+#else
+#define ORTE_PROCESS_NAME_HTON(n)
+
+#define ORTE_PROCESS_NAME_NTOH(n)
+#endif
 
 #define ORTE_NAME_ARGS(n) \
     (unsigned long) ((NULL == n) ? (unsigned long)ORTE_JOBID_INVALID : (unsigned long)(n)->jobid), \
@@ -115,11 +117,23 @@ do {                                    \
 
 /*
  * define the process name structure
+ * the OPAL layer sees an orte_process_name_t as an opal_process_name_t aka uint64_t
+ * if heterogeneous is supported, when converting this uint64_t to
+ * an endian neutral format, vpid and jobid will be swapped.
+ * consequently, the orte_process_name_t struct must have different definitions
+ * (swap jobid and vpid) on little and big endian arch.
  */
+#if OPAL_ENABLE_HETEROGENEOUS_SUPPORT && !defined(WORDS_BIGENDIAN)
+struct orte_process_name_t {
+    orte_vpid_t vpid;       /**< Process id - equivalent to rank */
+    orte_jobid_t jobid;     /**< Job number */
+};
+#else
 struct orte_process_name_t {
     orte_jobid_t jobid;     /**< Job number */
     orte_vpid_t vpid;       /**< Process id - equivalent to rank */
 };
+#endif
 typedef struct orte_process_name_t orte_process_name_t;