Custom patch for hwloc (that will be included in hwloc 1.1.2) so that

we don't barf on Linux non-NUMA (NNUMA, aka UMA ;-) ) platforms.

This commit was SVN r24448.

opal/mca/common/hwloc/hwloc/src/topology-linux.c

@@ -862,6 +862,13 @@ hwloc_linux_membind_mask_from_nodeset(hwloc_topology_t topology __hwloc_attribut
   unsigned max_os_index = 0; /* highest os_index + 1 */
   unsigned long *linuxmask;
   unsigned i;
+  hwloc_nodeset_t linux_nodeset = NULL;
+
+  if (hwloc_bitmap_isfull(nodeset)) {
+    linux_nodeset = hwloc_bitmap_alloc();
+    hwloc_bitmap_only(linux_nodeset, 0);
+    nodeset = linux_nodeset;
+  }
 
   max_os_index = hwloc_bitmap_last(nodeset);
   if (max_os_index == (unsigned) -1)
@@ -878,6 +885,9 @@ hwloc_linux_membind_mask_from_nodeset(hwloc_topology_t topology __hwloc_attribut
   for(i=0; i<max_os_index/HWLOC_BITS_PER_LONG; i++)
     linuxmask[i] = hwloc_bitmap_to_ith_ulong(nodeset, i);
 
+  if (linux_nodeset)
+    hwloc_bitmap_free(linux_nodeset);
+
   *max_os_index_p = max_os_index;
   *linuxmaskp = linuxmask;
   return 0;