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Portable Hardware Locality (hwloc) Documentation: v1.8

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myriexpress.h
1 /*
2  * Copyright © 2010-2013 Inria. All rights reserved.
3  * Copyright © 2011 Cisco Systems, Inc. All rights reserved.
4  * See COPYING in top-level directory.
5  */
6 
15 #ifndef HWLOC_MYRIEXPRESS_H
16 #define HWLOC_MYRIEXPRESS_H
17 
18 #include <hwloc.h>
19 #include <hwloc/autogen/config.h>
20 
21 #include <myriexpress.h>
22 
23 
24 #ifdef __cplusplus
25 extern "C" {
26 #endif
27 
28 
49 static __hwloc_inline int
51  unsigned id, hwloc_cpuset_t set)
52 {
53  uint32_t in, out;
54 
55  if (!hwloc_topology_is_thissystem(topology)) {
56  errno = EINVAL;
57  return -1;
58  }
59 
60  in = id;
61  if (mx_get_info(NULL, MX_NUMA_NODE, &in, sizeof(in), &out, sizeof(out)) != MX_SUCCESS) {
62  errno = EINVAL;
63  return -1;
64  }
65 
66  if (out != (uint32_t) -1) {
67  hwloc_obj_t obj = NULL;
68  while ((obj = hwloc_get_next_obj_by_type(topology, HWLOC_OBJ_NODE, obj)) != NULL)
69  if (obj->os_index == out) {
70  hwloc_bitmap_copy(set, obj->cpuset);
71  goto out;
72  }
73  }
74  /* fallback to the full topology cpuset */
76 
77  out:
78  return 0;
79 }
80 
93 static __hwloc_inline int
95  mx_endpoint_t endpoint, hwloc_cpuset_t set)
96 {
97  uint64_t nid;
98  uint32_t nindex, eid;
99  mx_endpoint_addr_t eaddr;
100 
101  if (mx_get_endpoint_addr(endpoint, &eaddr) != MX_SUCCESS) {
102  errno = EINVAL;
103  return -1;
104  }
105 
106  if (mx_decompose_endpoint_addr(eaddr, &nid, &eid) != MX_SUCCESS) {
107  errno = EINVAL;
108  return -1;
109  }
110 
111  if (mx_nic_id_to_board_number(nid, &nindex) != MX_SUCCESS) {
112  errno = EINVAL;
113  return -1;
114  }
115 
116  return hwloc_mx_board_get_device_cpuset(topology, nindex, set);
117 }
118 
122 #ifdef __cplusplus
123 } /* extern "C" */
124 #endif
125 
126 
127 #endif /* HWLOC_MYRIEXPRESS_H */
HWLOC_DECLSPEC int hwloc_topology_is_thissystem(hwloc_topology_t __hwloc_restrict topology) __hwloc_attribute_pure
Does the topology context come from this system?
static __hwloc_inline int hwloc_mx_board_get_device_cpuset(hwloc_topology_t topology, unsigned id, hwloc_cpuset_t set)
Get the CPU set of logical processors that are physically close the MX board id.
Definition: myriexpress.h:50
unsigned os_index
OS-provided physical index number.
Definition: hwloc.h:334
Structure of a topology object.
Definition: hwloc.h:331
HWLOC_DECLSPEC void hwloc_bitmap_copy(hwloc_bitmap_t dst, hwloc_const_bitmap_t src)
Copy the contents of bitmap src into the already allocated bitmap dst.
static __hwloc_inline hwloc_const_cpuset_t hwloc_topology_get_complete_cpuset(hwloc_topology_t topology) __hwloc_attribute_pure
Get complete CPU set.
Definition: helper.h:726
static __hwloc_inline hwloc_obj_t hwloc_get_next_obj_by_type(hwloc_topology_t topology, hwloc_obj_type_t type, hwloc_obj_t prev)
Returns the next object of type type.
NUMA node. A set of processors around memory which the processors can directly access.
Definition: hwloc.h:172
static __hwloc_inline int hwloc_mx_endpoint_get_device_cpuset(hwloc_topology_t topology, mx_endpoint_t endpoint, hwloc_cpuset_t set)
Get the CPU set of logical processors that are physically close the MX endpoint endpoint.
Definition: myriexpress.h:94
hwloc_cpuset_t cpuset
CPUs covered by this object.
Definition: hwloc.h:375
struct hwloc_topology * hwloc_topology_t
Topology context.
Definition: hwloc.h:577
hwloc_bitmap_t hwloc_cpuset_t
A CPU set is a bitmap whose bits are set according to CPU physical OS indexes.
Definition: hwloc.h:116