Hardware Locality (hwloc): myriexpress.h Source File

Hardware Locality (hwloc) 1.2.2

- Main Page
- Related Pages
- Modules
- Data Structures
- Files

- File List

myriexpress.h

    00001 /*
    00002  * Copyright © 2010 INRIA.  All rights reserved.
    00003  * Copyright © 2011 Cisco Systems, Inc.  All rights reserved.
    00004  * See COPYING in top-level directory.
    00005  */
    00006
    00015 #ifndef HWLOC_MYRIEXPRESS_H
    00016 #define HWLOC_MYRIEXPRESS_H
    00017
    00018 #include <hwloc.h>
    00019 #include <hwloc/autogen/config.h>
    00020 #include <hwloc/linux.h>
    00021
    00022 #include <myriexpress.h>
    00023
    00024
    00025 #ifdef __cplusplus
    00026 extern "C" {
    00027 #endif
    00028
    00029
    00040 static inline int
    00041 hwloc_mx_board_get_device_cpuset(hwloc_topology_t topology,
    00042                                  unsigned id, hwloc_cpuset_t set)
    00043 {
    00044   uint32_t in, out;
    00045
    00046   in = id;
    00047   if (mx_get_info(NULL, MX_NUMA_NODE, &in, sizeof(in), &out, sizeof(out)) != MX_SUCCESS) {
    00048     errno = EINVAL;
    00049     return -1;
    00050   }
    00051
    00052   if (out != (uint32_t) -1) {
    00053     hwloc_obj_t obj = NULL;
    00054     while ((obj = hwloc_get_next_obj_by_type(topology, HWLOC_OBJ_NODE, obj)) != NULL)
    00055       if (obj->os_index == out) {
    00056         hwloc_bitmap_copy(set, obj->cpuset);
    00057         goto out;
    00058       }
    00059   }
    00060   /* fallback to the full topology cpuset */
    00061   hwloc_bitmap_copy(set, hwloc_topology_get_complete_cpuset(topology));
    00062
    00063  out:
    00064   return 0;
    00065 }
    00066
    00073 static inline int
    00074 hwloc_mx_endpoint_get_device_cpuset(hwloc_topology_t topology,
    00075                                     mx_endpoint_t endpoint, hwloc_cpuset_t set)
    00076 {
    00077   uint64_t nid;
    00078   uint32_t nindex, eid;
    00079   mx_endpoint_addr_t eaddr;
    00080
    00081   if (mx_get_endpoint_addr(endpoint, &eaddr) != MX_SUCCESS) {
    00082     errno = EINVAL;
    00083     return -1;
    00084   }
    00085
    00086   if (mx_decompose_endpoint_addr(eaddr, &nid, &eid) != MX_SUCCESS) {
    00087     errno = EINVAL;
    00088     return -1;
    00089   }
    00090
    00091   if (mx_nic_id_to_board_number(nid, &nindex) != MX_SUCCESS) {
    00092     errno = EINVAL;
    00093     return -1;
    00094   }
    00095
    00096   return hwloc_mx_board_get_device_cpuset(topology, nindex, set);
    00097 }
    00098
    00102 #ifdef __cplusplus
    00103 } /* extern "C" */
    00104 #endif
    00105
    00106
    00107 #endif /* HWLOC_MYRIEXPRESS_H */