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Hardware Locality (hwloc)
1.11.1
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Functions | |
| int | hwloc_linux_parse_cpumap_file (FILE *file, hwloc_cpuset_t set) |
| int | hwloc_linux_set_tid_cpubind (hwloc_topology_t topology, pid_t tid, hwloc_const_cpuset_t set) |
| int | hwloc_linux_get_tid_cpubind (hwloc_topology_t topology, pid_t tid, hwloc_cpuset_t set) |
| int | hwloc_linux_get_tid_last_cpu_location (hwloc_topology_t topology, pid_t tid, hwloc_bitmap_t set) |
This includes helpers for manipulating Linux kernel cpumap files, and hwloc equivalents of the Linux sched_setaffinity and sched_getaffinity system calls.
| int hwloc_linux_get_tid_cpubind | ( | hwloc_topology_t | topology, |
| pid_t | tid, | ||
| hwloc_cpuset_t | set | ||
| ) |
Get the current binding of thread tid.
The behavior is exactly the same as the Linux sched_getaffinity system call, but uses a hwloc cpuset.
| int hwloc_linux_get_tid_last_cpu_location | ( | hwloc_topology_t | topology, |
| pid_t | tid, | ||
| hwloc_bitmap_t | set | ||
| ) |
Get the last physical CPU where thread tid ran.
| int hwloc_linux_parse_cpumap_file | ( | FILE * | file, |
| hwloc_cpuset_t | set | ||
| ) |
Convert a linux kernel cpumap file file into hwloc CPU set.
Might be used when reading CPU set from sysfs attributes such as topology and caches for processors, or local_cpus for devices.
| int hwloc_linux_set_tid_cpubind | ( | hwloc_topology_t | topology, |
| pid_t | tid, | ||
| hwloc_const_cpuset_t | set | ||
| ) |
Bind a thread tid on cpus given in cpuset set.
The behavior is exactly the same as the Linux sched_setaffinity system call, but uses a hwloc cpuset.
1.8.9.1