static void test(hwloc_const_bitmap_t cpuset, int flags)
{
hwloc_bitmap_t new_cpuset = hwloc_bitmap_alloc();
result_set("Bind this singlethreaded process", hwloc_set_cpubind(topology, cpuset, flags), support->cpubind->set_thisproc_cpubind || support->cpubind->set_thisthread_cpubind);
result_get("Get this singlethreaded process", cpuset, new_cpuset, hwloc_get_cpubind(topology, new_cpuset, flags), support->cpubind->get_thisproc_cpubind || support->cpubind->get_thisthread_cpubind);
result_set("Bind this thread", hwloc_set_cpubind(topology, cpuset, flags | HWLOC_CPUBIND_THREAD), support->cpubind->set_thisthread_cpubind);
result_get("Get this thread", cpuset, new_cpuset, hwloc_get_cpubind(topology, new_cpuset, flags | HWLOC_CPUBIND_THREAD), support->cpubind->get_thisthread_cpubind);
result_set("Bind this whole process", hwloc_set_cpubind(topology, cpuset, flags | HWLOC_CPUBIND_PROCESS), support->cpubind->set_thisproc_cpubind);
result_get("Get this whole process", cpuset, new_cpuset, hwloc_get_cpubind(topology, new_cpuset, flags | HWLOC_CPUBIND_PROCESS), support->cpubind->get_thisproc_cpubind);
#ifdef HWLOC_WIN_SYS
result_set("Bind process", hwloc_set_proc_cpubind(topology, GetCurrentProcess(), cpuset, flags | HWLOC_CPUBIND_PROCESS), support->cpubind->set_proc_cpubind);
result_get("Get process", cpuset, new_cpuset, hwloc_get_proc_cpubind(topology, GetCurrentProcess(), new_cpuset, flags | HWLOC_CPUBIND_PROCESS), support->cpubind->get_proc_cpubind);
result_set("Bind thread", hwloc_set_thread_cpubind(topology, GetCurrentThread(), cpuset, flags | HWLOC_CPUBIND_THREAD), support->cpubind->set_thread_cpubind);
result_get("Get thread", cpuset, new_cpuset, hwloc_get_thread_cpubind(topology, GetCurrentThread(), new_cpuset, flags | HWLOC_CPUBIND_THREAD), support->cpubind->get_thread_cpubind);
#else /* !HWLOC_WIN_SYS */
result_set("Bind whole process", hwloc_set_proc_cpubind(topology, getpid(), cpuset, flags | HWLOC_CPUBIND_PROCESS), support->cpubind->set_proc_cpubind);
result_get("Get whole process", cpuset, new_cpuset, hwloc_get_proc_cpubind(topology, getpid(), new_cpuset, flags | HWLOC_CPUBIND_PROCESS), support->cpubind->get_proc_cpubind);
result_set("Bind process", hwloc_set_proc_cpubind(topology, getpid(), cpuset, flags), support->cpubind->set_proc_cpubind);
result_get("Get process", cpuset, new_cpuset, hwloc_get_proc_cpubind(topology, getpid(), new_cpuset, flags), support->cpubind->get_proc_cpubind);
#ifdef hwloc_thread_t
result_set("Bind thread", hwloc_set_thread_cpubind(topology, pthread_self(), cpuset, flags), support->cpubind->set_thread_cpubind);
result_get("Get thread", cpuset, new_cpuset, hwloc_get_thread_cpubind(topology, pthread_self(), new_cpuset, flags), support->cpubind->get_thread_cpubind);
#endif
#endif /* !HWLOC_WIN_SYS */
printf("\n");
hwloc_bitmap_free(new_cpuset);
}
/*
* Set the node where the current process will run
*/
void hw_set_first_core_node(int node, int proc)
{
hwloc_nodeset_t nset;
hwloc_cpuset_t set,newset;
if (local_topo->nnodes != 0 ){
nset = hwloc_bitmap_alloc();
set = hwloc_bitmap_alloc();
newset = hwloc_bitmap_alloc();
hwloc_bitmap_zero(set);
hwloc_bitmap_zero(newset);
hwloc_bitmap_zero(nset);
hwloc_bitmap_set(nset,node);
hwloc_cpuset_from_nodeset(topology,set,nset);
int core = hwloc_bitmap_first(set);
hwloc_bitmap_set(newset,core);
if (proc)
hwloc_set_proc_cpubind (topology,0,newset,HWLOC_CPUBIND_PROCESS);
else
hwloc_set_proc_cpubind (topology,0,newset,HWLOC_CPUBIND_THREAD);
hwloc_bitmap_free(newset);
hwloc_bitmap_free(set);
hwloc_bitmap_free(nset);
}
}
/*
* Set the core where the current process will run
* return the core
*/
void hw_set_proc_core(int core)
{
hwloc_cpuset_t set;
core = phys_cpus[core];
set = hwloc_bitmap_alloc();
hwloc_bitmap_zero(set);
hwloc_bitmap_set(set,core);
hwloc_set_proc_cpubind (topology,0,set,HWLOC_CPUBIND_PROCESS);
hwloc_bitmap_free(set);
}
/*
* Set the node where the current process will run
*/
void hw_set_thread_cores(int distance, int core)
{
int i;
hwloc_cpuset_t set;
set = hwloc_bitmap_alloc();
hwloc_bitmap_zero(set);
for(i=core;i<core+distance;i++)
hwloc_bitmap_set(set,i);
hwloc_set_proc_cpubind (topology,0,set,HWLOC_CPUBIND_THREAD);
hwloc_bitmap_free(set);
}
/*
* Set the node where the current thread will run
*/
void hw_set_thread_node(int node)
{
hwloc_nodeset_t nset;
hwloc_cpuset_t set;
if (local_topo->nnodes != 0 ){
nset = hwloc_bitmap_alloc();
set = hwloc_bitmap_alloc();
hwloc_bitmap_zero(nset);
hwloc_bitmap_set(nset,node);
hwloc_cpuset_from_nodeset(topology,set,nset);
hwloc_set_proc_cpubind (topology,0,set,HWLOC_CPUBIND_THREAD);
hwloc_bitmap_free(set);
hwloc_bitmap_free(nset);
}
}
int main(int argc, char *argv[])
{
hwloc_topology_t topology;
int loaded = 0;
unsigned depth;
hwloc_bitmap_t cpubind_set, membind_set;
int got_cpubind = 0, got_membind = 0;
int working_on_cpubind = 1; /* membind if 0 */
int get_binding = 0;
int get_last_cpu_location = 0;
unsigned long flags = 0;
int force = 0;
int single = 0;
int verbose = 0;
int logical = 1;
int taskset = 0;
int cpubind_flags = 0;
hwloc_membind_policy_t membind_policy = HWLOC_MEMBIND_BIND;
int membind_flags = 0;
int opt;
int ret;
int pid_number = -1;
hwloc_pid_t pid = 0; /* only valid when pid_number > 0, but gcc-4.8 still reports uninitialized warnings */
char *callname;
cpubind_set = hwloc_bitmap_alloc();
membind_set = hwloc_bitmap_alloc();
/* don't load now, in case some options change the config before the topology is actually used */
#define LOADED() (loaded)
#define ENSURE_LOADED() do { \
if (!loaded) { \
hwloc_topology_init(&topology); \
hwloc_topology_set_all_types_filter(topology, HWLOC_TYPE_FILTER_KEEP_ALL); \
hwloc_topology_set_flags(topology, flags); \
hwloc_topology_load(topology); \
depth = hwloc_topology_get_depth(topology); \
loaded = 1; \
} \
} while (0)
callname = argv[0];
/* skip argv[0], handle options */
argv++;
argc--;
while (argc >= 1) {
if (!strcmp(argv[0], "--")) {
argc--;
argv++;
break;
}
opt = 0;
if (*argv[0] == '-') {
if (!strcmp(argv[0], "-v") || !strcmp(argv[0], "--verbose")) {
verbose++;
goto next;
}
if (!strcmp(argv[0], "-q") || !strcmp(argv[0], "--quiet")) {
verbose--;
goto next;
}
if (!strcmp(argv[0], "--help")) {
usage("hwloc-bind", stdout);
return EXIT_SUCCESS;
}
if (!strcmp(argv[0], "--single")) {
single = 1;
goto next;
}
if (!strcmp(argv[0], "-f") || !strcmp(argv[0], "--force")) {
force = 1;
goto next;
}
if (!strcmp(argv[0], "--strict")) {
cpubind_flags |= HWLOC_CPUBIND_STRICT;
membind_flags |= HWLOC_MEMBIND_STRICT;
goto next;
}
if (!strcmp(argv[0], "--pid")) {
if (argc < 2) {
usage ("hwloc-bind", stderr);
exit(EXIT_FAILURE);
}
pid_number = atoi(argv[1]);
opt = 1;
goto next;
}
if (!strcmp (argv[0], "--version")) {
printf("%s %s\n", callname, HWLOC_VERSION);
exit(EXIT_SUCCESS);
}
if (!strcmp(argv[0], "-l") || !strcmp(argv[0], "--logical")) {
logical = 1;
goto next;
}
if (!strcmp(argv[0], "-p") || !strcmp(argv[0], "--physical")) {
logical = 0;
goto next;
}
if (!strcmp(argv[0], "--taskset")) {
taskset = 1;
goto next;
}
if (!strcmp (argv[0], "-e") || !strncmp (argv[0], "--get-last-cpu-location", 10)) {
get_last_cpu_location = 1;
goto next;
}
if (!strcmp (argv[0], "--get")) {
get_binding = 1;
goto next;
}
if (!strcmp (argv[0], "--cpubind")) {
working_on_cpubind = 1;
goto next;
}
if (!strcmp (argv[0], "--membind")) {
working_on_cpubind = 0;
goto next;
}
if (!strcmp (argv[0], "--mempolicy")) {
if (!strncmp(argv[1], "default", 2))
membind_policy = HWLOC_MEMBIND_DEFAULT;
else if (!strncmp(argv[1], "firsttouch", 2))
membind_policy = HWLOC_MEMBIND_FIRSTTOUCH;
else if (!strncmp(argv[1], "bind", 2))
membind_policy = HWLOC_MEMBIND_BIND;
else if (!strncmp(argv[1], "interleave", 2))
membind_policy = HWLOC_MEMBIND_INTERLEAVE;
else if (!strncmp(argv[1], "nexttouch", 2))
membind_policy = HWLOC_MEMBIND_NEXTTOUCH;
else {
fprintf(stderr, "Unrecognized memory binding policy %s\n", argv[1]);
usage ("hwloc-bind", stderr);
exit(EXIT_FAILURE);
}
opt = 1;
goto next;
}
if (!strcmp (argv[0], "--whole-system")) {
if (loaded) {
fprintf(stderr, "Input option %s disallowed after options using the topology\n", argv[0]);
exit(EXIT_FAILURE);
}
flags |= HWLOC_TOPOLOGY_FLAG_WHOLE_SYSTEM;
goto next;
}
if (!strcmp (argv[0], "--restrict")) {
hwloc_bitmap_t restrictset;
int err;
if (argc < 2) {
usage (callname, stdout);
exit(EXIT_FAILURE);
}
restrictset = hwloc_bitmap_alloc();
hwloc_bitmap_sscanf(restrictset, argv[1]);
ENSURE_LOADED();
err = hwloc_topology_restrict (topology, restrictset, 0);
if (err) {
perror("Restricting the topology");
/* fallthrough */
}
hwloc_bitmap_free(restrictset);
argc--;
argv++;
goto next;
}
fprintf (stderr, "Unrecognized option: %s\n", argv[0]);
usage("hwloc-bind", stderr);
return EXIT_FAILURE;
}
ENSURE_LOADED();
ret = hwloc_calc_process_arg(topology, depth, argv[0], logical,
working_on_cpubind ? cpubind_set : membind_set,
verbose);
if (ret < 0) {
if (verbose > 0)
fprintf(stderr, "assuming the command starts at %s\n", argv[0]);
break;
}
if (working_on_cpubind)
got_cpubind = 1;
else
got_membind = 1;
next:
argc -= opt+1;
argv += opt+1;
}
ENSURE_LOADED();
if (pid_number > 0) {
pid = hwloc_pid_from_number(pid_number, !(get_binding || get_last_cpu_location));
/* no need to set_pid()
* the doc just says we're operating on pid, not that we're retrieving the topo/cpuset as seen from inside pid
*/
}
if (get_last_cpu_location && !working_on_cpubind) {
fprintf(stderr, "Options --membind and --get-last-cpu-location cannot be combined.\n");
return EXIT_FAILURE;
}
if ((get_binding || get_last_cpu_location) && (got_cpubind || got_membind)) {
/* doesn't work because get_binding/get_last_cpu_location overwrites cpubind_set */
fprintf(stderr, "Cannot display and set binding at the same time.\n");
return EXIT_FAILURE;
}
if (get_binding || get_last_cpu_location) {
char *s;
const char *policystr = NULL;
int err;
if (working_on_cpubind) {
if (get_last_cpu_location) {
if (pid_number > 0)
err = hwloc_get_proc_last_cpu_location(topology, pid, cpubind_set, 0);
else
err = hwloc_get_last_cpu_location(topology, cpubind_set, 0);
} else {
if (pid_number > 0)
err = hwloc_get_proc_cpubind(topology, pid, cpubind_set, 0);
else
err = hwloc_get_cpubind(topology, cpubind_set, 0);
}
if (err) {
const char *errmsg = strerror(errno);
if (pid_number > 0)
fprintf(stderr, "hwloc_get_proc_%s %d failed (errno %d %s)\n", get_last_cpu_location ? "last_cpu_location" : "cpubind", pid_number, errno, errmsg);
else
fprintf(stderr, "hwloc_get_%s failed (errno %d %s)\n", get_last_cpu_location ? "last_cpu_location" : "cpubind", errno, errmsg);
return EXIT_FAILURE;
}
if (taskset)
hwloc_bitmap_taskset_asprintf(&s, cpubind_set);
else
hwloc_bitmap_asprintf(&s, cpubind_set);
} else {
hwloc_membind_policy_t policy;
if (pid_number > 0)
err = hwloc_get_proc_membind(topology, pid, membind_set, &policy, 0);
else
err = hwloc_get_membind(topology, membind_set, &policy, 0);
if (err) {
const char *errmsg = strerror(errno);
if (pid_number > 0)
fprintf(stderr, "hwloc_get_proc_membind %d failed (errno %d %s)\n", pid_number, errno, errmsg);
else
fprintf(stderr, "hwloc_get_membind failed (errno %d %s)\n", errno, errmsg);
return EXIT_FAILURE;
}
if (taskset)
hwloc_bitmap_taskset_asprintf(&s, membind_set);
else
hwloc_bitmap_asprintf(&s, membind_set);
switch (policy) {
case HWLOC_MEMBIND_DEFAULT: policystr = "default"; break;
case HWLOC_MEMBIND_FIRSTTOUCH: policystr = "firsttouch"; break;
case HWLOC_MEMBIND_BIND: policystr = "bind"; break;
case HWLOC_MEMBIND_INTERLEAVE: policystr = "interleave"; break;
case HWLOC_MEMBIND_NEXTTOUCH: policystr = "nexttouch"; break;
default: fprintf(stderr, "unknown memory policy %d\n", policy); assert(0); break;
}
}
if (policystr)
printf("%s (%s)\n", s, policystr);
else
printf("%s\n", s);
free(s);
}
if (got_membind) {
if (hwloc_bitmap_iszero(membind_set)) {
if (verbose >= 0)
fprintf(stderr, "cannot membind to empty set\n");
if (!force)
goto failed_binding;
}
if (verbose > 0) {
char *s;
hwloc_bitmap_asprintf(&s, membind_set);
fprintf(stderr, "binding on memory set %s\n", s);
free(s);
}
if (single)
hwloc_bitmap_singlify(membind_set);
if (pid_number > 0)
ret = hwloc_set_proc_membind(topology, pid, membind_set, membind_policy, membind_flags);
else
ret = hwloc_set_membind(topology, membind_set, membind_policy, membind_flags);
if (ret && verbose >= 0) {
int bind_errno = errno;
const char *errmsg = strerror(bind_errno);
char *s;
hwloc_bitmap_asprintf(&s, membind_set);
if (pid_number > 0)
fprintf(stderr, "hwloc_set_proc_membind %s %d failed (errno %d %s)\n", s, pid_number, bind_errno, errmsg);
else
fprintf(stderr, "hwloc_set_membind %s failed (errno %d %s)\n", s, bind_errno, errmsg);
free(s);
}
if (ret && !force)
goto failed_binding;
}
if (got_cpubind) {
if (hwloc_bitmap_iszero(cpubind_set)) {
if (verbose >= 0)
fprintf(stderr, "cannot cpubind to empty set\n");
if (!force)
goto failed_binding;
}
if (verbose > 0) {
char *s;
hwloc_bitmap_asprintf(&s, cpubind_set);
fprintf(stderr, "binding on cpu set %s\n", s);
free(s);
}
if (single)
hwloc_bitmap_singlify(cpubind_set);
if (pid_number > 0)
ret = hwloc_set_proc_cpubind(topology, pid, cpubind_set, cpubind_flags);
else
ret = hwloc_set_cpubind(topology, cpubind_set, cpubind_flags);
if (ret && verbose >= 0) {
int bind_errno = errno;
const char *errmsg = strerror(bind_errno);
char *s;
hwloc_bitmap_asprintf(&s, cpubind_set);
if (pid_number > 0)
fprintf(stderr, "hwloc_set_proc_cpubind %s %d failed (errno %d %s)\n", s, pid_number, bind_errno, errmsg);
else
fprintf(stderr, "hwloc_set_cpubind %s failed (errno %d %s)\n", s, bind_errno, errmsg);
free(s);
}
if (ret && !force)
goto failed_binding;
}
hwloc_bitmap_free(cpubind_set);
hwloc_bitmap_free(membind_set);
hwloc_topology_destroy(topology);
if (pid_number > 0)
return EXIT_SUCCESS;
if (0 == argc) {
if (get_binding || get_last_cpu_location)
return EXIT_SUCCESS;
fprintf(stderr, "%s: nothing to do!\n", callname);
return EXIT_FAILURE;
}
/* FIXME: check whether Windows execvp() passes INHERIT_PARENT_AFFINITY to CreateProcess()
* because we need to propagate processor group affinity. However process-wide affinity
* isn't supported with processor groups so far.
*/
ret = execvp(argv[0], argv);
if (ret) {
fprintf(stderr, "%s: Failed to launch executable \"%s\"\n",
callname, argv[0]);
perror("execvp");
}
return EXIT_FAILURE;
failed_binding:
hwloc_bitmap_free(cpubind_set);
hwloc_bitmap_free(membind_set);
hwloc_topology_destroy(topology);
return EXIT_FAILURE;
}
int main(int argc, char *argv[])
{
hwloc_topology_t topology;
unsigned depth;
hwloc_bitmap_t cpubind_set, membind_set;
int got_cpubind = 0, got_membind = 0;
int working_on_cpubind = 1; /* membind if 0 */
int get_binding = 0;
int get_last_cpu_location = 0;
unsigned long flags = HWLOC_TOPOLOGY_FLAG_WHOLE_IO|HWLOC_TOPOLOGY_FLAG_ICACHES;
int force = 0;
int single = 0;
int verbose = 0;
int logical = 1;
int taskset = 0;
int cpubind_flags = 0;
hwloc_membind_policy_t membind_policy = HWLOC_MEMBIND_BIND;
int membind_flags = 0;
int opt;
int ret;
int pid_number = 0;
hwloc_pid_t pid;
char *callname;
cpubind_set = hwloc_bitmap_alloc();
membind_set = hwloc_bitmap_alloc();
hwloc_topology_init(&topology);
hwloc_topology_set_flags(topology, flags);
hwloc_topology_load(topology);
depth = hwloc_topology_get_depth(topology);
callname = argv[0];
/* skip argv[0], handle options */
argv++;
argc--;
while (argc >= 1) {
if (!strcmp(argv[0], "--")) {
argc--;
argv++;
break;
}
opt = 0;
if (*argv[0] == '-') {
if (!strcmp(argv[0], "-v") || !strcmp(argv[0], "--verbose")) {
verbose++;
goto next;
}
else if (!strcmp(argv[0], "-q") || !strcmp(argv[0], "--quiet")) {
verbose--;
goto next;
}
else if (!strcmp(argv[0], "--help")) {
usage("hwloc-bind", stdout);
return EXIT_SUCCESS;
}
else if (!strcmp(argv[0], "--single")) {
single = 1;
goto next;
}
else if (!strcmp(argv[0], "-f") || !strcmp(argv[0], "--force")) {
force = 1;
goto next;
}
else if (!strcmp(argv[0], "--strict")) {
cpubind_flags |= HWLOC_CPUBIND_STRICT;
membind_flags |= HWLOC_MEMBIND_STRICT;
goto next;
}
else if (!strcmp(argv[0], "--pid")) {
if (argc < 2) {
usage ("hwloc-bind", stderr);
exit(EXIT_FAILURE);
}
pid_number = atoi(argv[1]);
opt = 1;
goto next;
}
else if (!strcmp (argv[0], "--version")) {
printf("%s %s\n", callname, VERSION);
exit(EXIT_SUCCESS);
}
if (!strcmp(argv[0], "-l") || !strcmp(argv[0], "--logical")) {
logical = 1;
goto next;
}
if (!strcmp(argv[0], "-p") || !strcmp(argv[0], "--physical")) {
logical = 0;
goto next;
}
if (!strcmp(argv[0], "--taskset")) {
taskset = 1;
goto next;
}
else if (!strcmp (argv[0], "-e") || !strncmp (argv[0], "--get-last-cpu-location", 10)) {
get_last_cpu_location = 1;
goto next;
}
else if (!strcmp (argv[0], "--get")) {
get_binding = 1;
goto next;
}
else if (!strcmp (argv[0], "--cpubind")) {
working_on_cpubind = 1;
goto next;
}
else if (!strcmp (argv[0], "--membind")) {
working_on_cpubind = 0;
goto next;
}
else if (!strcmp (argv[0], "--mempolicy")) {
if (!strncmp(argv[1], "default", 2))
membind_policy = HWLOC_MEMBIND_DEFAULT;
else if (!strncmp(argv[1], "firsttouch", 2))
membind_policy = HWLOC_MEMBIND_FIRSTTOUCH;
else if (!strncmp(argv[1], "bind", 2))
membind_policy = HWLOC_MEMBIND_BIND;
else if (!strncmp(argv[1], "interleave", 2))
membind_policy = HWLOC_MEMBIND_INTERLEAVE;
else if (!strncmp(argv[1], "replicate", 2))
membind_policy = HWLOC_MEMBIND_REPLICATE;
else if (!strncmp(argv[1], "nexttouch", 2))
membind_policy = HWLOC_MEMBIND_NEXTTOUCH;
else {
fprintf(stderr, "Unrecognized memory binding policy %s\n", argv[1]);
usage ("hwloc-bind", stderr);
exit(EXIT_FAILURE);
}
opt = 1;
goto next;
}
else if (!strcmp (argv[0], "--whole-system")) {
flags |= HWLOC_TOPOLOGY_FLAG_WHOLE_SYSTEM;
hwloc_topology_destroy(topology);
hwloc_topology_init(&topology);
hwloc_topology_set_flags(topology, flags);
hwloc_topology_load(topology);
depth = hwloc_topology_get_depth(topology);
goto next;
}
else if (!strcmp (argv[0], "--restrict")) {
hwloc_bitmap_t restrictset;
int err;
if (argc < 2) {
usage (callname, stdout);
exit(EXIT_FAILURE);
}
restrictset = hwloc_bitmap_alloc();
hwloc_bitmap_sscanf(restrictset, argv[1]);
err = hwloc_topology_restrict (topology, restrictset, 0);
if (err) {
perror("Restricting the topology");
/* fallthrough */
}
hwloc_bitmap_free(restrictset);
argc--;
argv++;
goto next;
}
fprintf (stderr, "Unrecognized option: %s\n", argv[0]);
usage("hwloc-bind", stderr);
return EXIT_FAILURE;
}
ret = hwloc_calc_process_arg(topology, depth, argv[0], logical,
working_on_cpubind ? cpubind_set : membind_set,
verbose);
if (ret < 0) {
if (verbose > 0)
fprintf(stderr, "assuming the command starts at %s\n", argv[0]);
break;
}
if (working_on_cpubind)
got_cpubind = 1;
else
got_membind = 1;
next:
argc -= opt+1;
argv += opt+1;
}
pid = hwloc_pid_from_number(pid_number, !(get_binding || get_last_cpu_location));
if (get_binding || get_last_cpu_location) {
char *s;
const char *policystr = NULL;
int err;
if (working_on_cpubind) {
if (get_last_cpu_location) {
if (pid_number)
err = hwloc_get_proc_last_cpu_location(topology, pid, cpubind_set, 0);
else
err = hwloc_get_last_cpu_location(topology, cpubind_set, 0);
} else {
if (pid_number)
err = hwloc_get_proc_cpubind(topology, pid, cpubind_set, 0);
else
err = hwloc_get_cpubind(topology, cpubind_set, 0);
}
if (err) {
const char *errmsg = strerror(errno);
if (pid_number)
fprintf(stderr, "hwloc_get_proc_%s %d failed (errno %d %s)\n", get_last_cpu_location ? "last_cpu_location" : "cpubind", pid_number, errno, errmsg);
else
fprintf(stderr, "hwloc_get_%s failed (errno %d %s)\n", get_last_cpu_location ? "last_cpu_location" : "cpubind", errno, errmsg);
return EXIT_FAILURE;
}
if (taskset)
hwloc_bitmap_taskset_asprintf(&s, cpubind_set);
else
hwloc_bitmap_asprintf(&s, cpubind_set);
} else {
hwloc_membind_policy_t policy;
if (pid_number)
err = hwloc_get_proc_membind(topology, pid, membind_set, &policy, 0);
else
err = hwloc_get_membind(topology, membind_set, &policy, 0);
if (err) {
const char *errmsg = strerror(errno);
if (pid_number)
fprintf(stderr, "hwloc_get_proc_membind %d failed (errno %d %s)\n", pid_number, errno, errmsg);
else
fprintf(stderr, "hwloc_get_membind failed (errno %d %s)\n", errno, errmsg);
return EXIT_FAILURE;
}
if (taskset)
hwloc_bitmap_taskset_asprintf(&s, membind_set);
else
hwloc_bitmap_asprintf(&s, membind_set);
switch (policy) {
case HWLOC_MEMBIND_DEFAULT: policystr = "default"; break;
case HWLOC_MEMBIND_FIRSTTOUCH: policystr = "firsttouch"; break;
case HWLOC_MEMBIND_BIND: policystr = "bind"; break;
case HWLOC_MEMBIND_INTERLEAVE: policystr = "interleave"; break;
case HWLOC_MEMBIND_REPLICATE: policystr = "replicate"; break;
case HWLOC_MEMBIND_NEXTTOUCH: policystr = "nexttouch"; break;
default: fprintf(stderr, "unknown memory policy %d\n", policy); assert(0); break;
}
}
if (policystr)
printf("%s (%s)\n", s, policystr);
else
printf("%s\n", s);
free(s);
return EXIT_SUCCESS;
}
if (got_membind) {
if (hwloc_bitmap_iszero(membind_set)) {
if (verbose >= 0)
fprintf(stderr, "cannot membind to empty set\n");
if (!force)
goto failed_binding;
}
if (verbose > 0) {
char *s;
hwloc_bitmap_asprintf(&s, membind_set);
fprintf(stderr, "binding on memory set %s\n", s);
free(s);
}
if (single)
hwloc_bitmap_singlify(membind_set);
if (pid_number)
ret = hwloc_set_proc_membind(topology, pid, membind_set, membind_policy, membind_flags);
else
ret = hwloc_set_membind(topology, membind_set, membind_policy, membind_flags);
if (ret && verbose >= 0) {
int bind_errno = errno;
const char *errmsg = strerror(bind_errno);
char *s;
hwloc_bitmap_asprintf(&s, membind_set);
if (pid_number)
fprintf(stderr, "hwloc_set_proc_membind %s %d failed (errno %d %s)\n", s, pid_number, bind_errno, errmsg);
else
fprintf(stderr, "hwloc_set_membind %s failed (errno %d %s)\n", s, bind_errno, errmsg);
free(s);
}
if (ret && !force)
goto failed_binding;
}
if (got_cpubind) {
if (hwloc_bitmap_iszero(cpubind_set)) {
if (verbose >= 0)
fprintf(stderr, "cannot cpubind to empty set\n");
if (!force)
goto failed_binding;
}
if (verbose > 0) {
char *s;
hwloc_bitmap_asprintf(&s, cpubind_set);
fprintf(stderr, "binding on cpu set %s\n", s);
free(s);
}
if (single)
hwloc_bitmap_singlify(cpubind_set);
if (pid_number)
ret = hwloc_set_proc_cpubind(topology, pid, cpubind_set, cpubind_flags);
else
ret = hwloc_set_cpubind(topology, cpubind_set, cpubind_flags);
if (ret && verbose >= 0) {
int bind_errno = errno;
const char *errmsg = strerror(bind_errno);
char *s;
hwloc_bitmap_asprintf(&s, cpubind_set);
if (pid_number)
fprintf(stderr, "hwloc_set_proc_cpubind %s %d failed (errno %d %s)\n", s, pid_number, bind_errno, errmsg);
else
fprintf(stderr, "hwloc_set_cpubind %s failed (errno %d %s)\n", s, bind_errno, errmsg);
free(s);
}
if (ret && !force)
goto failed_binding;
}
hwloc_bitmap_free(cpubind_set);
hwloc_bitmap_free(membind_set);
hwloc_topology_destroy(topology);
if (pid_number)
return EXIT_SUCCESS;
if (0 == argc) {
fprintf(stderr, "%s: nothing to do!\n", callname);
return EXIT_FAILURE;
}
ret = execvp(argv[0], argv);
if (ret) {
fprintf(stderr, "%s: Failed to launch executable \"%s\"\n",
callname, argv[0]);
perror("execvp");
}
return EXIT_FAILURE;
failed_binding:
hwloc_bitmap_free(cpubind_set);
hwloc_bitmap_free(membind_set);
hwloc_topology_destroy(topology);
return EXIT_FAILURE;
}