pset_ctl.2 (2010 09)

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pset_ctl(2) pset_ctl(2)

[EINVAL] The speciﬁed processor set pset , or the processor or the locality domain speciﬁed by

id is invalid.

[EINVAL] The request is

PSET_GETNEXTPSET

and there is no other processor set after pset ,

or the request is

PSET_GETNEXTSPU

and there is no other processor after id in

pset , or the request is

PSET_GETNEXTLDOM

and there is no other locality domain

after id in pset , or the request is

PSET_GETNEXTPROXIMATESPU

and there is no

other proximate processor after id in pset .

[EINVAL] The request is

PSET_GETNUMPROXIMATESPUS

PSET_GETFIRSTPROXIMATESPU

and the processor speciﬁed by id is not enabled.

[ENOSYS] The processor set functionality is not supported by the underlying HP-UX version.

EXAMPLES

Get total count and IDs of all processor sets in the system.

#include <sys/pset.h>

* Get list of all processor sets in the system.

psetid_t *all_psets;

int pset_count, idx;

psetid_t pset;

/* Get total count of processor sets in the system */

pset_count = pset_ctl(PSET_GETNUMPSETS, 0, 0);

if (pset_count < 1) {

perror("pset_ctl(PSET_GETNUMPSETS)");

exit(1);

}

all_psets = (psetid_t *) malloc(sizeof(psetid_t)*pset_count);

memset(all_psets, 0, sizeof(psetid_t)*pset_count);

idx=0;

/* Get first processor set */

pset = pset_ctl(PSET_GETFIRSTPSET, 0, 0);

if (pset < 0) {

perror("pset_ctl(PSET_GETFIRSTPSET)");

exit(2);

}

all_psets[idx++] = pset;

/* Get remaining processor sets */

while (idx < pset_count) {

pset = pset_ctl(PSET_GETNEXTPSET, pset, 0);

if (pset < 0) {

perror("pset_ctl(PSET_GETNEXTPSET)");

exit(3);

} else {

all_psets[idx++] = pset;

}

AUTHOR

pset_ctl() was developed by HP.