cpusetAttachPID(3x) cpusetAttachPID(3x)
cpusetAttachPID - attach a specific process to a cpuset
#include <cpuset.h>
int cpusetAttachPID(qname, pid);
char *qname;
pid_t pid;
The cpusetAttachPID function is used to attach a specific process
identified by its PID to the cpuset identified by qname. Every cpuset
queue has a file that defines access permissions to the queue. The
execute permissions for that file will determine if a process owned by a
specific user can attach a process to the cpuset queue.
The qname argument is the name of the cpuset to which the specified
process should be attached.
This example attaches the current process to a cpuset queue named
mpi_set.
char *qname = "mpi_set";
/* Attach to cpuset, if error - print error & exit */
if (!cpusetAttachPID(qname, pid)) {
perror("cpusetAttachPID");
exit(1);
}
cpusetAttachPID is found in the library "libcpuset.so", and will be
loaded if the option -lcpuset is used with cc(1) or ld(1).
cpuset(1), cpusetCreate(3x), cpusetDetachPID(3x), cpuset(5).
If successful, cpusetAttachPID returns a 1. If cpusetAttachPID fails, it
returns the value 0 and errno is set to indicate the error. The possible
values for errno are the same as those used by sysmp(2).
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