'\" te
.\" Copyright (c) 2003, Sun Microsystems, Inc. All Rights Reserved.
.\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
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.TH getcpuid 3C "16 Apr 2003" "SunOS 5.11" "Standard C Library Functions"
.SH NAME
getcpuid, gethomelgroup \- obtain information on scheduling decisions
.SH SYNOPSIS
.LP
.nf
#include <sys/processor.h>

\fBprocessorid_t\fR \fBgetcpuid\fR(\fBvoid\fR);
.fi

.LP
.nf
\fBushort_t\fR \fBgethomelgroup\fR(\fBvoid\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The \fBgetcpuid()\fR function returns the processor ID on which the calling
thread is currently executing.
.sp
.LP
The \fBgethomelgroup()\fR function returns the home locality group ID of the
calling thread.
.SH RETURN VALUES
.sp
.LP
See \fBDESCRIPTION\fR.
.SH ERRORS
.sp
.LP
No errors are defined.
.SH USAGE
.sp
.LP
Both the current CPU and the home locality group can change at any time.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Interface StabilityT{
\fBgetcpuid()\fR is Stable; \fBgethomelgroup()\fR is Obsolete.
T}
_
MT-LevelMT-Safe
.TE

.SH SEE ALSO
.sp
.LP
\fBpsradm\fR(1M), \fBpsrinfo\fR(1M), \fBpsrset\fR(1M), \fBp_online\fR(2),
\fBprocessor_bind\fR(2), \fBprocessor_info\fR(2), \fBpset_assign\fR(2),
\fBpset_bind\fR(2), \fBpset_info\fR(2), \fBmeminfo\fR(2),
\fBlgrp_home\fR(3LGRP), \fBsysconf\fR(3C), \fBattributes\fR(5)
.SH NOTES
.sp
.LP
The \fBgethomelgroup()\fR function is obsolete and might be removed in a future
release. It has been replaced by \fBlgrp_home\fR(3LGRP).