'\" te
.\"  Copyright (c) 2004 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 PSRINFO 1M "Feb 21, 2004"
.SH NAME
psrinfo \- displays information about processors
.SH SYNOPSIS
.LP
.nf
\fBpsrinfo\fR [\fB-p\fR] [\fB-v\fR] [\fIprocessor_id\fR]...
.fi

.LP
.nf
\fBpsrinfo\fR [\fB-p\fR] \fB-s\fR \fIprocessor_id\fR
.fi

.SH DESCRIPTION
.sp
.LP
\fBpsrinfo\fR displays information about processors. Each physical processor
may support multiple virtual processors. Each virtual processor is an entity
with its own interrupt \fBID\fR, capable of executing independent threads.
.sp
.LP
Without the \fIprocessor_id\fR operand, \fBpsrinfo\fR displays one line for
each configured processor, displaying whether it is on-line, non-interruptible
(designated by no-intr), spare, off-line, faulted or powered off, and when that
status last changed. Use the processor_id operand to display information about
a specific processor. See \fBOPERANDS\fR.
.SH OPTIONS
.sp
.LP
The following options are supported:
.sp
.ne 2
.na
\fB\fB-s\fR\fI processor_id\fR\fR
.ad
.RS 19n
Silent mode. Displays \fB1\fR if the specified processor is fully on-line.
Displays \fB0\fR if the specified processor is non-interruptible, spare,
off-line, faulted or powered off.
.sp
Use silent mode when using \fBpsrinfo\fR in shell scripts.
.RE

.sp
.ne 2
.na
\fB\fB-p\fR\fR
.ad
.RS 19n
Display the number of physical processors in a system.
.sp
When combined with the \fB-v\fR option, reports additional information about
each physical processor.
.RE

.sp
.ne 2
.na
\fB\fB-v\fR\fR
.ad
.RS 19n
Verbose mode. Displays additional information about the specified processors,
including: processor type, floating point unit type and clock speed. If any of
this information cannot be determined, \fBpsrinfo\fR displays \fBunknown\fR.
.sp
When combined with the \fB-p\fR option, reports additional information about
each physical processor.
.RE

.SH OPERANDS
.sp
.LP
The following operands are supported:
.sp
.ne 2
.na
\fB\fIprocessor_id\fR\fR
.ad
.RS 16n
The processor \fBID\fR of the processor about which information is to be
displayed.
.sp
Specify \fIprocessor_id\fR as an individual processor number (for example,
\fB3\fR), multiple processor numbers separated by spaces (for example, \fB1 2
3\fR), or a range of processor numbers (for example, \fB1-4\fR). It is also
possible to combine ranges and (individual or multiple) \fIprocessor_id\fRs
(for example, \fB1-3 5 7-8 9\fR).
.RE

.SH EXAMPLES
.LP
\fBExample 1 \fRDisplaying Information About All Configured Processors in
Verbose Mode
.sp
.LP
The following example displays information about all configured processors in
verbose mode.

.sp
.in +2
.nf
\fBpsrinfo \fR\fB-v\fR
.fi
.in -2
.sp

.LP
\fBExample 2 \fRDetermining If a Processor is On-line
.sp
.LP
The following example uses \fBpsrinfo\fR in a shell script to determine if a
processor is on-line.

.sp
.in +2
.nf
if [ "`psrinfo \fB-s\fR 3 2> /dev/null`" \(mieq 1 ]
then
	echo "processor 3 is up"
fi
.fi
.in -2
.sp

.LP
\fBExample 3 \fRDisplaying Information About the Physical Processors in the
System
.sp
.LP
With no additional arguments, the \fB-p\fR option displays a single integer:
the number of physical processors in the system:

.sp
.in +2
.nf
> psrinfo -p
                8
.fi
.in -2
.sp

.sp
.LP
\fBpsrinfo\fR also accepts command line arguments (processor \fBID\fRs):

.sp
.in +2
.nf
> psrinfo -p 0 512   # IDs 0 and 512 exist on the
1                    # same physical processor

> psrinfo -p 0 1     # IDs 0 and 1 exist on different
2                    # physical processors
.fi
.in -2
.sp

.sp
.LP
In this example, virtual processors \fB0\fR and \fB512\fR exist on the same
physical processor. Virtual processors \fB0\fR and \fB1\fR do not. This is
specific to this example and is and not a general rule.

.SH EXIT STATUS
.sp
.LP
The following exit values are returned:
.sp
.ne 2
.na
\fB\fB0\fR\fR
.ad
.RS 6n
Successful completion.
.RE

.sp
.ne 2
.na
\fB\fB>0\fR\fR
.ad
.RS 6n
An error occurred.
.RE

.SH SEE ALSO
.sp
.LP
\fBpsradm\fR(1M), \fBp_online\fR(2), \fBprocessor_info\fR(2),
\fBattributes\fR(5)
.SH DIAGNOSTICS
.sp
.ne 2
.na
\fB\fBpsrinfo:\fR \fBprocessor\fR \fB9:\fR \fBInvalid\fR \fBargument\fR\fR
.ad
.sp .6
.RS 4n
The specified processor does not exist.
.RE