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.TH QSELECT 1 "2012-01-04" "SGE 8.1.3pre" "Grid Engine User Commands"
.SH NAME
qselect \- select queues.
.\"
.\"
.SH SYNTAX
.B qselect
[
.B \-help
] [
.B \-l resource=val,...
] [
.B \-pe pe_name,...
] [
.B \-q wc_queue,...
] [
.B \-s {r|p|s|z|hu|ho|hs|hj|ha|h}[+]
] [
.B \-U user,...
]
.\"
.SH DESCRIPTION
.I qselect
prints a list of Grid Engine queue instance names corresponding to
selection criteria specified in the
arguments described below. The output is of limited use since it
comprises queue instances rather than cluster queues or hosts.
.\"
.\"
.SH OPTIONS
.\"
.IP "\fB\-help\fP"
Prints a listing of all options.
.\"
.IP "\fB\-l resource\fP[\fB=value\fP],..."
Defines the resources to be granted by the queues which should be 
included in the queue list output. Matching is performed on 
queues based on non-mutable resource availability information only. 
That means load values are always ignored except the so-called static 
load values listed in
.M load_parameters 5 .
Also consumable utilization is ignored.
If there are multiple \-l resource requests they will be concatenated by
a logical AND: a queue needs to offer all resources to be displayed.
.\"
.IP "\fB\-pe pe_name,...\fP"
Includes queue instances in the output to which are attached at least
one of the parallel environments listed in the comma-separated option
argument.
.\"
.IP "\fB\-q wc_queue,...\fP"
Directly specifies the wildcard expression queue list to be included in the output. 
This option usually is only meaningful in conjunction with another
.I qselect
option to extract a subset of queue names from a list given by \fB\-q\fP.
Description of \fIwc_queue\fP can be found in
.M sge_types 5 .
.\"
.IP "\fB\-qs {a|c|d|o|s|u|A|C|D|E|S}\fP"
This option allows filtering by queue instances in certain states (see
.M qstat 1).
.\"
.IP "\fB\-U user,...\fP"
Includes the queues to which the specified users have access in the
.I qselect 
output.
.\"
.\"
.SH "EXAMPLES"
.nf

=====================================================

% qselect \-l arch=linux
% qselect \-l arch=linux \-U andreas,shannon
% qconf \-mattr queue h_vmem=1GB `qselect \-l arch=linux`

=====================================================

.fi
The first example prints the names of those queues residing on Linux 
machines. The second command in addition restricts the output to those 
queues with access permission for the users
\fIandreas\fP and \fIshannon\fP. The third command changes the queue
attribute \fIh_vmem\fP to 1 Gigabyte on queues residing on Linux machines
(see the
.M qconf 1
manual page for details on the \fI\-mattr\fP option and the
.M queue_conf 5
manual page on details of queue configuration entries).
.\"
.\"
.SH "ENVIRONMENT VARIABLES"
.\" 
.IP "\fBSGE_ROOT\fP" 1.5i
Specifies the location of the Grid Engine standard configuration
files.
.\"
.IP "\fBSGE_CELL\fP" 1.5i
If set, specifies the default Grid Engine cell. To address a Grid Engine
cell
.I qselect
uses (in the order of precedence):
.sp 1
.RS
.RS
The name of the cell specified in the environment 
variable SGE_CELL, if it is set.
.sp 1
The name of the default cell, i.e. \fBdefault\fP.
.sp 1
.RE
.RE
.\"
.IP "\fBSGE_DEBUG_LEVEL\fP" 1.5i
If set, specifies that debug information
should be written to stderr. In addition the level of
detail in which debug information is generated is defined.
.\"
.IP "\fBSGE_QMASTER_PORT\fP" 1.5i
If set, specifies the tcp port on which
.M sge_qmaster 8
is expected to listen for communication requests.
Most installations will use a services map entry for the
service "sge_qmaster" instead to define that port.
.\"
.\"
.SH FILES
.nf
.ta \w'<sge_root>/     'u
\fI<sge_root>/<cell>/common/act_qmaster\fP
	Grid Engine master host file
.fi
.\"
.\"
.SH "SEE ALSO"
.M sge_intro 1 ,
.M qconf 1 ,
.M qmod 1 ,
.M qstat 1 ,
.M queue_conf 5 ,
.\"
.\"
.SH "COPYRIGHT"
See
.M sge_intro 1
for a full statement of rights and permissions.