Provided by: gridengine-client_8.1.9+dfsg-7build1_amd64 
NAME
qhost - show the status of Grid Engine hosts, queues, jobs
SYNTAX
qhost [-F [resource_name,...]] [-help] [-h host_list] [-j] [-l resource[=val],...]
[-ncb] [-u user,...] [-xml]
DESCRIPTION
qhost shows the current status of the available Grid Engine hosts, queues and the jobs
associated with the queues. Selection options allow you to get information about specific
hosts, queues, jobs or users. If multiple selections are done a host is only displayed if
all selection criteria for a host are met. Without any options qhost will display a list
of all hosts without queue or job information.
OPTIONS
-F [resource_name,...]
qhost will present a detailed listing of the current resource availability per host
with respect to all resources (if the option argument is omitted) or with respect
to those resources contained in the resource_name list. Please refer to the
description of the Full Format in section OUTPUT FORMATS below for further detail.
-help Prints a listing of all options.
-h host_list
Prints a list of all hosts contained in host_list.
-j Prints all jobs running on the queues hosted by the shown hosts. This switch calls
-q implicitly.
-l resource[=value],...
Defines the resources to be granted by the hosts which should be included in the
host list output. Matching is performed on hosts based on non-mutable resource
availability information only. That means load values are always ignored except
the so-called static load values listed in load_parameters(5). Also consumable
utilization is ignored. If there are multiple -l resource requests they will be
concatenated by a logical AND: a host needs to match all resources to be displayed.
-ncb This command line switch can be used in order to get 6.2u5 compatible output with
other qhost(1) command line switches. In that case the output of the corresponding
command will suppress information concerning the execution host topology. Note that
this option will be removed in the next major version.
-q Show information about the queues instances hosted by the displayed hosts.
-u user,...
Display information only on those jobs and queues being associated with the users
from the given user list.
-xml This option can be used with all other options and changes the output to XML. The
used schemas are referenced in the XML output. The output is printed to stdout.
If the -xml parameter is combined with -ncb then the XML output will contain 6.2u5
compatible output.
OUTPUT FORMATS
Depending on the presence or absence of the -q or -F and -j option three output formats
need to be differentiated.
Default Format (without -q, -F and -j)
For each host one line is printed. The output consists of consisting of
• the Hostname
• the Architecture.
• the Number of processors.
• the Load.
• the Total Memory.
• the Used Memory.
• the Total Swapspace.
• the Used Swapspace.
More details can be found in load_parameters(5).
If the -q option is supplied, each host status line also contains extra lines for every
queue hosted by the host consisting of,
• the queue name,
• the queue type - one of B(atch), I(nteractive), or a combination thereof,
• the number of reserved (by advance reservation, not resource reservation), used and,
available (according to the queue's slots parameter) job slots,
• the state of the queue - one of u(nknown), a(larm), A(larm), C(alendar suspended),
s(uspended), S(ubordinate), d(isabled), D(isabled), E(rror), (c)configuration
ambiguous, (o)rphaned, (P)reempted, or some combinations thereof. See section "Full
Format" in qstat(1) for explanation of the status flags.
If the -F option was used, resource availability information is printed following the host
status line. For each resource (as selected in an option argument to -F or for all
resources if the option argument was omitted) a single line is displayed with the
following format:
• a one letter specifier indicating whether the current resource availability value was
dominated by either
`g' - a cluster global,
`h' - a host total or
• a second one letter specifier indicating the source for the current resource
availability value, being one of
`l' - a load value reported for the resource,
`L' - a load value for the resource after administrator defined load scaling has been
applied,
`c' - availability derived from the consumable resources facility (see complexes(5)),
`f' - a fixed availability definition derived from a non-consumable complex attribute
or a fixed resource limit.
• after a colon the name of the resource on which information is displayed.
• after an equal sign the current resource availability value.
The displayed availability values and the sources from which they derive are always the
minimum values of all possible combinations. Hence, for example, a line of the form
"qf:h_vmem=4G" indicates that a queue currently has a maximum availability in virtual
memory of 4 Gigabyte, where this value is a fixed value (e.g. a resource limit in the
queue configuration) and it is queue dominated, i.e. the host in total may have more
virtual memory available than this, but the queue doesn't allow for more. Contrarily a
line "hl:h_vmem=4G" would also indicate an upper bound of 4 Gigabyte virtual memory
availability, but the limit would be derived from a load value currently reported for the
host. So while the queue might allow for jobs with higher virtual memory requirements, the
host on which this particular queue resides currently only has 4 Gigabyte available.
After the queue status line (in case of -j) a single line is printed for each job running
currently in this queue. Each job status line contains
• the job ID,
• the job name,
• the job owner name,
• the status of the job - one of t(ransfering), r(unning), R(estarted), s(uspended),
S(uspended) or T(hreshold) (see the Reduced Format section for detailed information),
• the start date and time and the function of the job (MASTER or SLAVE - only meaningful
in case of a parallel job) and
• the priority of the jobs.
ENVIRONMENT VARIABLES
SGE_ROOT Specifies the location of the Grid Engine standard configuration files.
SGE_CELL If set, specifies the default Grid Engine cell. To address a Grid Engine
cell qhost uses (in the order of precedence):
The name of the cell specified in the environment variable SGE_CELL,
if it is set.
The name of the default cell, i.e. default.
SGE_DEBUG_LEVEL
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.
SGE_QMASTER_PORT
If set, specifies the tcp port on which 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.
FILES
<sge_root>/<cell>/common/act_qmaster
Grid Engine master host file
SEE ALSO
sge_intro(1), qalter(1), qconf(1), qhold(1), qmod(1), qstat(1), qsub(1),
load_parameters(5), queue_conf(5), sge_execd(8), sge_qmaster(8), sge_shepherd(8).
COPYRIGHT
See sge_intro(1) for a full statement of rights and permissions.