NAME¶
slurm_create_partition, slurm_create_reservation, slurm_delete_partition,
slurm_delete_reservation, slurm_init_part_desc_msg, slurm_init_resv_desc_msg,
slurm_reconfigure, slurm_shutdown, slurm_takeover, ,slurm_init_update_node_msg
slurm_update_node, slurm_update_partition, slurm_update_reservation - Slurm
administrative functions
SYNTAX¶
#include <slurm/slurm.h>
int
slurm_create_partition (
update_part_msg_t *
update_part_msg_ptr
);
int
slurm_create_reservation (
resv_desc_msg_t *
update_resv_msg_ptr
);
int
slurm_delete_partition (
delete_part_msg_t *
delete_part_msg_ptr
);
int
slurm_delete_reservation (
reservation_name_msg_t *
delete_resv_msg_ptr
);
void
slurm_init_front_end_msg (
update_front_end_msg_t *
update_front_end_msg_ptr
);
void
slurm_init_part_desc_msg (
update_part_msg_t *
update_part_msg_ptr
);
void
slurm_init_resv_desc_msg (
resv_desc_msg_t *
update_resv_msg_ptr
);
void
slurm_init_update_node_msg(
update_node_msg_t *
update_node_msg_ptr
);
int
slurm_reconfigure ( );
int
slurm_shutdown (
uint16_t
shutdown_options
);
int
slurm_takeover ( );
int
slurm_update_front_end (
update_front_end_msg_t *
update_front_end_msg_ptr
);
int
slurm_update_node (
update_node_msg_t *
update_node_msg_ptr
);
int
slurm_update_partition (
update_part_msg_t *
update_part_msg_ptr
);
int
slurm_update_reservation (
resv_desc_msg_t *
update_resv_msg_ptr
);
ARGUMENTS¶
- shutdown_options
- 0: all slurm daemons are shutdown
1: slurmctld generates a core file
2: only the slurmctld is shutdown (no core file)
- delete_part_msg_ptr
- Specifies the pointer to a partition delete request specification. See
slurm.h for full details on the data structure's contents.
- delete_resv_msg_ptr
- Specifies the pointer to a reservation delete request specification. See
slurm.h for full details on the data structure's contents.
- update_front_end_msg_ptr
- Specifies the pointer to a front end node update request specification.
See slurm.h for full details on the data structure's contents.
- update_node_msg_ptr
- Specifies the pointer to a node update request specification. See slurm.h
for full details on the data structure's contents.
- update_part_msg_ptr
- Specifies the pointer to a partition create or update request
specification. See slurm.h for full details on the data structure's
contents.
- update_resv_msg_ptr
- Specifies the pointer to a reservation create or update request
specification. See slurm.h for full details on the data structure's
contents.
DESCRIPTION¶
slurm_create_partition Request that a new partition be created.
Initialize the data structure using the
slurm_init_part_desc_msg
function prior to setting values of the parameters to be changed. Note:
slurm_init_part_desc_msg is not equivalent to setting the data
structure values to zero. A partition name must be set for the call to
succeed. This function may only be successfully executed by user root.
slurm_create_reservation Request that a new reservation be created.
Initialize the data structure using the
slurm_init_resv_desc_msg
function prior to setting values of the parameters to be changed. Note:
slurm_init_resv_desc_msg is not equivalent to setting the data
structure values to zero. The reservation's time limits, user or account
restrictions, and node names or a node count must be specified for the call to
succeed. This function may only be successfully executed by user root.
slurm_delete_partition Request that the specified partition be deleted.
All jobs associated with the identified partition will be terminated and
purged. This function may only be successfully executed by user root.
slurm_delete_reservation Request that the specified reservation be
deleted. This function may only be successfully executed by user root.
slurm_init_update_front_end_msg Initialize the contents of an update
front end node descriptor with default values. Note:
slurm_init_update_front_end_msg is not equivalent to setting the data
structure values to zero. Execute this function before executing
slurm_update_front_end.
slurm_init_part_desc_msg Initialize the contents of a partition
descriptor with default values. Note:
slurm_init_part_desc_msg is not
equivalent to setting the data structure values to zero. Execute this function
before executing
slurm_create_partition or
slurm_update_partition.
slurm_init_resv_desc_msg Initialize the contents of a reservation
descriptor with default values. Note:
slurm_init_resv_desc_msg is not
equivalent to setting the data structure values to zero. Execute this function
before executing
slurm_create_reservation or
slurm_update_reservation.
slurm_init_update_node_msg Initialize the contents of an update node
descriptor with default values. Note:
slurm_init_update_node_msg is not
equivalent to setting the data structure values to zero. Execute this function
before executing
slurm_update_node.
slurm_reconfigure Request that the Slurm controller re-read its
configuration file. The new configuration parameters take effect immediately.
This function may only be successfully executed by user root.
slurm_shutdown Request that the Slurm controller terminate. This function
may only be successfully executed by user root.
slurm_takeover Request that the Slurm primary controller shutdown
immediately and the backup controller take over. This function may only be
successfully executed by user root.
slurm_update_front_end Request that the state of one or more front end
nodes be updated. This function may only be successfully executed by user
root. If used by some autonomous program, the state value most likely to be
used is
NODE_STATE_DRAIN.
slurm_update_node Request that the state of one or more nodes be updated.
Note that the state of a node (e.g. DRAINING, IDLE, etc.) may be changed, but
its hardware configuration may not be changed by this function. If the
hardware configuration of a node changes, update the Slurm configuration file
and execute the
slurm_reconfigure function. This function may only be
successfully executed by user root. If used by some autonomous program, the
state value most likely to be used is
NODE_STATE_DRAIN or
NODE_STATE_FAILING. The node state flag
NODE_STATE_NO_RESPOND
may be specified without changing the underlying node state. Note that the
node's
NODE_STATE_NO_RESPOND flag will be cleared as soon as the slurmd
daemon on that node communicates with the slurmctld daemon. Likewise the state
NODE_STATE_DOWN indicates that the slurmd daemon is not responding (and
has not responded for an interval at least as long as the
SlurmdTimeout
configuration parameter). The node will leave the
NODE_STATE_DOWN state
as soon as the slurmd daemon communicates.
slurm_update_partition Request that the configuration of a partition be
updated. Note that most, but not all parameters of a partition may be changed
by this function. Initialize the data structure using the
slurm_init_part_desc_msg function prior to setting values of the
parameters to be changed. Note:
slurm_init_part_desc_msg is not
equivalent to setting the data structure values to zero. This function may
only be successfully executed by user root.
slurm_update_reservation Request that the configuration of a reservation
be updated. Initialize the data structure using the
slurm_init_resv_desc_msg function prior to setting values of the
parameters to be changed. Note:
slurm_init_resv_desc_msg is not
equivalent to setting the data structure values to zero. This function may
only be successfully executed by user root.
RETURN VALUE¶
On success, zero is returned. On error, -1 is returned, and the Slurm error code
is set appropriately.
Exception: A successful slurm_create_reservation call returns a string
containing the name of the reservation, in memory to be freed by the caller. A
failed call returns NULL and sets the Slurm error code.
ERRORS¶
SLURM_PROTOCOL_VERSION_ERROR Protocol version has changed, re-link your
code.
ESLURM_INVALID_NODE_NAME The requested node name(s) is/are not valid.
ESLURM_INVALID_NODE_STATE The specified state node state or requested
node state transition is not valid.
ESLURM_INVALID_PARTITION_NAME The requested partition name is not valid.
ESLURM_INVALID_AUTHTYPE_CHANGE The
AuthType parameter can not be
changed using the
slurm_reconfigure function, but all SLURM daemons and
commands must be restarted. See
slurm.conf(5) for more information.
ESLURM_INVALID_SCHEDTYPE_CHANGE The
SchedulerType parameter can
not be changed using the
slurm_reconfigure function, but the
slurmctld daemon must be restarted. Manual changes to existing job
parameters may also be required. See
slurm.conf(5) for more
information.
ESLURM_INVALID_SWITCHTYPE_CHANGE The
SwitchType parameter can not
be changed using the
slurm_reconfigure function, but all SLURM daemons
and commands must be restarted. All previously running jobs will be lost. See
slurm.conf(5) for more information.
ESLURM_ACCESS_DENIED The requesting user lacks authorization for the
requested action (e.g. trying to delete or modify another user's job).
SLURM_PROTOCOL_SOCKET_IMPL_TIMEOUT Timeout in communicating with SLURM
controller.
ESLURM_RESERVATION_ACCESS Requestor is not authorized to access the
reservation.
ESLURM_RESERVATION_INVALID Invalid reservation parameter given, e.g.
wrong name given.
ESLURM_INVALID_TIME_VALUE Invalid time value.
ESLURM_RESERVATION_BUSY Reservation is busy, e.g. trying to delete a
reservation while in use.
ESLURM_RESERVATION_NOT_USABLE Reservation not usable, e.g. trying to use
an expired reservation.
EXAMPLE¶
#include <stdio.h>
#include <stdlib.h>
#include <slurm/slurm.h>
#include <slurm/slurm_errno.h>
int main (int argc, char *argv[])
{
update_node_msg_t update_node_msg;
update_part_msg_t update_part_msg;
delete_part_msg_t delete_part_msg;
resv_desc_msg_t resv_msg;
char *resv_name = NULL;
if (slurm_reconfigure ( )) {
slurm_perror ("slurm_reconfigure error");
exit (1);
}
slurm_init_part_desc_msg ( &update_part_msg );
update_part_msg.name = "test.partition";
update_part_msg.state_up = 0; /* partition down */
if (slurm_create_partition (&update_part_msg)) {
slurm_perror ("slurm_create_partition error");
exit (1);
}
update_part_msg.state_up = 1; /* partition up */
if (slurm_update_partition (&update_part_msg)) {
slurm_perror ("slurm_update_partition error");
exit (1);
}
delete_part_msg.name = "test.partition";
if (slurm_delete_partition (&delete_part_msg)) {
slurm_perror ("slurm_delete_partition error");
exit (1);
}
slurm_init_update_node_msg (&update_node_msg);
update_node_msg.node_names = "lx[10-12]";
update_node_msg.node_state = NODE_STATE_DRAIN ;
if (slurm_update_node (&update_node_msg)) {
slurm_perror ("slurm_update_node error");
exit (1);
}
slurm_init_resv_desc_msg ( &resv_msg );
resv_msg.start_time = time(NULL) + 60*60; /* One hour from now */
resv_msg.duration = 720; /* 12 hours/720 minutes */
resv_msg.node_cnt = 10;
resv_msg.accounts = "admin";
resv_name = slurm_create_reservation (&resv_msg);
if (!resv_name) {
slurm_perror ("slurm_create_reservation error");
exit (1);
}
free(resv_name);
exit (0);
}
NOTE¶
These functions are included in the libslurm library, which must be linked to
your process for use (e.g. "cc -lslurm myprog.c").
COPYING¶
Copyright (C) 2002-2007 The Regents of the University of California. Copyright
(C) 2008-2010 Lawrence Livermore National Security. Produced at Lawrence
Livermore National Laboratory (cf, DISCLAIMER). CODE-OCEC-09-009. All rights
reserved.
This file is part of SLURM, a resource management program. For details, see
<
http://slurm.schedmd.com/>.
SLURM is free software; you can redistribute it and/or modify it under the terms
of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
SLURM is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
SEE ALSO¶
scontrol(1),
slurm_get_errno(3),
slurm_init_job_desc_msg(3),
slurm_perror(3),
slurm_strerror(3),
slurm.conf(5)