| commit | 951427ba709f7082124e31bb6d41b79d9219bcd4 | [log] [tgz] |
|---|---|---|
| author | Megan Dahl <megan@schedmd.com> | Fri Aug 29 15:18:46 2025 -0600 |
| committer | Danny Auble <da@schedmd.com> | Wed Sep 03 13:31:20 2025 -0600 |
| tree | 420ccf65ad0eac1cc92c5ea44250bf785446dc6c | |
| parent | cc92ce5f58879399309fea3f548e387252ee9bee [diff] |
slurmctld - Prevent reserved gres from being used by the wrong jobs Before it was possible for the gres in a reservation to be used by a job not requesting the reservation. This was because reservations reserve a specific gres bit, but sock_gres->bits_any_sock's bitmap still included all the gres bits, even those allocated to reservations. Additionally, before it was possible for a job requesting the reservation to be allocated a gres bit that was not reserved due to the same reason. This modifies _handle_gres_exc_bit_and_not(), now renamed to _handle_gres_exc_bit_restrict(), so that now in the case of resv_exc_ptr->gres_js_inc the bits_by_sock bitmap is restricted to only gres bits in the reservation. This function is now also called on sock_gres->bits_any_sock in the case no core topology is defined, which can be the case for gres with a type defined. Ticket: 21862 Changelog: slurmctld - Fix how gres with cores or a type defined are selected to prevent jobs not using reservations from being allocated reserved gres and vice versa.
This is the Slurm Workload Manager. Slurm is an open-source cluster resource management and job scheduling system that strives to be simple, scalable, portable, fault-tolerant, and interconnect agnostic. Slurm currently has been tested only under Linux.
As a cluster resource manager, Slurm provides three key functions. First, it allocates exclusive and/or non-exclusive access to resources (compute nodes) to users for some duration of time so they can perform work. Second, it provides a framework for starting, executing, and monitoring work (normally a parallel job) on the set of allocated nodes. Finally, it arbitrates conflicting requests for resources by managing a queue of pending work.
The official issue tracker for Slurm is at
: https://support.schedmd.com/
We welcome code contributions and patches, but we do not accept Pull Requests through Github at this time. Please submit patches as attachments to new issues under the "C - Contributions" severity level.
The top-level distribution directory contains this README as well as other high-level documentation files, and the scripts used to configure and build Slurm (see INSTALL). Subdirectories contain the source-code for Slurm as well as a test suite and further documentation. A quick description of the subdirectories of the Slurm distribution follows:
src/ [ Slurm source ]
: Slurm source code is further organized into self explanatory subdirectories such as src/api, src/slurmctld, etc.
doc/ [ Slurm documentation ]
: The documentation directory contains some latex, html, and ascii text papers, READMEs, and guides. Manual pages for the Slurm commands and configuration files are also under the doc/ directory.
etc/ [ Slurm configuration ]
: The etc/ directory contains a sample config file, as well as some scripts useful for running Slurm.
slurm/ [ Slurm include files ]
: This directory contains installed include files, such as slurm.h and slurm_errno.h, needed for compiling against the Slurm API.
testsuite/ [ Slurm test suite ]
: The testsuite directory contains an extensive collection of tests written for Check, Expect and Pytest.
auxdir/ [ autotools directory ]
: Directory for autotools scripts and files used to configure and build Slurm
contribs/ [ helpful tools outside of Slurm proper ]
: Directory for anything that is outside of slurm proper such as a different api or such. To have this build you need to do a make contrib/install-contrib.
Please see the instructions at
: https://slurm.schedmd.com/quickstart_admin.html
Extensive documentation is available from our home page at
: https://slurm.schedmd.com/slurm.html
Slurm is provided "as is" and with no warranty. This software is distributed under the GNU General Public License, please see the files COPYING, DISCLAIMER, and LICENSE.OpenSSL for details.