[CentOS] Anyone know anything about slurm on CentOS 7?

The recently-left programmer did *something*, and he didn't know what, and
the guy who picked it up is working with me to find out why
/var/log/messages is getting flooded with
Oct 26 11:01:06 <servername> kernel: type=1105
audit(1477494066.569:642430): pid=108551 uid=0 auid=4294967295
ses=4294967295 subj=system_u:system_r:unconfined_service_t:s0
msg='op=PAM:session_open
grantors=pam_keyinit,pam_keyinit,pam_limits,pam_systemd,pam_unix,pam_krb5,pam_xauth
acct="<user>" exe="/usr/bin/su" hostname=? addr=? terminal=? res=success'
Oct 26 11:01:06 <servername> kernel: type=1106
audit(1477494066.620:642431): pid=108548 uid=0 auid=4294967295
ses=4294967295 subj=system_u:system_r:unconfined_service_t:s0
msg='op=PAM:session_close
grantors=pam_keyinit,pam_keyinit,pam_limits,pam_systemd,pam_unix,pam_krb5,pam_xauth
acct="<user>" exe="/usr/bin/su" hostname=? addr=? terminal=? res=success'
Oct 26 11:01:06 <servername> kernel: type=1104
audit(1477494066.620:642432): pid=108548 uid=0 auid=4294967295
ses=4294967295 subj=system_u:system_r:unconfined_service_t:s0
msg='op=PAM:setcred grantors=pam_rootok acct="<user>" exe="/usr/bin/su"
hostname=? addr=? terminal=? res=success'

Oct 26 11:01:11 <servername> su: (to <user>) root on none
Oct 26 11:01:11 <servername> su: (to <user>) root on none
Oct 26 11:01:11 <servername> systemd: Started Session c21839 of user <user>.

Other folks can submit jobs to slurm, and we don't get anything like this.

Feel free to contact me offlist....

      mark
Oct 26 11:01:11 <servername> systemd: Starting Session c21839 of user <user>.