Weekly SubMIT project team meeting

America/New_York
ZOOM

ZOOM

David Walter (Massachusetts Institute of Technology), Mariarosaria D'Alfonso (Massachusetts Institute of Technology)
    • 10:00 10:20
      Discussion 20m
      Speakers: Alexander Avdoshkin (MIT), David Walter (Massachusetts Institute of Technology), Luca Lavezzo (MIT), Mariarosaria D'Alfonso (Massachusetts Institute of Technology), Matthew Heine (Massachusetts Institute of Technology)

      Wolfram - Matematica

      ( update by David )

      https://cleo.mit.edu/issues/6226

      * David got contacted by 

      * we can use a central licence, users do not need the licence

      * Wolfram udpated on all the login nodes (not only 00) (david)

      * jupiter configuration need to be updated with all the login nodes (Matt)

       

      * future: check the slurm nodes i.e. if users need to send longer jobs on slurm

      * stale: some version is here not used /work/submit/sysadmin/config/submit.mit.edu/

       

      ----------------------

       

      login nodes configuration:

      ( update by David )

       

      * submit00 was often stuck

      * there was a throttling in place that included root and users

              --> root treated separately

              --> removed the throttling, jobs above some quota get killed.

              --> set memory limit 12 GB per user (before there was also a total memory limit)

      * TODO: document this on a cleo ticket

      ----------------------

       

      management network set-up:

      ( update by David )

       

      5 out of 8 login nodes have it

      to update https://github.com/mit-submit/submit-admins-guide/blob/main/source/management_interface.rst

      ( in the future have a uniform password ) 

       

      ----------------------

       

      quotas:

      ( update by David )

       

      new command 'quota -s' so that user can directly query

       

      [mariadlf@submit82 ~]$ quota -s

      Disk quotas for user mariadlf (uid 146312):

           Filesystem   space   quota   limit   grace   files   quota   limit   grace

      submit-filer-02-clus1.mit.edu:/submit_filer_2

                         195G    199G    200G            983k  10000k  11000k

      submit-filer-02-clus1.mit.edu:/submit_filer

                       20253M  20480M  21504M            410k*   400k    500k

       

      ----------------------

      LHCb & xRootD:

      ( update by David )

      https://cleo.mit.edu/issues/6224

      LHCB people want to read from CEPH from xrootD

      --> created a group

      --> can use the address xrootD submit50 ... 59

      ==> in the future get the redirector

       

      ----------------------

       

      Matt:

      1) simplify the script to query users, discussed the old users

      2) alarms: will work on aggregate metrics i.e. how many nodes are out of slurm ... 

      --> later reorganize some alarms in different channels