IBM::LoadLeveler - Perl access to IBM LoadLeveler

Configuration API

2007-09-21T11:05:58-04:00

# Configuration API $rc=ll_config_changed(); $rc=ll_read_config(); The Configuration API has the following functions: * * ll_config_changed This routine shows if the config files have changed since they where last read. Returns: 0 : The files have not changed 1 : A configuration file has changed

Data Access API

2008-07-21T17:41:18-04:00

Error Handling API

2007-07-09T11:12:25-04:00

# Error API ll_error($errObj,1 | 2 ); or ll_error(1 | 2); The error handling API takes an error object and prints an error message, the location depends on the parameter * 1 - print error message to stdout * 2 - print error message to stderr * Any other value - no error message printed

Fair Share Scheduling API

2007-09-21T08:03:21-04:00

Fair Share Scheduling API $rc=ll_fair_share(FAIR_SHARE_RESET|FAIR_SHARE_SAVE,$savedir,$savefile); This routine differs from the C API by not using the LL_fair_share_param structure but instead taking all the parameters as input. Parameters Parameter Description$savedir A directory to be used for saving a snapshot of data, used by FAIR_SHARE_SAVE$savefile A previously saved file of data, used by FAIR_SHARE_RESET

IBM::LoadLeveler - Perl access to IBM LoadLeveler Workload Management System

2008-09-21T05:54:44-04:00

IBM::LoadLeveler is a Perl interface to the IBM LoadLeveler work load management system. Documentation on the system can be found at . The module is not for the faint hearted, the Data Access API can return several hundered parameters, I strongly advise you print out the IBM documentation, especially the very useful ”LoadLeveler Job Object Model” diagram.

Data Access API - Changes

2010-06-07T16:26:01-04:00

Data Access API - Changes Below is a list of changes made to ll_get_data, I believe it is reasonably accurate, but there are problems with it. IBM does at times back port functionality, so some parameters seem to bounce in and out of the llapi.h at random. LL_StepDependency is a good example, it is in versions 3.1.0.31, 3.1.0.32, 3.2.0.16, 3.2.0.17, 3.2.0.18 & 3.3.0.3+, which frankly is down right annoying if you are trying to use #ifdefs.

Query API

2007-09-21T08:04:47-04:00

SYNOPSIS # Query API functions my ($version_num,$numnodes,$noderef)=ll_get_nodes(); my ($version_num,$numjobs,$ref)=ll_get_jobs(); DESCRIPTION The Query API has been deprecated by IBM. The Query API has the following functions: * * The functions ll_free_jobs and ll_free_nodes are not provided to Perl, they are called inside the ll_get_jobs/ll_get_nodes code after the data has been converted to perl functions.

IBM::LoadLeveler Reservation API

2009-10-22T08:28:43-04:00

# Reservation API $resid = ll_make_reservation($start_time,$duration,RESERVATION_BY_NODE| RESERVATION_BY_HOSTLIST| RESERVATION_BY_JOBSTEP| RESERVATION_BY_JCF, $data,$options,\@users, \@groups,$group); $result = ll_change_reservation($ID,\%para…

sidebar

2007-09-21T09:24:59-04:00

* Introduction * LoadLeveler Versions * Build/Installation * Building for Linux on PowerPC * Known Problems * 64 bit types and 32 bit perl * QUERY_PROCID * Large History files * External Links * Credits * Data Access API * Fair Share Scheduling API * Query API * Submit API * Reservation API * Workload Management API * Error Handling API * Configuration API

Submit API

2007-09-14T07:50:41-04:00

SYNOPSIS use IBM::Loadleveler # Submit API function $job_name,$owner,$groupname,$uid,$gid,$submit_host,$numsteps,$ref)=llsubmit($job_cmd_file,$monitor_program, $monitor_args);

IBM::LoadLeveler Workload Management API

2007-09-23T11:14:13-04:00