NAME

       drmaa_job_ps, drmaa_control, - Monitor and control jobs

SYNOPSIS

       #include "drmaa.h"

       int drmaa_job_ps(
              const char *job_id,
              int *remote_ps,
              char *error_diagnosis,
              size_t error_diag_len
       );

       int drmaa_control(
              const char *jobid,
              int action,
              char *error_diagnosis,
              size_t error_diag_len
       );

DESCRIPTION

       The  drmaa_job_ps()  function  returns  the  status of the Grid Engine job job_id into the
       integer  pointed  to  by  remote_ps.  Possible  return  values  are  listed  below.    See
       sge_status(5) for the correspondence between them and the Grid Engine status.

              DRMAA_PS_UNDETERMINED            job status cannot be determined
              DRMAA_PS_QUEUED_ACTIVE           job is queued and active
              DRMAA_PS_SYSTEM_ON_HOLD          job is queued and in system hold
              DRMAA_PS_USER_ON_HOLD            job is queued and in user hold
              DRMAA_PS_USER_SYSTEM_ON_HOLD     job is queued and in user and system hold
              DRMAA_PS_RUNNING                 job is running
              DRMAA_PS_SYSTEM_SUSPENDED        job is system suspended
              DRMAA_PS_USER_SUSPENDED          job is user suspended
              DRMAA_PS_DONE                    job finished normally
              DRMAA_PS_FAILED                  job finished, but failed

       Jobs'  user  hold  and  user  suspend  states can be controlled via drmaa_control(3).  For
       affecting system hold and system suspend states the  appropriate  Grid  Engine  interfaces
       must be used.

   drmaa_control()
       The  drmaa_control()  function  applies control operations on Grid Engine jobs.  jobid may
       contain either an Grid Engine jobid or `DRMAA_JOB_IDS_SESSION_ALL' to refer  to  all  jobs
       submitted  during  the  DRMAA session opened using drmaa_init(3).  Legal values for action
       and their meanings are:

              DRMAA_CONTROL_SUSPEND       suspend the job
              DRMAA_CONTROL_RESUME        resume the job
              DRMAA_CONTROL_HOLD          put the job on-hold
              DRMAA_CONTROL_RELEASE       release the hold on the job
              DRMAA_CONTROL_TERMINATE     kill the job

       The DRMAA suspend/resume operations are equivalent to the use of -sj jobid and  -usj jobid
       options with Grid Engine qmod(1).  The DRMAA hold/release operations are equivalent to the
       use of Grid Engine qhold(1) and qrls(1).  The DRMAA terminate operation is  equivalent  to
       the  use  of  Grid  Engine qdel(1).  Only user hold and user suspend can be controlled via
       drmaa_control(3).  For affecting system hold and system  suspend  states  the  appropriate
       Grid Engine interfaces must be used.

ENVIRONMENTAL VARIABLES

       SGE_ROOT       Specifies the location of the Grid Engine standard configuration files.

       SGE_CELL       If  set,  specifies  the  default Grid Engine cell to be used. To address a
                      Grid Engine cell Grid Engine uses (in the order of precedence):

                             The name of the cell specified in the environment variable SGE_CELL,
                             if it is set.

                             The name of the default cell, i.e. default.

       SGE_DEBUG_LEVEL
                      If  set,  specifies  that debug information should be written to stderr. In
                      addition the level of detail in which debug  information  is  generated  is
                      defined.

       SGE_QMASTER_PORT
                      If  set,  specifies  the  tcp  port  on which sge_qmaster(8) is expected to
                      listen for communication requests.  Most installations will use a  services
                      map entry instead to define that port.

RETURN VALUES

       Upon     successful     completion,    drmaa_job_ps(),    and    drmaa_control()    return
       DRMAA_ERRNO_SUCCESS. Other values indicate an error. Up to  error_diag_len  characters  of
       error related diagnosis information is then provided in the buffer, error_diagnosis.

ERRORS

       The drmaa_job_ps() and drmaa_control() functions may fail with:

       DRMAA_ERRNO_INTERNAL_ERROR
              Unexpected or internal DRMAA error, like system call failure, etc.

       DRMAA_ERRNO_DRM_COMMUNICATION_FAILURE
              Could not contact DRM system for this request.

       DRMAA_ERRNO_AUTH_FAILURE
              The specified request was not processed successfully due to authorization failure.

       DRMAA_ERRNO_INVALID_ARGUMENT
              The input value for an argument is invalid.

       DRMAA_ERRNO_NO_ACTIVE_SESSION
              Failed because there is no active session.

       DRMAA_ERRNO_NO_MEMORY
              Failed allocating memory.

       DRMAA_ERRNO_INVALID_JOB
              The specified job does not exist.

       The drmaa_control() function may fail with:

       DRMAA_ERRNO_RESUME_INCONSISTENT_STATE
              The job is not suspended. The resume request will not be processed.

       DRMAA_ERRNO_SUSPEND_INCONSISTENT_STATE
              The job is not running and thus cannot be suspended.

       DRMAA_ERRNO_HOLD_INCONSISTENT_STATE
              The job cannot be moved to a hold state.

       DRMAA_ERRNO_RELEASE_INCONSISTENT_STATE
              The job is not in a hold state.

SEE ALSO

       drmaa_submit(3), drmaa_wait(3), sge_status(5).