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5.3 Environment Variables

This topic provides information on the Task Execution environment variables available to customize Nitro's operation.

Valid environment variables:

$NITROJOBID – Job ID of the Nitro job.
$NITROJOBDIR – Job directory to which Nitro writes log files. This directory can be used to store output files from your tasks.
$NITROTASKCORES – Number of cores allocated to the task.
$NITROTASKID – Task ID of the task. The task ID is a number that starts at 1 and increments by 1 for each task definition (valid or invalid) in the task file. Commented and empty lines are not counted; if the task file contains such, the task ID and the line number will diverge.
$NITROTASKMEMORY – Amount of memory (in MB) allocated to the task.
$NITROTASKNAME – Task name, if provided by the task definition.
$NITROTASKTIME – Task time limit, specified by "maxtime" in the task definition.
$NITRO_TASK_FILE – Can be used with normal file names that do not use spaces, but MUST be used if the user submits more than one task file.
$NITRO_LONG_TASK_FILE - Can be used with normal file names that do contain spaces, but MUST be used if the file name contains spaces. This variable can only contain one file name. You cannot submit multiple file names containing spaces.