status: In development
last update: 27 January 2015

This page is a record of the configuration and execution of the P302 reprocessing project, generation FITS files from the P301 MERIT files.

Notice: there is now a JIRA for this task.  Please check here for operational notes.

Pipeline tasks

• P302-FITS - This task reads new P301 MERIT and produces fits files, FT1 + LS1 + EXTENDEDFT1 + EXTENDEDLS1

Datafile names, versions and locations

Data file version numbers for this reprocessing will begin with v302.

XROOT location and file naming

Location template:

/glast/Data/Flight/Reprocess/<reprocessName>/<dataType>

Locations for P302:

/glast/Data/Flight/Reprocess/P302/ft1
/glast/Data/Flight/Reprocess/P302/extendedft1
/glast/Data/Flight/Reprocess/P302/ls1
/glast/Data/Flight/Reprocess/P302/extendedls1

File naming:

Note: 'procVer' is a field added to the file name (and the keyword "PROC_VER" in the primary header) added to the FFD 5/12/2010. Ref: http://fermi.gsfc.nasa.gov/ssc/dev/current_documents/Science_DP_FFD_RevA.pdf

Example:

/glast/Data/Flight/Reprocess/P302/recon/r0239557414_v302_merit.root

DataCatalog location and naming

Logical directory and group template:

Data/Flight/Reprocess/<reprocessName>:<dataType>

Note that the <dataType> field (following the colon) is a DataCatalog 'group' name, and file names are of the form r<run#>.

Naming examples:

Data/Flight/Reprocess/P302:MERIT r0239557414

Data Sample

The currently defined data sample (as of 1/16/2015) for P302 reprocessing includes:

Bookkeeping

1. (This page): Define ingredients of reprocessing (processing code/configuration changes)
2. Processing History database: http://glast-ground.slac.stanford.edu/HistoryProcessing/HProcessingRuns.jsp?processingname=P302
   1. List of all reprocessings
   2. List of all data runs reprocessed
   3. Pointers to all input data files (-> dataCatalog)
   4. Pointers to associated task processes (-> Pipeline II status)
3. Data Catalog database: http://glast-ground.slac.stanford.edu/DataCatalog/folder.jsp
   1. Lists of and pointers to all output data files
   2. Meta data associated with each output data product

P302-FITS

This task generates all desired FITS data products.

• A slightly updated task structure has been implemented for this task: the mergeClumps step is now a separate subTask which allows overriding the batch queue parameter for extra long runs.  This restructuring required quite a lot of modification related to data passed between job steps (as now certain job steps are in the new subTask). 
• Task stored in my github as P302-FITS

Status chronology

This task basically mirrors the P301-FITS task but updating certain packages and expanding the generated data products to include FT1 and LS1.

Please see the associated JIRA for operational notes.

• 1/27/2015 - Completed block 1, through 30 Sep 2014

• 2/17/2015 - Rerun stream 29158, Run 405333211, after Warren revises the FT2 file – which adds back the final 10 minutes of this run.  (Jean Ballet found this problem.)

• 2/18/2015 - Completed block 2, through 31 Jan 2015

• 3/9/2015 - Create P302-FITS v 2.0 task.  The only difference is changing evtClassDefs from 01--01--01 to 01--01–04 which updates event selection to eliminate sweep and periodic trigger events.  (This was discovered by Don Horner at FSSC as duplicate (sweep) events in files transferred there a couple weeks ago.)
    Begin processing entire mission once again...

•  3/11/2015 Reprocessing complete.  New Datacatalog summary:
   

  Name	Type	Files	Events	Size	Created (UTC)	Links
  EXTENDEDFT1	Group	36020	14,613,584,327	1.3 TB	21-Jan-2015 20:32:16	Files
  EXTENDEDLS1	Group	36020	14,613,504,070	2.7 TB	21-Jan-2015 20:32:16	Files
  FT1	Group	36020	740,187,922	68.6 GB	21-Jan-2015 20:32:16	Files
  LS1	Group	36020	1,956,117,915	376.5 GB	21-Jan-2015 20:32:16	Files

  Problem with xFT1 and xLS1 files: #evts should be identical.  After studying logs, decide there must be a silent failure mode to gtmktime.  Rollback and now the statistics look like this:
   

  Name	Type	Files	Events	Size	Created (UTC)	Links
  EXTENDEDFT1	Group	36020	14,613,589,234	1.3 TB	21-Jan-2015 20:32:16	Files
  EXTENDEDLS1	Group	36020	14,613,589,234	2.7 TB	21-Jan-2015 20:32:16	Files
  FT1	Group	36020	740,188,083	68.6 GB	21-Jan-2015 20:32:16	Files
  LS1	Group	36020	1,956,127,293	376.5 GB	21-Jan-2015 20:32:16	Files

Configuration

Generation of output data products:

[1] /afs/slac/g/glast/ground/releases/volume04/evtClassDefs/01-01-00/data

Note on 'Code Variant': The SLAC batch farm contains a mixture of architectures , both hardware (Intel/AMD 64-bit) and software (RHEL5-64, gcc v4.1, etc.). At this time, GlastRelease builds only on RHEL5-32 (RHEL6-64 are built but not yet validated), while ScienceTools builds for RHEL5-64, RHEL6-64.

Timing and Scaling

Approx 20 CPU minutes and 30 wall clock minutes per job (run).