1. ADA analysis transformations
Farida Fassi, Julio Lozano Bahilo IFIC, Valencia-Spain
December 8, 2004 ATLAS
Software Workshop
3 July, 2019

2. Outline Transformation goal and components Transformation steps
Integration within DIAL
Transformation status
3 July, 2019

3. Transformation goal and components
√ The analysis transformation, aodhisto, aims to loop
over the events in an AOD event dataset producing
a Root histogram dataset in the ADA environment.
 The transformation components are the following:
 Input Data:
- AOD datasets supported by the ADA environment
 Analysis algorithm package:
- the UserAnalysis Package provided by Kétévi Assamagan.
- the package is available in CVS, and consists
of a simple Gaudi Algorithm and the AnalysisSkeleton.
- user may implement his/her analysis code within the package.
 A set of bash scripts to build and to run the AOD analysis
package in ATHENA is required.
3 July, 2019

4. Transformation steps
 To satisfy the DIAL strategy the transformation must run in
two steps managed by the scripts mentioned previously.
 Build step:
expands the required directory structure to run
copies the required files (to run the analysis) to the working area
compiles/builds the transformation in the working area
needs to be only called once and dose not require any input data
 Run step:
TestRelease is not needed to run the package
Runs on the output of the build step
Calls the user algorithm for each file to be processed
Produces a set of output files:
AnalysisSkeleton.root, athena.log
Cleans up the working directory
3 July, 2019

5. Integration within DIAL
 The analysis transformation is already integrated with ADA model
 The task file (XML format) associated to the analysis transformation
should carry the following files:
the user analysis algorithm to process the input data
the UserAnalysis_JobOptions.py for the user algorithm
√ User can run an analysis algorithm in ATHENA from a DIAL user
interface/client on a remote machine.
√ User can access to the transformation following the instructions for demo 4, located in this URL:
3 July, 2019

6. Transformation status
√ The analysis transformation is ready for usage
- it makes use of both ATLAS releases and 9.0.2
There are only two AOD file datasets available for analysis
(multi-file datasets will be added soon – David Adams)
√ work is in progress to provide a set of example
task files to enable users either
- to test the system, or
- to use them as a basis for their own analysis algorithm.
3 July, 2019