Transcript CHEP2015Posterx

The Geant4 physics validation repository
Hans Wenzel, PhD; Julia Yarba, PhD
Fermilab
Abstract
The Geant4 collaboration regularly performs
validation and regression tests where results
obtained with a new Geant4 version are compared
to data from various HEP experiments (validation)
or the results of previous releases (regression). As
the number of regularly performed validation tests
increases and the collection of results grows,
storing them and making them available to the
collaborators and users community becomes a
challenge. We decided to organize the materials in
one central repository and to make them easily
available via a web application. The database is
maintained by the Fermilab database group. The
Web application is running on the Fermilab
FermiCloud Cloud services.
Requirements
• Modern look, meaningful search, easy to navigate
menus.
• Based on modern internet technology and
industry standards.
• Secure.
• Provide repository:
• to store experimental validation data as raw
data,
• to store simulation results as raw data and
as static images.
• Provide display web-applications which:
• allows to select and overlay compatible tests,
• allows to overlay experimental data,
• allows automatic upload into repository,
• allows to display static images,
• provides search functions and easy navigation.
Choice of technology
Relational data base.
Glassfish: Web Application server.
Primefaces JSF based component
framework to create modern looking web
pages and easy to navigate menus.
Integrated Development Environment
Figure 1. Software components.
Software Components
• PostgresSQL relational database: stores both
simulated and experimental data in form of
images with meta data or arrays of raw data
points. The meta data describes the test and lists
the references from where the experimental
data for comparison was obtained from, as well
as other parameters that describe the test (e.g.
beam particle, on the data target material, etc.).
• Java API: based access object (DAO) design
pattern and provides an abstract interface to the
database.
• Web Application: based on Java Platform,
Enterprise Edition (Java EE) is deployed on a
GlassFish Application server. The web application
allows to interactively select and overlay
compatible data. The web application also
provides security and authentication to grant
access to groups of functions and data that are
internal to the Geant4 collaboration, e.g. viewing
results from development releases, upload of
new tests and/or modification of selected tests.
Figures 2-5 show different views provided by the
Web Application. The page shown in:
• Figure 2: allows to select different
experimental data sets and shows the
selected data in one plot,
• Figure 3: allows to select various Geant4
simulations and compares the results to
available experimental data,
• Figure 4: allows to select simulation results
compared to experimental data where the
result is stored as static images in the
database,
• Figure 5: provides database statistics.
Figure 3. Comparison of experimental data (green) with
different Geant4 models.
References
Figure 4. Display of static images with metadata.
Java programming language, Java EE
JFREECHART
Figure 5. Database statistics.
Java library used to create the graphs
Highcharts/jqplot javascript libraries to
dynamically create graphs
Conclusions
We have created a repository to collect and
organize Geant4 validation and regression test
results as well as the experimental data used for
validation. A Web Application allows easy access to
this information for Geant4 collaborators and the
general user community.
Table 1. Technology choice
Primefaces also used by:
Figure 2. Display of experimental data.
Contact
Hans Wenzel
Fermilab PO Box 500, Batavia, IL 60510-5011
Email: [email protected]
Website: http://home.fnal.gov/~wenzel/
Phone: 630 840 6034