Implementation of a multi-threaded framework for large-scale scientific applications
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
The CMS experiment has recently completed the development of a multi-threaded capable application framework. In this paper, we will discuss the design, implementation and application of this framework to production applications in CMS. For the 2015 LHC run, this functionality is particularly critical for both our online and offline production applications, which depend on faster turn-around times and a reduced memory footprint relative to before. These applications are complex codes, each including a large number of physics-driven algorithms. While the framework is capable of running a mix of thread-safe and 'legacy' modules, algorithms running in our production applications need to be thread-safe for optimal use of this multi-threaded framework at a large scale. Towards this end, we discuss the types of changes, which were necessary for our algorithms to achieve good performance of our multithreaded applications in a full-scale application. Lastly performance numbers for what has been achieved for the 2015 run are presented.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Grant/Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1249525
- Report Number(s):
- FERMILAB-CONF-15-621-CD; 1372982
- Journal Information:
- Journal of Physics. Conference Series, Vol. 608, Issue 3; Conference: 16th International workshop on Advanced Computing and Analysis Techniques in physics, Prague (Czech Republic), 1-5 Sep 2014; ISSN 1742-6588
- Publisher:
- IOP PublishingCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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