Process checkpoint-restart is a technology with great potential for use in HEP workflows. Use cases include debugging, reducing the startup time of applications both in offline batch jobs and the High Level Trigger, permitting job preemption in environments where spare CPU cycles are being used opportunistically and efficient scheduling of a mix of multicore and single-threaded jobs. We report on tests of checkpoint-restart technology using CMS software, Geant4-MT (multi-threaded Geant4), and the DMTCP (Distributed Multithreaded Checkpointing) package. We analyze both single- and multi-threaded applications and test on both standard Intel x86 architectures and on Intel MIC. The tests with multi-threaded applications on Intel MIC are used to consider scalability and performance. These are considered an indicator of what the future may hold for many-core computing.
|Original language||English (US)|
|Journal||Journal of Physics: Conference Series|
|State||Published - 2014|
|Event||15th International Workshop on Advanced Computing and Analysis Techniques in Physics Research, ACAT 2013 - Beijing, China|
Duration: May 16 2013 → May 21 2013
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)