Arslan, Şuayb ŞefikLe, HoaLandman, JosephGoker, Turguy2019-02-282019-02-282019-02-282019-02-282017Arslan, S. S., Le, H., Landman, J., & Goker, T.(2017). OpenMP and POSIX threads Implementation of Jerasure 2.0. Conference: 5th IEEE International Black Sea Conference on Communications and Networking (IEEE BlackSeaCom) Location: Istanbul, TURKEY Date: 2017. p. 167.171.2375-8236https://hdl.handle.net/20.500.11779/706https://doi.org/10.1109/BlackSeaCom.2017.8277690##nofulltext##Şefik Şuayb Arslan (MEF Author)In shared memory multiprocessor architectures, threads can be used to implement parallelism. POSIX threads (pthreads) is a low-level bare-bones programming interface for working with threads. Therefore, we have extremely fine-grained control over thread management (create/join/etc), mutexes, and so on. On the other hand, openMP, as a shared-memory standard, is much higher level and portable interface which makes it easier to use multi-threading capability and obtain satisfactory performance improvements. Since pthreads is more flexible, it helps programmers gain more control on performance optimizations. Jerasure 2.0 erasure coding library has encoding/decoding engines which comprise independent "for" loop iterations and hence possess huge potential for multi-threaded processing. In this short paper, we investigate multi-threaded implementations of encoder/decoder pair of Jerasure 2.0 using two different technologies: OpenMP and pthreads. We constrain our changes to a minimum possible and compare the pure encoding/decoding performance with respect to each other as well as against that of the original single-threaded version by running them on two different server systems.eninfo:eu-repo/semantics/closedAccessPosixReliabilityOpenmpMulti-threadingErasure codingPthreadsConference Object10.1109/BlackSeaCom.2017.82776902-s2.0-85050776001