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Delbrück Scattering above the Pair Production Threshold: Going beyond the Born Approximation
Annalen der Physik, Volume 536, Issue 3, March 2024.This article presents an accurate approach for the calculation of Delbrück scattering amplitudes above the electron–positron pair production threshold that accounts for the Coulomb interaction with nucleus to all orders in αZ$\alpha Z$. Explicit calculations for the scattering of 2.754 MeV photons by zinc, cerium, lead, and plutonium nuclei are ...
Jonas Sommerfeldt +2 more
wiley +1 more source
Experiences parallelizing a web server with OpenMP [PDF]
, 2008 Multi-threaded web servers are typically parallelized by hand using the pthreads library. OpenMP has rarely been used to parallelize such kind of applications, although we foresee that it can be a great tool for network servers developers.
Alejandro Duran +11 more
core +2 more sources
, 1994 This document describes the interface of the Pthreads library developed at Florida State University. The implementation is based on the standard proposal "POSIX 1003.4a Threads Extension, Draft 6". The implementation is currently limited to the
Frank Mueller
core
Pthreads vs MPI Parallel Performance of Angular-Domain Decomposed S [PDF]
, 2000 Two programming models for parallelizing the Angular Domain Decomposition (ADD) of the discrete ordinates (S{sub n}) approximation of the neutron transport equation are examined.
Azmy, Y. Y., Barnett, D. A.
core
, 1999 This document describes the interface of the Pthreads library developed at Florida State University. The implementation is based on the \POSIX 1003.1c Threads Extension" standard by the IEEE.
Frank Mueller
core
Methods for improving the performance data processing on an example of the task of constructing routes in DTN networks [PDF]
, 2017 The article considers how to speed up data processing in the construction route in DTN network, in particular by applying multi-thread processing using the PHP library “pthreads”, selecting the noSQL MongoDB database and applying additional mathematical ...
Shichkina Yulia +2 more
core +1 more source
Sound static deadlock analysis for C/Pthreads (extended version) [PDF]
, 2016 We present a static deadlock analysis approach for C/pthreads. The design of our method has been guided by the requirement to analyse real-world code. Our approach is sound (i.e., misses no deadlocks) for programs that have defined behaviour according to
Poetzl, Daniel +3 more
core
, 1999 Threads are very small compared with processes, thread creation is relatively cheap in terms of CPU costs. Threads are a powerful tool for designing multi-tasking applications.
Mark Claypool, Bhupesh Kothari
core
Implementation of a type and effect system for deadlock avoidance in C/Pthreads
, 2011 86 σ.Τα συστήματα παράλληλης επεξεργασίας έχουν γνωρίσει ραγδαία ανάπτυξη τις τελευταίες δεκαετίες, η οποία έχει επιδράσει πολλαπλασιαστικά στην υπολογιστική τους ισχύ, αλλά παράλληλα έχει εισαγάγει αρκετές προκλήσεις στον προγραμματισμό τους, μία από ...
Βεκρής, Παναγιώτης Π. +1 more
core +1 more source
Avaliação da plataforma Open MPI para paralelização do processo de compilação de software [PDF]
, 2015 TCC (graduação) - Universidade Federal de Santa Catarina. Campus Araranguá. Curso de Tecnologias da Informação e Comunicação.Os programas de computador estão cada vez maiores e mais complexos, exigindo maior capacidade de processamento do hardware.
Pereira, Filipe Jerônimo
core