scholarly journals Programowanie wielowątkowe w językach strukturalnych i obiektowych

2019 ◽  
Vol 10 ◽  
pp. 49-53
Author(s):  
Mateusz Wiśniewski
Keyword(s):  
Posix Threads

W artykule przedstawiono sposoby programowania wielowątkowego w wybranych językach programowania takich jak: C podejście strukturalne oraz obiektowe C++ przy użyciu bibliotek Posix Threads dla języka C oraz bibliotekę Boost dla języka C++. Opisano również charakterystykę wybranych bibliotek. Przedstawiono przykładowe rozwiązania typowych problemów programistycznych wykorzystujących wątki. Starano odpowiedzieć na pytanie czym kierować się przy wyborze języka do nauki programowania wielowątkowego oraz programowania w ogólnym tego słowa znaczeniu.

POSIX Threads (Pthreads)

2011 ◽  
pp. 1592-1593
Author(s):  
Bruce Leasure ◽  
David J. Kuck ◽  
Sergei Gorlatch ◽  
Murray Cole ◽  
Gregory R. Watson ◽  
...  
Keyword(s):  
Posix Threads

scholarly journals Parallel real-world LU decomposition: Gauss vs. Crout algorithm

2018 ◽  
Vol 8 (1) ◽  
pp. 210-217
Author(s):  
Marek Stabrowski
Keyword(s):  
Real World ◽  
Numerical Experiments ◽  
Matrix Decomposition ◽  
Decomposition Algorithms ◽  
Density Matrices ◽  
Hardware Platform ◽  
Posix Threads ◽  
Real World Applications ◽  
Matrix Decomposition Algorithms ◽  
Algorithm Implementation

Abstract This paper presents numerical experiments with assorted versions of parallel LU matrix decomposition algorithms (Gauss and Crout algorithm). The tests have been carried out on the hardware platform with fourcore Skylake processor featuring hyperthreading technology doubling virtually core number. Parallelization algorithms have been implemented with the aid of classic POSIX threads library. Experiments have shown that basic 4-thread acceleration of all parallel implementations is almost equal to the number of threads/processors. Both algorithms are worth considering in real-world applications (Florida University collection). Gauss algorithm is a better performer, with respect to timing, in the case of matrices with lower density of nonzeros, as opposed to higher density matrices. The latter are processed more efficiently with the aid of Crout algorithm implementation.

Using POSIX threads to implement Ada tasking

1992 ◽  
Author(s):  
E. W. Giering ◽  
T. P. Baker
Keyword(s):  
Posix Threads

An implementation of the SANE Virtual Processor using POSIX threads

2009 ◽  
Vol 55 (3) ◽  
pp. 162-169 ◽  
Author(s):  
M.W. van Tol ◽  
C.R. Jesshope ◽  
M. Lankamp ◽  
S. Polstra
Keyword(s):  
Posix Threads ◽  
Virtual Processor

OpenMP and POSIX threads implementation of Jerasure 2.0

2017 ◽  
Author(s):  
Suayb S. Arslan ◽  
Hoa Le ◽  
Joseph Landman ◽  
Turguy Goker
Keyword(s):  
Posix Threads

POSIX threads polynomials(PTPol)

2007 ◽  
Author(s):  
Mohab Safey El Din ◽  
Philippe Trébuchet
Keyword(s):  
Posix Threads

scholarly journals An implementation of ray tracing algorithm for the multiprocessor machines

2006 ◽  
Vol 16 (1) ◽  
pp. 125-135 ◽  
Author(s):  
Aleksandar Samardzic ◽  
Dusan Starcevic ◽  
Milan Tuba
Keyword(s):  
Parallel Algorithm ◽  
Ray Tracing ◽  
Shared Memory ◽  
Parallel Machines ◽  
Lighting Condition ◽  
Posix Threads ◽  
Scene Description ◽  
Tracing Algorithm

Ray Tracing is an algorithm for generating photo-realistic pictures of the 3D scenes, given scene description, lighting condition and viewing parameters as inputs. The algorithm is inherently convenient for parallelization and the simplest parallelization scheme is for the shared-memory parallel machines (multiprocessors). This paper presents two implementations of the algorithm developed by the authors for alike machines, one using the POSIX threads API and another one using the OpenMP API. The paper also presents results of rendering some test scenes using these implementations and discusses our parallel algorithm version efficiency.

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