Academy for Economic Studies, Bucharest,Romania

Parallel implementation of the dense linear algebra operations is a well understood process but the availability of high performance, general purpose parallel dense linear algebra libraries is limited by the complexity of implementation. This paper describe PLSS – (Parallel Linear System Solver)- a library which provides routines for linear system solving with an interface easy to use, close to the natural description of sequential linear algebra algorithms. PLSS was developed in C using the MPI library for communication and the BLAS library for local computations. PLSS implements direct methods for dense linear systems, based on LU and Cholesky factorizations