\input zb-basic \input zb-ioport \iteman{io-port 06104332} \itemau{Pilarek, Mariusz; Wyrzykowski, Roman} \itemti{Solving systems of interval linear equations in parallel using multithreaded model and ``Interval extended zero'' method.} \itemso{Wyrzykowski, Roman (ed.) et al., Parallel processing and applied mathematics. 9th international conference, PPAM 2011, Torun, Poland, September 11--14, 2011. Revised selected papers, Part I. Berlin: Springer (ISBN 978-3-642-31463-6/pbk). Lecture Notes in Computer Science 7203, 206-214 (2012).} \itemab Summary: In this paper, an approach to the solution of systems of interval linear equations with the use of the parallel machines is presented, based on parallel multithreaded model and ``interval extended zero'' method. This approach not only allows us to decrease the undesirable excess width effect, but makes it possible to avoid the inverted interval solutions too. The efficiency of this method has been already proved for non-parallel systems. Here it is shown that it can be also used to perform efficient calculations on parallel machines using the multithreaded model. \itemrv{~} \itemcc{} \itemut{} \itemli{doi:10.1007/978-3-642-31464-3\_21} \end