\input zb-basic \input zb-ioport \iteman{io-port 05941158} \itemau{De Donno, Danilo; Esposito, Alessandra; Monti, Giuseppina; Tarricone, Luciano} \itemti{Iterative solution of linear systems in electromagnetics (and not only): Experiences with CUDA.} \itemso{Guarracino, Mario R. (ed.) et al., Euro-Par 2010 parallel processing workshops. HeteroPar, HPCC, HiBB, CoreGrid, UCHPC, HPCF, PROPER, CCPI, VHPC. Ischia, Italy, August 31 -- September 3, 2010. Revised selected papers. Berlin: Springer (ISBN 978-3-642-21877-4/pbk). Lecture Notes in Computer Science 6586, 329-337 (2011).} \itemab Summary: In this paper, we propose the use of graphics processing units as a low-cost and efficient solution of electromagnetic (and other) numerical problems. Based on the software platform CUDA (Compute Unified Device Architecture), a solver for unstructured sparse matrices with double precision complex data has been implemented and tested for several practical cases. Benchmark results confirm the validity of the proposed software in terms of speed-up, speed and GPU execution time. \itemrv{~} \itemcc{} \itemut{linear system; GPU; CUDA; biconjugate gradient; BiCG} \itemli{doi:10.1007/978-3-642-21878-1\_41} \end