Ali Cevahir Akira Nukada Satoshi Matsuoka Fast Conjugate Gradients with Multiple GPUs. 893-903 2009 ICCS (1) http://dx.doi.org/10.1007/978-3-642-01970-8_90 conf/iccS/2009-1 db/conf/iccS/iccS2009-1.html#CevahirNM09