From: Gaetano Bellanca Newsgroups: comp.parallel.mpi Subject: Help Date: Wed, 16 Jun 1999 17:27:44 +0200 Organization: D.E.I.S. =?iso-8859-1?Q?Universit=E0?= di Ferrara Message-Id: <3767C26F.38A066B4@ing.unife.it> References: <3766832B.56340DAB@t12.lanl.gov> Reply-To: gbellanca@ing.unife.it Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Xref: ukc comp.parallel.mpi:5207 Hi, I'm sorry if my question is stupid, but I'm rather unexpert in parallel computing. I have a software for electromagnetic simulations of microwave ovens working on both CRAY-T3E and PC cluster (os Linux). The parallel implementation uses MPI. Running a simulation, for the same data, I'm having correct results on the two architecture for 1,2 and 3 PEs but, running for more than 3, only on the PC cluster, I have the message: p1_20859: p4_error: interrupt SIGFPE: 8 rm_l_1_20860: p4_error: interrupt SIGINT: 2 P4 procgroup file is insieme.pg. p2_6397: (518511.412711) Trying to receive a message when there are no connections; Bailing out bm_list_10927: p4_error: net_recv read: probable EOF on socket: 1 p0_10583: (372732.502980) Trying to receive a message when there are no connections; Bailing out P4 procgroup file is insieme.pg. The simulation on the CRAY produces correct results! Any suggestion? Thank in advance Gaetano -- ___[_____]___ (.) (.) (_) --------------------o00O-------O00o------------------- +---------------------------------------------------------------------+ | Gaetano Bellanca | | Dipartimento di Ingegneria - University of Ferrara | | Via Saragat, 1 - 44100 - Ferrara - ITALY | | Phone : +39 0532 29.38.38 Fax : +39 0532 76.86.02 | | | | mailto:gbellanca@ing.unife.it | | | | D.E.I.S. - Dipartimento di Elettronica, Informatica e Sistemistica. | | University of Bologna. | | Viale Risorgimento, 2 - 40136 - Bologna - ITALY | | |