From: Thomas Fuerle Newsgroups: comp.parallel.mpi Subject: Re: Start Threads in MPI Date: Tue, 15 Sep 1998 13:15:50 +0200 Organization: Vienna University, Austria Message-Id: <35FE4C66.B8080E64@vipios.pri.univie.ac.at> References: <35EFE6EF.F62842F7@csis.hku.hk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Zheng Yu Liang wrote: > Hi, > > We need start some p_threads in mpi process. But when we start mpi with > two nodes , only process 0 enter the first thread and halt when the > thread return . Anyone know why? And can I call a mpi method in a > thread? > > Our workstation is SMP with Linux 2.0.x , and mpich 1.1.0. Following is > our program: > Hi, i'm fighting with the some similar problems in Linux. I use now SIGUSR2 instead of SIGUSR1 in mpich 1.1.1 and if the below output is the right output, we made it. vipios3:[pthreads] >./postings MPI_Init finish pthread_init finish thread computation finish process end process end Number of Threads = 2 Estimation of pi is 3.141593 Execution time = 296 clocks p0_5863: p4_error: interrupt SIGSEGV: 11 vipios3:[pthreads] >mpirun -np 2 postings MPI_Init finish pthread_init finish thread computation finish process end process end Number of Threads = 2 Estimation of pi is 6.283185 Execution time = 596 clocks MPI_Init finish pthread_init finish thread computation finish process end process end p1_5948: p4_error: interrupt SIGSEGV: 11 p0_5944: p4_error: interrupt SIGSEGV: 11 vipios3:[pthreads] > Regards, Tom -- Thomas Fuerle mailto:fuerle@vipios.pri.univie.ac.at http://vipios.pri.univie.ac.at Institute for Applied Computer Science and Information Systems University of Vienna, Rathausstr. 19/4, A-1010 Vienna, Austria Tel: +43 1 4277 38423 "Don't hate yourself in the morning -- sleep till noon."