Oh, thanks. I found that mpich2/gnu supports MPI_THREAD_MULTIPLE by default on my server. So if it supports MPI_THREAD_MULTIPLE, does it mean that I can run the program without segmentation fault (if there is no other bugs ^_^)
> From: jsquy...@cisco.com > To: us...@open-mpi.org > Date: Mon, 28 Sep 2009 11:28:31 -0400 > Subject: Re: [OMPI users] How to create multi-thread parallel program using > thread-safe send and recv? > > On Sep 27, 2009, at 1:45 PM, guosong wrote: > > > Hi Loh, > > I used MPI_Init_thread(&argc,&argv, MPI_THREAD_MULTIPLE, &provided); > > in my program and got provided = 0 which turns out to be the > > MPI_THREAD_SINGLE. Does this mean that I can not use > > MPI_THREAD_MULTIPLE model? > > Correct. > > To get Open MPI to support MPI_THREAD_MULTIPLE, you need to configure > and build it with the --enable-mpi-threads switch to OMPI's ./ > configure script. We don't build MPI_THREAD_MULTIPLE support by > default because it does add some performance overhead. > > -- > Jeff Squyres > jsquy...@cisco.com > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users _________________________________________________________________ Messenger安全保护中心，免费修复系统漏洞，保护Messenger安全！ http://im.live.cn/safe/
