Am 29.08.2013 um 10:41 schrieb Federico Carotenuto: > Kind Reuti, > > the output of which mpicc is that such program may be found in various > packages (which can be installed with apt-get), while which mpiexec outputs > nothing (goes back to the prompt).
You can compile and install Open MPI directly from source - even without being root. You are not limited to what the distribution offers at all. -- Reuti > Seems like no mpicc and mpiexec are set on the system... > > > Reuti <re...@staff.uni-marburg.de> ha scritto: > >> Hi, >> >> Am 26.08.2013 um 18:10 schrieb Federico Carotenuto: >> >>> Kind Reuti, >>> >>> as you suggested I proceeded to install Openmpi 1.6.5 >> >> Good. >> >> >>> and changed the environmental variable MPI_ROOT >> >> No, there is no such variable necessary to be set (at least from Open MPI >> points of view). >> >> >>> to the new folder, should I know source the commands in .bashrc to be sure >>> to be able to execute the right mpirun and mpiexec (something like source >> >> Please check with: >> >> which mpicc >> which mpiexec >> >> which you are using. It's also necessary to recompile the application with >> the new MPI library. >> >> -- Reuti >> >> >>> /home/modelstation/Software/openmpi1.6.5/mpirun, where the directory is the >>> installation directory)? >>> >>> Thanks! >>> >>> Reuti <re...@staff.uni-marburg.de> ha scritto: >>> >>>> Am 26.08.2013 um 14:33 schrieb Federico Carotenuto: >>>> >>>>> Kind Reuti, >>>>> >>>>> I'm start thinking I've got some compilation issue with MPI: I'm afraid >>>>> I've got the MPICH 1 coming with the PGI compiler installation, because >>>>> if I try to run mpiexec the terminal answers with "The program 'mpiexec' >>>>> can be found in the following packages: *lam-runtime *mpich2 *openmpi-bin >>>>> *openmpi1.6-bin. Try: sudo apt-get install <selected package>". >>>>> >>>>> I've also tried to modify the machinefile that comes by default under >>>>> /opt/pgi/linux86-64/13.4/mpi/mpich/share/machinefile.LINUX adding the >>>>> line "modelstation:8", but still mpirun prompts for the password 8 times. >>>> >>>> This was normal at that time: one rsh/ssh per parallel instance. Nowadays >>>> Open MPI and MPICH2/3 will use only one `rsh`/`ssh` per host and start all >>>> other parallel tasks as thread (i.e: on a local machine they don't need a >>>> local `rsh` or `ssh` at all). Although you could either adjust `rsh` to >>>> disregard passwords (deprecated) or route `rsh` to `ssh` and enable >>>> passphraseless login: >>>> >>>> MPICH(1) is outdated (released 2005) and I suggested already to Portland >>>> to exclude it from the package. IMO this adds more confusion than it help. >>>> >>>> Hence, please install a recent version of Open MPI or MPICH2/3 and then we >>>> can look into it again on the appropriate list. >>>> >>>> -- Reuti >>>> >>>> PS: The above mentioned LAM/MPI is outdated too. >>>> >>>> >>>>> Thanks for your help and patience >>>>> >>>>> >>>>> Reuti <re...@staff.uni-marburg.de> ha scritto: >>>>> >>>>>> Am 26.08.2013 um 12:53 schrieb Federico Carotenuto: >>>>>> >>>>>>> Kind Reuti, >>>>>>> >>>>>>> Thanks for your quick reply! >>>>>>> >>>>>>> >>>>>>> I'm afraid I didn't set a machinefile...that may be the problem: I'm >>>>>>> fairly new to MPI and SSH and I'm still quite confused even after >>>>>>> reading some tutorials. >>>>>> >>>>>> There is a default. But you can also specify it on the command line to >>>>>> test it: >>>>>> >>>>>> mpiexec -host modelstation -np 2 mpihello >>>>>> >>>>>> -- Reuti >>>>>> >>>>>> >>>>>>> My etc/hosts contains: 127.0.0.1 localhost and 127.0.1.1 modelstation >>>>>>> (modelstation is the machine name I was mentioning in the previous mail) >>>>>>> >>>>>>> if I type hostname the terminal returns modelstation >>>>>>> >>>>>>> Cheers >>>>>>> >>>>>>> >>>>>>> >>>>>>> Reuti <re...@staff.uni-marburg.de> ha scritto: >>>>>>> >>>>>>>> Am 26.08.2013 um 12:15 schrieb Federico Carotenuto: >>>>>>>> >>>>>>>>> I'm currently having this issue with mpirun: I want to launch a >>>>>>>>> program only on the cores of the local machine, but every time I run >>>>>>>>> an mpi program it says that the host 127.0.0.1 <local_machine_name> >>>>>>>>> with it's associated key is unkown and asks me if I want to add it to >>>>>>>>> the list of ssh known hosts. >>>>>>>>> >>>>>>>>> By chowing/chmodding the .ssh file I was able to permanently add this >>>>>>>>> "host" to the list of known hosts, but my problem is that every >>>>>>>>> program that I try to run ask me to insert a password (the actual >>>>>>>>> local user password) n times where n is equal to the -np parameter >>>>>>>>> (i.e.: if I run the program on 8 cores I receive 8 successive >>>>>>>>> password pronts). >>>>>>>>> >>>>>>>>> If I insert the password everything runs fine, but it's quite >>>>>>>>> annoying and I wish to bypass such step: is there a way to have >>>>>>>>> mpirun memorize the password? Or make him understand that the 8 nodes >>>>>>>>> are actually 8 cores on the local machine and not 8 different hosts? >>>>>>>> >>>>>>>> Which hostname do you specify in your machinefile? >>>>>>>> Which hostnames are set in /etc/hosts for your local machine? >>>>>>>> What is the output of `hostname`? Does it match the one in the >>>>>>>> machinefile? >>>>>>>> >>>>>>>> For systemd there is a new command `hostnamectl --static set-hostname >>>>>>>> [NAME]` to set it. >>>>>>>> >>>>>>>> -- Reuti >>>>>>>> _______________________________________________ >>>>>>>> users mailing list >>>>>>>> us...@open-mpi.org >>>>>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users >>>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> ---------------------------------------------------------------- >>>>>>> This message was sent using IMP, the Internet Messaging Program. >>>>>>> >>>>>>> _______________________________________________ >>>>>>> users mailing list >>>>>>> us...@open-mpi.org >>>>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users >>>>>> >>>>>> _______________________________________________ >>>>>> users mailing list >>>>>> us...@open-mpi.org >>>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users >>>>>> >>>>> >>>>> >>>>> >>>>> ---------------------------------------------------------------- >>>>> This message was sent using IMP, the Internet Messaging Program. >>>>> >>>>> _______________________________________________ >>>>> users mailing list >>>>> us...@open-mpi.org >>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users >>>> >>>> _______________________________________________ >>>> users mailing list >>>> us...@open-mpi.org >>>> http://www.open-mpi.org/mailman/listinfo.cgi/users >>>> >>> >>> >>> >>> ---------------------------------------------------------------- >>> This message was sent using IMP, the Internet Messaging Program. >>> >>> _______________________________________________ >>> users mailing list >>> us...@open-mpi.org >>> http://www.open-mpi.org/mailman/listinfo.cgi/users >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/users >> > > > > ---------------------------------------------------------------- > This message was sent using IMP, the Internet Messaging Program. > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
