Re: [OMPI users] How to paralellize the algorithm...

Dear, It seems to me you are trying to parallelize following a Master/Slave paradigm. Perhaps you may want to take a look and test some existing MPI-based library for achieving that: - DMSM: https://www.hpcvl.org/faqs/dmsm-library - TOP-C: http://www.ccs.neu.edu/home/gene/topc.html - ADLB:

Re: [OMPI users] Checkpointing an MPI application with OMPI

On Wed, Jan 30, 2013 at 3:02 AM, Ralph Castain wrote: > > If your node hardware is the problem, or you decide you do want/need to > pursue an FT solution, then you might look at the OMPI-based solutions from > parties such as http://fault-tolerance.org or the MPICH2 folks. >

Re: [OMPI users] mpirun command gives ERROR

Hi Paul, can you give us some additional information - on your compilation command line ? - the application you're trying to run ? Just in case, did you try checking points 1. and 2. of the error message in the application you're trying to run ? -- Constantinos On Thu, Jul 19, 2012 at

Re: [OMPI users] Beginners Tutorial Link broken

Hi Alexander, Indeed the link is inaccessible. If you try only http://webct.ncsa.uiuc.edu you get redirected to http://www.citutor.org/login.php You need registering to access the tutorial materials. A preview of available materials appears in http://www.citutor.org/browse.php Probably the FAQ

Re: [OMPI users] checkpointing/restart of hpl

Hi, you may start by looking at http://www.open-mpi.org/faq/?category=ft which leads you to https://svn.open-mpi.org/trac/ompi/wiki/ProcessFT_CR and http://osl.iu.edu/research/ft/ompi-cr/ The latter is the most up-to-date link and probably what you are looking for. HTH, -- Constantinos On

Re: [OMPI users] MPI books and resources

You may be interested by : - the MPI Standard (http://www.mpi-forum.org/docs/docs.html) - the book chapter written by J. Squyres in (see http://www.open-mpi.org/community/lists/devel/2012/05/10981.php) and - a Scuba Diving Kit ... to dive into ... open source code :-D -- Constantinos On

Re: [OMPI users] Regarding MPI programming

Assuming the type of the elements in the array is known, you'll probably have to do it in two steps: 1) Broadcast the number of elements in the array 2) Broadcast the array itself HTH, -- Constantinos On Mon, Apr 23, 2012 at 12:41 PM, seshendra seshu wrote: > Hi, > I am

Re: [OMPI users] mpicc command not found - Fedora

On Fri, Mar 30, 2012 at 2:39 PM, Rohan Deshpande wrote: > Hi, > > I do not know how to use *ortecc*. > The same way as mpicc. Actually on my machine they both are symlinks to "opal_wrapper". Your second screenshot suggests orte* commands have been installed. > After looking

Re: [OMPI users] mpicc command not found - Fedora

Hi, Did you try ortecc command directly ? Perhaps the RPM package you're installing does not create symlinks from ortecc to mpicc ... -- Constantinos On Thu, Mar 29, 2012 at 1:45 PM, Rohan Deshpande wrote: > Hi, > > I have installed mpi successfully on fedora using *yum

Re: [OMPI users] mpi & mac

On Tue, Jul 5, 2011 at 9:48 PM, Robert Sacker wrote: > Hi all, > Hello ! > I need some help. I'm trying to run C++ code in Xcode on a Mac Pro Desktop > (OS 10.6) and utilize all 8 cores . My ultimate goal is to be able to run > the code on the cluster here on campus. I'm in the

[OMPI users] Meaning of ./configure --with-ft=LAM option

Hi everyone ! I have started playing a little bit with Open MPI 1.5.3 and came across the " --with-ft=LAM " option in the ./configure script. However, I did not find its meaning anywhere in the doc ... Best regards, -- Constantinos

Re: [OMPI users] Deadlock with barrier und RMA

On Sat, Jun 11, 2011 at 5:17 PM, Ole Kliemann < ole-ompi-2...@mail.plastictree.net> wrote: > On Sat, Jun 11, 2011 at 07:24:24AM -0600, Ralph Castain wrote: > > Oh my - that is such an old version! Any reason for using it instead of > something more recent? > > I'm using the cluster of the

Re: [OMPI users] Test OpenMPI on a cluster

1 where 'machines' is a file containing the names of your nodes (one per line) node063 node064 ... node177 HTH, -- Constantinos Makassikis compile and run: [tim@user1 examples]$ mpicc ./ex1.c -o ex1 [tim@user1 examples]$ qsub e

Re: [OMPI users] Hanging vs Stopping behaviour in communication failures

Jeff Squyres wrote: On Dec 9, 2009, at 3:47 AM, Constantinos Makassikis wrote: sometimes when running Open MPI jobs, the application hangs. By looking the output I get the following error message: [ic17][[34562,1],74][../../../../../ompi/mca/btl/tcp/btl_tcp_frag.c:216:mca_btl_tcp_frag_recv

[OMPI users] Hanging vs Stopping behaviour in communication failures

Dear all, sometimes when running Open MPI jobs, the application hangs. By looking the output I get the following error message: [ic17][[34562,1],74][../../../../../ompi/mca/btl/tcp/btl_tcp_frag.c:216:mca_btl_tcp_frag_recv ] mca_btl_tcp_frag_recv: readv failed: No route to host (113) I

Re: [OMPI users] Changing location where checkpoints are saved

Josh Hursey wrote: (Sorry for the excessive delay in replying) On Sep 30, 2009, at 11:02 AM, Constantinos Makassikis wrote: Thanks for the reply! Concerning the mca options for checkpointing: - are verbosity options (e.g.: crs_base_verbose) limited to 0 and 1 values ? - in priority options

Re: [OMPI users] error in checkpointing an mpi application

Hi, from what you describe below, seems as if you did not configure well OpenMPI. You issued ./configure --with-ft=cr --enable-mpi-threads --with-blcr=/usr/local/bin --with-blcr-libdir=/usr/local/lib while according to the installation paths you gave it should have been more like

Re: [OMPI users] Changing location where checkpoints are saved

-mpi.org/trac/ompi/wiki/ProcessFT_CR Additionally this has been addressed on the users mailing list in the past, so searching around will likely turn up some examples. -- Josh On Sep 18, 2009, at 11:58 AM, Constantinos Makassikis wrote: Dear all, I have installed blcr 0.8.2 and Open MPI

[OMPI users] Changing location where checkpoints are saved

Dear all, I have installed blcr 0.8.2 and Open MPI (r21973) on my NFS account. By default, it seems that checkpoints are saved in $HOME. However, I would prefer them to be saved on a local disk (e.g.: /tmp). Does anyone know how I can change the location where Open MPI saves checkpoints?