LAM(1)                           LAM OVERVIEW                           LAM(1)


       LAM - introduction to Local Area Multicomputer (LAM)


       LAM is an MPI programming environment and development system for a mes-
       sage-passing parallel machine constituted with heterogeneous UNIX  com-
       puters on a network.  With LAM, a dedicated cluster or an existing net-
       work computing infrastructure can act as one parallel computer  solving
       one  compute-intensive  problem.   LAM  emphasizes  productivity in the
       application development cycle with  extensive  control  and  monitoring
       functionality.  The user can easily debug the common errors in parallel
       programming and is well equipped to diagnose more difficult problems.

       LAM features a full implementation of the MPI  communication  standard,
       with  the exception that the MPI_CANCEL function will not properly can-
       cel messages that have been sent.

   User Information
       Users are strongly encouraged to read the LAM/MPI User’s Guide that  is
       included  with  the  LAM/MPI  distribution, and is provided on the main
       LAM/MPI web site (

   Up-to-Date Information
       The  LAM  home  page  can  be  found  on  the  World   Wide   Web   at:   It  should be consulted for the most current
       information about LAM, as well as updates, patches, etc.


   Overview of Commands and Libraries
       introu(1), introc(2), INTROF(2)

   System Services Interface (SSI)
       lamssi(7), lamssi_boot(7), lamssi_coll(7), lamssi_rpi(7)

   Starting / Stopping LAM
       recon(1), lamboot(1), lamhalt(1),  lamnodes(1),  lamwipe(1),  tping(1),
       lamgrow(1), lamshrink(1)

   Compiling MPI Applications
       mpicc(1), mpiCC(1), mpif77(1)

   Running MPI Applications
       mpirun(1), lamclean(1)

   Running Non-MPI Applications

   Monitoring MPI Applications

   Unloading MPI Trace Data

   Reference Documents
       "LAM/MPI Installation Guide"
              included   in   the   LAM/MPI   distribution  and  available  on

       "LAM/MPI User’s Guide"
              included  in  the  LAM/MPI   distribution   and   available   on

       "LAM Frequently Asked Questions"

       "MPI Primer / Developing with LAM", Ohio Supercomputer Center

       "MPI:  A Message-Passing Interface Standard", Message-Passing Interface
              Forum, version 1.1

       "MPI-2: Extensions to the Message Passing Interface",  Message  Passing
              Interface Forum, version 2.0

   MPI Quick Tutorials
       "LAM/MPI ND User Guide / Introduction"

       "MPI: It’s Easy to Get Started"

       "MPI: Everyday Datatypes"

       "MPI: Everyday Collective Communication"

   Guaranteed Envelope Resources
       "Robust  MPI Message Delivery Through Guaranteed Resources", MPI Devel-
              oper’s Conference, 1995

LAM 7.1.1                       September, 2004                         LAM(1)

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