UNIVERSITÀ DI PARMA
DIPARTIMENTO DI SCIENZE MATEMATICHE, FISICHE E INFORMATICHE

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File are in 
  cd /work/staff/roberto.depietri/GRIDIT_test
To start
   voms-proxy-init -voms gridit
   myproxy-init -d -n  -c 3880

====== LOGIN ======

  Requirements=(other.GlueCEUniqueID=="voms-proxy-init -voms gridit");

In this way we are connected to the test virtual organization that we use
for testing. The specific requirements that one has to specify to 
run on one of the participating nodes are list below.

The basic test we first execute is a test the we are able to allocate two whole
nodes and we are able to compile and run a very basic MPI program. 

=== Test results ===

Up to now we successfully run this test on the PARMA and NAPOLI nodes. On the PISA nodes 
we are in queue. On the PERUGIA node we are able to compile but mpi-start
fails with the error

  ....omissis...
  + /usr/lib64/openmpi/1.4-gcc/bin/mpiexec -wdir /home/gridit009/home_crcex_576377136/CREAM576377136 \
      -x X509_USER_PROXY -x OMP_NUM_THREADS --prefix -4_PATH -machinefile /tmp/tmp.qNoqU31285 \
      -npernode 1 ./GETINFO
  bash: -4_PATH/bin/orted: No such file or directory
  ....omissis...
 


====== Nodes that are participating ======

===== Generic =====

  requirements=(other.GlueCEImplementationVersion=="1.13.4") &&
    Member("MPI-START",other.GlueHostApplicationSoftwareRunTimeEnvironment);

===== Parma =====


  Requirements=(other.GlueCEUniqueID=="emi-ce.pr.infn.it:8443/cream-pbs-parallel");


===== INFN-Pisa =====


  Requirements=(other.GlueCEUniqueID=="gridce4.pi.infn.it:8443/cream-lsf-gridmpi");

===== UNI-NA =====

  Requirements=(other.GlueCEUniqueID=="emi-ce01.scope.unina.it:8443/cream-pbs-hpc");

===== INI-PG =====


  Requirements=(other.GlueCEUniqueID=="cex.grid.unipg.it:8443/cream-pbs-grid");


MPI_START errr: 
mpi-start [DEBUG  ]: using user supplied mpiexec: '/usr/lib64/openmpi/1.4-gcc/bin/mpiexec'
/etc/mpi-start/openmpi.mpi: line 39: opal_info: command not found
/etc/mpi-start/openmpi.mpi: line 40: opal_info: command not found
/etc/mpi-start/openmpi.mpi: line 41: opal_info: command not found

executed with message

  declare -x PBS_NP="2"
  declare -x PBS_NUM_NODES="1"
  declare -x PBS_NUM_PPN="2"
  There are [1] MPI Process on this job !
  --Process rank [0] with nthreads=1 Executing on node: nx02.grid.unipg.it




====== Files used for the tests ======

===== JDL  =====

The main JDL to be used are made like this

  JobType = "Normal";
  Executable    = "TestMPI.bash";
  Arguments     = "-vv -d MPI_USE_AFFINITY=1";
  StdOutput     = "std.out";
  StdError      = "std.err";
  InputSandbox  = {"TestMPI.bash"}; 
  OutputSandbox = {"std.out", "std.err"};
  MyProxyServer = "myproxy.cnaf.infn.it";
  WholeNodes = True;
  HostNumber = 2;
  Requirements=(other.GlueCEUniqueID=="emi-ce.pr.infn.it:8443/cream-pbs-parallel");







===== .BASH =====

The behavior is controlled by the configuration file of mpi-start 
was rule are defined [[http://grid.ifca.es/wiki/Middleware/MpiStart/SiteConfiguration|here]]

  #!/bin/bash
  cat > pre_run_hook.sh <<EOF
  pre_run_hook () {
      echo "******************************************"
      echo "** pre run hook called "
      echo "******************************************"
      env|grep MPI_
      echo "******************************************"
      echo "** compile Programm "
      echo "******************************************"
      echo "COMMANDS: \$MPI_MPICC \$MPI_MPICC_OPTS -fopenmp mpi_getinfo.c -o GETINFO"
      \$MPI_MPICC \$MPI_MPICC_OPTS -fopenmp mpi_getinfo.c -o GETINFO
      ls -lth 
      echo "******************************************"
      echo "** END of compilation "
      echo "******************************************"
      return 0
  }
  EOF
  cat > mpi_getinfo.c <<EOF
  /*********************************/
  /* mpi_getinfo.c                 */
  /*********************************/
  #include <omp.h>
  #include <stdio.h>
  #include "mpi.h"
  int main(int argc, char **argv)
  {
     int        rank, np, tot_threads;
     char       name[MPI_MAX_PROCESSOR_NAME];
     int        resultlen;
     int        i;
     int        nthreads;
     MPI_Status status;
     MPI_Init(&argc, &argv);
     MPI_Comm_rank(MPI_COMM_WORLD, &rank);
     MPI_Comm_size(MPI_COMM_WORLD, &np);
     MPI_Get_processor_name(name, &resultlen);
     #pragma omp parallel
     nthreads=omp_get_num_threads();
  
     if(rank == 0)
     {
       printf("There are [%d] MPI Process on this job !\n",np);
        printf("-- MPI process [%2d of %d] with %d nthreads is executing on node: %s\n", rank,np, nthreads,name);
        tot_threads = nthreads;
        for(i = 1; i < np; i++)
        {
           MPI_Recv(&nthreads, 1, MPI_INT, i, 0, MPI_COMM_WORLD, &status);
           MPI_Recv(&resultlen, 1, MPI_INT, i, 0, MPI_COMM_WORLD, &status);
           MPI_Recv(name, resultlen+1, MPI_CHAR, i, 0, MPI_COMM_WORLD, &status);
           printf("-- MPI process [%2d of %d] with %d nthreads is executing on node: %s\n",i,np, nthreads,name);
           tot_threads += nthreads;
        }
        printf("The total number of threads for this run is %d !\n",tot_threads);
     }
     else
     {
        MPI_Send(&nthreads, 1, MPI_INT, 0, 0, MPI_COMM_WORLD);
        MPI_Send(&resultlen, 1, MPI_INT, 0, 0, MPI_COMM_WORLD);
        MPI_Send(name, resultlen+1, MPI_CHAR, 0, 0, MPI_COMM_WORLD);
     }
    MPI_Finalize();
    return 0;
  }
  EOF
  
  echo "****************************************"
  echo "* Print the execution ENVINRONMENT     *"
  echo "****************************************"
  export
  echo "****************************************"
  echo " MPI start -- no opt with compiler PREHOOK  "
  echo "****************************************"
  mpi-start -t openmpi -pre ./pre_run_hook.sh  -- ./GETINFO 
  echo "****************************************"
  echo " MPI start PSOCKET "
  echo "****************************************"
  mpi-start -t openmpi -psocket $@ -- ./GETINFO 
  echo "****************************************"
  echo " MPI start PCORE  "
  echo "****************************************"
  mpi-start -t openmpi -pcore   $@ -- ./GETINFO 
  echo "****************************************"
  echo " MPI start PNODE  "
  echo "****************************************"
  mpi-start -t openmpi -pnode   $@  -- ./GETINFO
UNIVERSITÀ DI PARMADIPARTIMENTO DI SCIENZE MATEMATICHE, FISICHE E INFORMATICHE

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UNIVERSITÀ DI PARMA
DIPARTIMENTO DI SCIENZE MATEMATICHE, FISICHE E INFORMATICHE
