Page Comparison

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dmg pool create -z=100% --label io500_pool
daos container create --type POSIX --pool io500_pool --label=io500_cont

Set the pool and cont environment variables

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• Run the binary directly with or without the extended mode:

  Code Block
  language bash
  mpirun -np 16 --hostfile ~/config/cli_hosts ./io500 temp.ini mpirun -np 16 --hostfile ~/config/cli_hosts ./io500 temp.ini --mode=extended

  The extended mode is not required for an official submission and will extend your runtime significantly. After the run completes, you will need to tar up the result dir for that run.

  Note that some versions of OpenMPI require setting the environment variables on the mpirun command line, so one needs to add the environment variables that are mentioned above on the mpirun command line with the following format:

  Code Block
  language bash
  mpirun -np 16 -x env1=value1 -x env2=value2 --hostfile ~/config/cli_hosts ./io500 temp.ini

• Run the io-500.sh script:

  • This requires mounting dfuse on the launch node only (not all the compute nodes):

    Code Block
    language bash
    mkdir /tmp/dfuse dfuse --pool=/tmp/dfuse/ $DAOS_POOL --container=$DAOS_CONT -m /tmp/dfuse/

    Then, edit the io500.sh launch script with the mpirun command and change the local workdir, to add the dfuse prefix

    Code Block
    language bash
    diff --git a/io500.sh b/io500.sh index 5f0bb89..dd62c35 100755 --- a/io500.sh +++ b/io500.sh @@ -12,10 +12,10 @@ # This script takes its parameters from the same .ini file as io500 binary. io500_ini="$1" # You can set the ini file here io500_mpirun="mpiexec" -io500_mpiargs="-np 2" +io500_mpiargs="-np 16 --hostfile ~/config/cli_hosts" function setup(){ - local workdir="$1" + local workdir="/tmp/dfuse/$1" local resultdir="$2" mkdir -p $workdir $resultdir

    • Note that some versions of OpenMPI require setting the environment variables on the mpirun command line, so one needs to add the environment variables that are mentioned above on the mpirun command line in the script here with the following format:

      Code Block
      language bash
      io500_mpiargs="-np 16 -x env1=value1 -x env2=value2 --hostfile ~/config/cli_hosts

  • Then run the io500.sh script which will tar the results for you at the end and place them in the result directory you specified in the ini file:

    Code Block
    language bash
    ./io500.sh temp.ini

    Lastly umount dfuse on the launch node:

    Code Block
    language bash
    fusermount3 -u /tmp/dfuse/

    
    

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