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howto:start [2022/08/16 13:12]
ccrosby [Video tutorials for newcomers] 		howto:start [2026/02/24 10:42] (current)
ccrosby [Using the Intel compilers]
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   * [[https://youtu.be/CIEVMlrKXF4|The CHPC's service nodes and using the module system]]   * [[https://youtu.be/CIEVMlrKXF4|The CHPC's service nodes and using the module system]]
   * [[https://youtu.be/mQjh8J_aMYU|Test running in an interactive PBS session]]   * [[https://youtu.be/mQjh8J_aMYU|Test running in an interactive PBS session]]
 +  * [[https://youtu.be/MEwi4uxM5hc|Running an application in batch mode under PBS]]
  
 ===== Tips and Tricks ===== ===== Tips and Tricks =====
 [[howto:TipsAndTricks|Tips & tricks for common tasks.]] :!: ** Please read this.  The information is based on hard won experience. ** :!: [[howto:TipsAndTricks|Tips & tricks for common tasks.]] :!: ** Please read this.  The information is based on hard won experience. ** :!:
 +
 +
 +===== If you need more memory =====
 +As of May 2025, 41 compute nodes have had more memory added, cannibalizing memory modules from nodes that have failed permanently.  These 24-core nodes now have 256 GB of RAM each.  You can access these nodes by including the directive ''mem=250gb'' in your resource request line.  These nodes work with the usual queues such as smp, normal or large.
 +
 +<code>
 +#PBS -l select=1:ncpus=24:mpiprocs=24:mem=250gb 
 +</code>
 +
 +Only use these nodes if you need more than 128 GB of RAM, but less than the 1TB available on the "fat nodes".
 +
 +
 +===== Using the Intel compilers =====
 +As of December 2025, there is no license for the Intel Parallel-studio compilers.  However, all is not lost.  The "classic" compilers and MPI are installed in the directory:
 +<code>
 +/home/apps/chpc/compmech/compilers/intel_2021.3/oneapi
 +</code>
 +
 +The most recent Lengau-compatible version of the OneAPI suite is installed in:
 +<code>
 +/home/apps/chpc/compmech/compilers/intel/oneapi
 +</code>
 +
 +=== Classic Intel compiler and MPI ===
 +To use the "classic" suite, use the following settings:
 +<code>
 +. /home/apps/chpc/compmech/compilers/intel_2021.3/oneapi/compiler/2021.3.0/env/vars.sh
 +. /home/apps/chpc/compmech/compilers/intel_2021.3/oneapi/mkl/2021.3.0/env/vars.sh
 +. /home/apps/chpc/compmech/compilers/intel_2021.3/oneapi/mpi/2021.3.0/env/vars.sh
 +export CC=icc
 +export CXX=icpc
 +export FC=ifort
 +export F90=ifort
 +export F77=ifort
 +export MPICC=mpiicc
 +export MPICXX=mpiicpc
 +export MPIFORT=mpiifort
 +export MPIF77=mpiifort
 +export MPIF90=mpiifort
 +</code>
 +
 +It is not necessary to use a machinefile for multi-node MPI runs.
 +
 +=== OneAPI compilers and MPI ===
 +Post-2024 OneAPI compilers are not compatible with Lengau's operating system.  To use the most recent compatible version, use the following settings:
 +<code>
 +. /home/apps/chpc/compmech/compilers/intel/oneapi/setvars.sh
 +export CC=icx
 +export CXX=icpx
 +export FC=ifx
 +export F90=ifx
 +export F77=ifx
 +export MPICC=mpiicx
 +export MPICXX=mpiicpx
 +export MPIFORT=mpiifx
 +export MPIF77=mpiifx
 +export MPIF90=mpiifx
 +export I_MPI_HYDRA_BOOTSTRAP=ssh
 +</code>
 +
 +It is not necessary to use a machinefile for multi-node MPI runs.  However, the default bootstrap method using pbsdsh does not work, hence the need to set ''I_MPI_HYDRA_BOOTSTRAP''.  This is a typical command mpi run command:
 +<code>
 +mpirun -np 96 myMPIprogram.exe
 +</code>
 +
 +
 +
 +
 +
 +
 +
 +===== Transferring data to DIRISA =====
 +Long-term data storage through [[howto:Dirisa|DIRISA.]] 
 +
 +
  
  
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 ===== Dealing with software licensing ===== ===== Dealing with software licensing =====
 Commercial software involves dealing with [[howto:licensing|licensing.]] Commercial software involves dealing with [[howto:licensing|licensing.]]
 +
 +
 +===== Ssh-tunneling with MobaXterm =====
 +Here is a [[https://youtu.be/lil4eagB8oY|tutorial video]] on ssh-tunneling with MobaXterm.
  
  
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   *[[ansysmechanical|Using Ansys/Mechanical at the CHPC]]   *[[ansysmechanical|Using Ansys/Mechanical at the CHPC]]
   *[[cfx|Using Ansys/CFX at the CHPC]]   *[[cfx|Using Ansys/CFX at the CHPC]]
 +  *[[forte|Using Ansys Forte at the CHPC]]
   *[[starccm|Using STAR-CCM+ at the CHPC]]   *[[starccm|Using STAR-CCM+ at the CHPC]]
   *[[CFD-Ace|Using ESI CFD-Ace at the CHPC]]   *[[CFD-Ace|Using ESI CFD-Ace at the CHPC]]
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   *[[howto:ultrafluidx|Using Altair's UltraFluidX LBM code at the CHPC]]   *[[howto:ultrafluidx|Using Altair's UltraFluidX LBM code at the CHPC]]
   *[[Palabos|Using the lattice-Boltzman code Palabos at the CHPC]]   *[[Palabos|Using the lattice-Boltzman code Palabos at the CHPC]]
 +  *[[AMR-Wind|Using the wind-energy code AMR-Wind at the CHPC]]
  
 ===== Computational Electromagnetics ===== ===== Computational Electromagnetics =====
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   *[[grace|Using grace]]   *[[grace|Using grace]]
   *[[p4vasp|Using p4vasp]]   *[[p4vasp|Using p4vasp]]
 +  *[[vesta|Using Vesta]]
 +
 +===== Matlab at CHPC =====
 +  *[[matlab|Using Matlab on the cluster]]
 +
  
 ===== Earth Sciences ===== ===== Earth Sciences =====
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   *[[CDO|Using Climate Data Operator (CDO)]]   *[[CDO|Using Climate Data Operator (CDO)]]
  
 +===== Windows applications =====
 +  *[[windows|Running Windows applications]] 
    
  
/app/dokuwiki/data/attic/howto/start.1660648320.txt.gz · Last modified: 2022/08/16 13:12 by ccrosby

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