- LINPACK BENCHMARK VS FULL
- LINPACK BENCHMARK VS PORTABLE
# OR get one interactive (totalling 2*2 MPI processes) on skylake-based nodes # OR get one interactive (totalling 2*2 MPI processes) on broadwell-based nodes Now you can reserve an interactive job for the compilation from the access server: # Quickly get one interactive job for 1h We are first going to use the Intel Cluster Toolkit Compiler Edition, which provides Intel C/C++ and Fortran compilers, Intel MPI. $ wget -no-check-certificate $.tar.gzĪlternatively, you can use the following command to fetch and uncompress the HPL sources: $ cd ~/tutorials/HPL In the working directory ~/tutorials/HPL, fetch and uncompress the latest version of the HPL benchmark ( i.e.
LINPACK BENCHMARK VS FULL
Intel MKL and Intel MPI suite, either in full MPI or in hybrid run (on 1 or 2 nodes).Īs a bonus, comparison with the reference HPL binary compiled as part of the toolchain/intel will be considered. The idea is to compare the different MPI and BLAS implementations:įor the sake of time and simplicity, we will focus on the combination expected to lead to the best performant runs, i.e. HPL rely on an efficient implementation of the Basic Linear Algebra Subprograms (BLAS). It is used as reference benchmark to provide data for the Top500 list and thus rank to supercomputers worldwide.
LINPACK BENCHMARK VS PORTABLE
HPL is a portable implementation of the High-Performance Linpack (HPL) Benchmark for Distributed-Memory Computers. The ratio R max/R peak corresponds to the HPL efficiency. HPL permits to measure the effective R max performance (as opposed to the above peak performance R peak).
AMD Epyc processors carry on 16 Double Precision (DP) ops/cycle. From the reference Intel documentation, it is possible to extract for the featured model the AVX-512 Turbo Frequency (i.e., the maximum core frequency in turbo mode) in place of the base non-AVX core frequency that can be used to compute the peak performance (see Fig. Skylake processors ( iris- nodes) belongs to the Gold or Platinum family and thus have two AVX512 units, thus they are capable of performing 32 Double Precision (DP) Flops/cycle. Broadwell processors ( iris- nodes) carry on 16 DP ops/cycle and supports AVX2/FMA3. R peak = #Cores x Frequency x #DP_ops_per_cycle The ULHPC computing nodes on aion or iris feature the following types of processors (see also /etc/motd on the access node): ClusterĬomputing the theoretical peak performance of these processors is done using the following formulae: # symlink to the root MakefileĪdvanced users ( eventually yet strongly recommended), create a Tmux session (see Tmux cheat sheet and tutorial) or GNU Screen session you can recover later. (access)$ ln -s ~/git//ULHPC/tutorials/parallel/mpi/HPL ref.d # create a symbolic link to the top reference material Now configure a dedicated directory ~/tutorials/HPL for this session (access)$ mkdir -p ~/tutorials/HPL If not yet done, you'll need to pull the latest changes in your working copy of the ULHPC/tutorials you should have cloned in ~/git//ULHPC/tutorials (see "preliminaries" tutorial) (access)$ cd ~/git//ULHPC/tutorials Intel Math Kernel Library Link Line Advisor. The latest version of this tutorial is available on Github and on Kindly ensure your followed the "Scalable Science and Parallel computations with OpenMP/MPI" tutorial The objective of this tutorial is to compile and run on of the reference HPC benchmarks, HPL, on top of the UL HPC platform. High-Performance Linpack (HPL) benchmarking on UL HPC platform Copyright (c) 2013-2021 UL HPC Team Big Data Application Over Hadoop and Spark. Bioinformatics workflows with snakemake and conda. Solving Laplace Equation on GPU with OpenACC. Accelerating Applications with CUDA C/C++.
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