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File IS-ENES2_D10.1_Documentation on benchmarking framework_Submitted Version
This deliverable outlines our strategy on how to implement a technical and organisational framework for development, distribution and evaluation of application benchmarks for Earth System Modelling. The structural components of the framework are (1) Service platform “Performance Analysis for Earth System Modelling”, (2) Earth System Model Benchmark Suite containing climate application benchmarks of varying complexity, (3) Set of common performance metrics, (4) Measurement and evaluation tools, and (5) Central benchmark repository.
Located in Archive / / Documents / Deliverables
File IS-ENES2_D10.2_Interim report on status of benchmark suite
This deliverable describes the current development status of the ENES Benchmark Suite, a collection of real application benchmarks used to model Earth System. The suite is assembled from applications of varying complexity ranging from simple computational and communication kernels to fully coupled Earth System Models (ESMs). The focus is here set on description of already available benchmarks: CMCCC-CESM-NEMO, EC-EARTH, IPSLCM and MPI ESM1. The Redmine project management tool is employed to ensure the availability of up-to-date benchmarks and performance data.
Located in Archive / / Documents / Deliverables
File IS-ENES2_D10.3_Report on benchmark suite for evaluation of coupling strategies
This document describes the work done to develop a first version of a community coupling technology benchmark. Today, stand-alone components running on 4 different grids and coupled test-cases based on components running on the regular latitude-longitude grid and using either the OASIS3-MCT, OpenPALM, ESMF, MCT or YAC coupling technologies are publicly available. As a proof of concept, these coupled test cases were run in different configurations on three different platforms: Bullx at CINES in France, Cray XC40 at the UK MetOffice, and the Broadwell partition of Marconi at CINECA in Italy. The coupled components exchange coupling fields defined on grids of different sizes decomposed in parallel partitions with different aspect ratios and different orientations. The timings obtained for the coupling initialisation and coupling exchanges for the different tests are detailed, primarily to demonstrate the versatility of this benchmarking environment. However, these first results are not yet suitable to draw any firm conclusions on the relative performance of the coupling technologies used.
Located in Archive / / Documents / Deliverables
File application/x-troff-ms IS-ENES2_D10.4_Report on the suite of base benchmarks and analysis of performance on available platforms
This report describes the final status of the ENES Benchmark Suite at the end of the IS-ENES2 project. The suite is assembled from applications of varying complexity ranging from computational and communication kernels to fully coupled Earth System Models (ESMs). The Redmine project management tool is employed to ensure the availability of up-to-date benchmarks and performance data. The HPC vendors’ feedback suggests that the prepared benchmarks are useful and necessary for efficient collaboration between climate modelling community and HPC system providers.
Located in Archive / / Documents / Deliverables
File object code IS-ENES2_MS10.3_Kernels extracted from ICON and NEMO
The document reports the instructions to run a representative NEMO kernel on HPC systems and related benchmark results on the CMCC iDataPlex system. The kernel has been extracted as mini-app and does not require the installation of additional libraries to be executed. The kernel code and an example of the script needed to run the mini-app, are available for download at the following link https://redmine.dkrz.de/projects/nemo-kernels/files. The ICON code has been constantly and considerably evolving during recent years. Especially a major re-factoring of the code structure has been ongoing (outside of the IS-ENES project) to considerably improve code quality and scalability. We therefore decided to first release the full ICON benchmark (Task 10.2b) which will be based on the re-factored version. Based on profiling of this benchmark - which can be considered as sufficiently representative for a production version of ICON - MPG and DKRZ will then decide on the options for extracting meaningful kernels and to define a light weight "mini app".
Located in Archive / / Documents / Milestones
File IS-ENES2_MS10.4_Implementation of the benchmark suite for evaluation of coupling strategies
This milestone is linked to the WP10 task 3 « Evaluation of coupling strategies ». The intention of this task is to define and implement a suite of coupled benchmarks based on simplified model components that capture the essence of the coupling challenges in climate models without the complexities of the science. After having defined the main features of the benchmark suite in M10.1, we detail here the test cases that will, in a first step, practically implement the benchmark suite and we report on the part of these test cases that have been already coded by the different partners. In a next step, the test cases chosen will be run on different computing platforms and analysed to compare key characteristics of few coupling technologies.
Located in Archive / / Documents / Milestones
File IS-ENES2_MS10.5_Benchmark version of ICON
According to the proposed working plan, the ICON benchmark has been made available. Instructions on running the benchmark and evaluation of results as well as the performance reference for two different HPC systems are provided.
Located in Archive / / Documents / Milestones
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IS-ENES3 has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 824084