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GMD - Comparing the Performance of Julia on CPUs versus GPUs and Julia-MPI versus Fortran-MPI: a case study with MPAS-Ocean (Version 7.1)

Abstract. Some programming languages are easy to develop at the cost of slow execution, while others are fast at runtime but much more difficult to write. Julia is a programming language that aims to be the best of both worlds – a development and production language at the same time. To test Julia s utility in scientific high-performance computing (HPC), we built an unstructured-mesh shallow water model in Julia and compared it against an established Fortran-MPI ocean model, the Model for Prediction Across Scales–Ocean (MPAS-Ocean), as well as a Python shallow water code. Three versions of the Julia shallow water code were created: for single-core CPU, graphics processing unit (GPU), and Message Passing Interface (MPI) CPU clusters. Comparing identical simulations revealed that our first version of the Julia model was 13 times faster than Python using NumPy, where both used an unthreaded single-core CPU. Further Julia optimizations, including static typing and removing implicit mem ....

United Kingdom , United States , Markr Petersen , Los Alamos , Robertr Strauss , Sylwester Arabas , Office Of Science User Facility , Environmental Research , Us Department Of Energy , Office Of Science , National Nuclear Security Administration , Energy Exascale Earth System Model , Planetary Sciences , Los Alamos National Laboratory , Massachusetts Institute Of Technology , Software Environments , Methods Group , National Energy Research Scientific Computing Center , Institutional Computing Program , Department Of Earth , Massachusetts Institute , Nonlinear Studies , Prediction Across Scales , Message Passing Interface , Model Dev , Intel Cascade Lake ,

ORNL Researchers Develop Open-Source Mixed-Precision Benchmark Tool for Supercomputers

ORNL Researchers Develop Open-Source Mixed-Precision Benchmark Tool for Supercomputers
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United States , Jens Glaser , Chao Lu , Mike Matheson , Feiyi Wang , Software Services , Office Of Science , National Center , Association For Computing Machinery , Computational Sciences , Department Of Energy Oak Ridge National Laboratory , Oak Ridge Leadership Computing Facility , Oak Ridge National Laboratory , Georgia Tourassi , Message Passing Interface , Bell Special Prize ,

Researchers develop open-source mixed-precision benchmark tool for supercomputers

Researchers develop open-source mixed-precision benchmark tool for supercomputers
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Feiyi Wang , Mike Matheson , Chao Lu , Jens Glaser , National Center , Software Services , Computational Sciences , Department Of Energy Oak Ridge National Laboratory , Association For Computing Machinery , Oak Ridge Leadership Computing Facility , Oak Ridge National Laboratory , Georgia Tourassi , Message Passing Interface , Bell Special Prize ,

New AWS Instances For HPC Enable Weather Forecasting, Crash Simulations And More

#1-Ranked Industry Analyst Patrick Moorhead discusses how AWS has put itself at the forefront of the trend for cloud-based high-performance computing. ....

Atmospheric Administration , National Oceanic , Message Passing Interface , Elastic Fabric Adapter , Weather Forecasting , Automotive Design ,

Deploying and Running HPC Applications on AWS Batch

Deploying and Running HPC Applications on AWS Batch
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Amazon Elastic Container Service , Cloud Development Kit , Service Catalog , Amazon Elastic File System , Development Kit , Chemical Simulations , Molecular Dynamics , Message Passing Interface , Short Youtube ,