Hello, A new project on the LCRC cluster has been requested. Please forward the information on to the LCRC Allocation sub-committee. Applicant's name: Robert Jacob Applicant's institution: ANL Applicant's division: MCS Project Name: parvis Project title: Parallel Analysis Tools for Ultra-Large Climate Data Sets Associated funding: DOE BER Other Systems: NERSC Science: Like many scientific applications, climate models rely on numerical methods to solve their equations. But insights about the simulated climate are revealed only after performing additional calculations on several years to decades of the multivariate, multidimensional time series output by the climate model. The tools currently used to perform the climate data analysis and visualization (DAV) are serial and can no longer handle the data sizes being generated. We will be developing a new parallel version of a widely used climate DAV system called NCL which will speed up the climate science workflow for researchers throughout the community. Project description: NCL (the NCAR Command Language) is an interpreted scripting language that allows Matlab-like operations on arrays, can read many climate and weather data formats and provides special functions for plotting climate and weather quantities over maps of the earth. NCL produces publication-quality output. To parallelize NCL, we will use two existing parallel libraries. MOAB, the Mesh Oriented Database, contains datatypes and methods for representing unstructured grids in parallel. Intrepid is part of the Trilinos system and is a library for computing operators acting on discretized fields. MOAB and Intrepid both use MPI for their parallelism and MOAB, Intrepid and NCL are written in C++. We will be developing new code to interface NCL with MOAB/Intrepid. Are goal is for a scalable DAV tool that can perform all I/O and calculation in parallel while still rending publication quality 2D plots. If we distribute the data evenly among processors in parallel, then all time-domain calculation will be embarrassingly parallel while most spatial calculation will need only nearest neighbor exchanges. Project URL: http://trac.mcs.anl.gov/projects/parvis Requested allocation: 20000 Justification: The requester has used 0 hours of their initial startup project. In addition to approving an initial amount, please specify a Category and Subcategory for this project. For a list of the current selection of approved categories, please see: https://wiki.lcrc.anl.gov/wiki/Processes/Categories Once the Allocation committee has approved the project, please go to the Project Management page to create it: https://accounts.lcrc.anl.gov/projects.php Thank You, The LCRC Accounts System