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CCC7 Cielo Report

Lofstead, Gerald F.

ASC Level 2 Milestone FY 2013 continuation. L2 revealed memory pressures from using in situ analysis; Developed tools to determine memory usage; Reduced memory footprint by more than 50%.

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TYPE Other Report YEAR 2015
DOIOSTI

Integrated IO Services for Trilinos Data Structures

Lofstead, Gerald F.

The Trilinos Project is an effort to develop algorithms and enabling technologies within an object- oriented software framework for the solution of large-scale, complex multi-physics engineering and scientific problems. A unique design feature of Trilinos is its focus on packages. While the abstractions make it easy to incorporate advanced processing and data manipulation tools, it is not always obvious how to take advantage of these features. The trios package incorporated two years ago offers general data management services, but has yet to offer integrated support for core Trilinos data structures, such as those offered in the Tpetra package. An initial attempt to incorporate native Trilinos data structure support into trios services revealed the complexity, from a non-mathematician's perspective, of using Trilinos. This project sought to understand the complexities and potential barriers not just for non-mathematicians that want to contribute to or use Trilinos, but potentially for new mathematically-inclined users as well that may want to offer services to support users. This report documents the challenges for trios to offer some simple data manipulation required as a precursor to any direct data services integration and makes recommendations for clarifying the performance implications and general approach to use.

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TYPE SAND Report YEAR 2015
DOIOSTI
Results 76–100 of 117
Results 76–100 of 117