High performance computation and database of radiative properties with an interface for ICF applications.

摘要

An atomic database computing system has been developed to integrate the computing of large-scale atomic data for ICF applications, spectrum analysis for laser-produced plasmas and EOS and opacity data visualization into a single platform. The system is based on the distributed commodity architecture. An Oracle database is used to be the atomic data provider as the back-end in the three-tier architecture. Commodity network computing technologies such as CORBA, Enterprise JavaBean are used as glue to connect the back-end services and the front-end graphic user interfaces. A new model (RSSUTA) based on relativistic single configuration single-electron transition approximation has been developed for high Z elements using JJ coupling schema. To calculate enormous numbers of transition lines and other radiative properties for high Z elements, we implement the RSSUTA model in a parallel computing environment using MPI. Trial runs on the NPACI IBM SP show that the speedup is linearly dependent on the number of processors. For general users, we provide graphic user interfaces from data generation to visualization. Using this program, users can easily obtain almost all atomic data for ICF applications.