This seems fine, since they are simply requesting an advance on their allocation. Ray Bair Chief Computational Scientist, CELS Computing, Environment, and Life Sciences Argonne National Laboratory, and The University of Chicago Sent from my A4 On Nov 15, 2010, at 10:50 AM, "[email protected]" <[email protected]> wrote:

Hello,

A change in allocation has been requested:

Requester: tslee (Tsung-Shung Lee) Project: EBAC Title: Analysis of Nucleon Resonances Description: The objectives of Analysis of Nucleon Resonances (N*) are twofold. The first is to perform dynamical coupled-channels analysis of meson production reaction data for extracting the parameters of nucleon resonances. The second objective is to develop theoretical interpretations of the determined resonance parameters in terms of hadron structure calculations such as the constituent quark model and Lattice QCD calculations.

This project will provide information for understanding the non-perturbative aspects of QCD. In particular, the extracted N-N* form factors will reveal the dynamical origins of quark confinement and the meson cloud associated with the spontaneously breaking of chiral symmetry.

This project is needed to reach milestones HP3 and HP7 by 2012 set in DOE's long-range plan of 2010.

Current: undetermined amount Justification: The analysis will be carried out by solving a large set of coupled integral equation in momentum-space an performing chi-squared fits , with about 200 parameters, to very extensive world data of pion-nucleon scattering and electromagnetic meson production reactions.

The calculation at each energy and each set of parameters involve an inversion of an about 1000*1000 complex matrix. This has to be repeated The calculation at each energy and each set of parameters involve an inversion of an about 1000*1000 complex matrix. This has to be repeated many times in searching the best-fit parameters in chi-squared fit to very extensive data (about 60,000 data points) using MINUIT

Requested: 250000

A specific reason has been given: Since Oct.1, 2010, we have drastically incrased our computation : 160 processors, , 12 hours for each job, which is about a factor of 4 of our normal computation, This task is needed since we are fitting a large amount of data by varing about 100 parameters in chi**2 fit using MINUIT. This fitting is expected to end in January, After that we will return to our normal computation. We thus request advancing 100,000 hrs. of the allocated time to this period. No new allocation for 2011 is requested.

This needs to be approved and the final allocation amount decided upon.

Thank You, The LCRC Accounts System _______________________________________________ allocations-admins mailing list [email protected] https://lists.lcrc.anl.gov/mailman/listinfo/allocations-admins