BEGIN:VCALENDAR PRODID:-//Microsoft Corporation//Outlook MIMEDIR//EN VERSION:1.0 BEGIN:VEVENT DTSTART:20121114T223000Z DTEND:20121115T000000Z LOCATION:155-F DESCRIPTION;ENCODING=QUOTED-PRINTABLE:ABSTRACT: Traditionally, in studying CCUS, numerical codes that simulate water-rock interaction and reactive transport sequentially solve an elemental mass balance equation for each control volume that represents a discretized lithology containing charged aqueous solute species. However, this formulation is not well suited for execution on many-core distributed clusters.=0A=0AHere, we present the theory and implementation of a numerical scheme whereby all solute concentrations in all control volumes are solved simultaneously by constructing a large block-banded sparse matrix of dimension Na times Nx, where Nx is the number of control volumes and Na is the number species for which their diffusion, advection, and reaction processes are of interest. These are very large matrices that fulfill the requirements needed in order to be factored with SuperLU_DIST from Lawrence Berkeley National Laboratory (LBNL). Performance metrics are considered on the ~10K core XSEDE cluster trestles.sdsc.edu which is located at the San Diego Supercomputer Center (SDSC). SUMMARY:High Performance Computing in Simulating Carbon Dioxide Geologic Sequestration PRIORITY:3 END:VEVENT END:VCALENDAR