1. Modeling & Simulation New resource available to NASA programs: Project Columbia: 10240 SGI Altix Question before the HMI science Co-I’s: How do we take advantage of this resource to help in enabling “neat results in the summer of 2008?”

2. Front End - 128p Altix 3700 (RTF) Networking - InfiniBand Switch (288port) - InfiniBand (4 per 3700, 8 per 3700Bx2)) - 10GigE Switch 32-port - 10GigE Cards (1 Per 512p) - GigE Switch 384-port, 96-port - GigE (12 per 512) - Altix 3700Bx2 2048 Numalink Kit Compute Nodes - Altix 3700 12x512p - Altix 3700Bx2 8x512p Storage Area Network -Brocade Switch 2x128port Storage (440 TB) -FC RAID 8x20 TB (8 Racks) -SATARAID 8x35TB (8 Racks ) Mass Storage (17 PB) -17 PB MSS A512p T512p RTF 128 SATA 35TB Fibre Channel 20TB SATA 35TB SATA 35TB SATA 35TB SATA 35TB SATA 35TB SATA 35TB SATA 35TB FC Switch 128p Fibre Channel 20TB Fibre Channel 20TB Fibre Channel 20TB Fibre Channel 20TB Fibre Channel 20TB Fibre Channel 20TB Fibre Channel 20TB InfiniBand10GigE Project Columbia: Components

3. Planned BIG simulations Answer science questions (guided/ verified by observations): Search for the genesis of Supergranules Understanding the near surface magnetic network Search for the genesis of the near surface shear layer Understanding the dynamics around Sunspots Search for the genesis of the Solar dynamo Understanding differential rotation Understanding the dynamics in the tachocline neighborhood Provide calibration data: Interpretation of observations Local Helioseismology Global Helioseismology Missing: Data assimilation & forecasting capabilities Link between global and near surface simulations Link between solar interior, atmosphere & solar wind