Status of CCSM on BG/L. Effort now focuses on BG/P and CCSM4alpha

CCSM3 concurrent

• CCSM with full models (single executable)
  • build supported on frost and suny
  • run completed T31_gx3v5 compset B on 32 procs with output.

• CCSM with dead models (single executable)
  • Works for many cases.
  • See CCSM with dead models
  • See cpl_map_mod problems
• CCSM with data models (single executable)
  • not attempted

    CCSM4 (sequential)

• with dead models
  • Using 32 procs and all models with identical resolution
    • FV2x2.5: runs
    • T62: decomposition error
    • T85: runs but "end of main loop" message doesn't appear in output
    • FV1x1125: as for T85.
    • T170: as for T85.
• with full models
  • high res simulation (0.5 atmosphere and 0.1 ocean) runs on BG/L at SUNY but has no output and crashes after a couple of days (sea ice error)

    Component models (as standalone)

• POP2: Compiles and runs. JohnD has version with some mods for BlueGene.
• CLM:
• CSIM:
• CAM:
  • Current Work
    • Latest CAM compiles and runs on Argonne BlueGene
    • Eulerian T42 ran ok up to 64 proc limit both co/vn
      • Eulerian T85 ran ok up to 128 proc limit co; vn has memory problems
      • FV 1x1.25: CO runs on 32,64,128,256, and 480
      • FV 1x1.25: all VN runs (8-128) fails. Allocation errors.
  • Old Work
    • Sidd Gosh Notes Used 3.3.31. T31 and T42 ran with little mdifications in co and vn mode. 1x1.25 ran fine in co mode.
      • Sidd's and Yu Heng's parallel I/O mods will not be ported. Will wait for PIO instead.
    • pilgrim memory fixed as of 3.3.35.

Results

CCSM with dead models:

• 2/21/07
• 5-16-07

cpl_map_mod problems a history of what we had to do with cpl_map_mod