Goal is to test cpl6 scalability.
Updated 2/21/07
Part of CCSM on BlueGene project
Configuration is 1 processor for each dead model and varying coupler processors. So "32" means 28 coupler processors and 1 each for atm,ocn,ice and land dead models.
Data from Ray Loy
Note: Dead models do not have the decomposition restrictions of full models (e.g. T42 can run on more than 128 processors)
CO up to 512 and VN up to 512 runs. 1024 VN with old cpl_map_mod: Runs out of memory in mapping init 1024 VN with new cpl_map_mod: runs out of memory in main loop 1024 CO Runs out of memory during an Av init 2048 VN (with mph changes) runs out of memory in mapping init |
co mode runs OK with 32,64,96,128,256,512,1024 procs vn mode runs OK with cpl procs 32,64,96,128,256,512 procs 1024 case exits after reaching cpl_domain_compare 2048 case still in cpl_comm_init after 20 minutes (killed for time) |
CO mode runs OK with 32,64,128,256,512 procs
Does not complete: 1024
1024 makes it to start of main integration then runs
out of memory while allocating an Av somewhere.
VN mode runs OK with 32,64,128,256,512 procs
1024: does not complete (MORE INFO NEEDED)
2048: runs out of memory in mapping init. |
2 cpl (6 total): dies before/during bundle initialization in Xc2a 28 cpl (32 total): dies before/during bundle init in Xc2i |
28 cpl gets further then 2 before dying.