CMU Data Challenge 2

1. At CMU we are using 12 boxes, each with 4 8-core AMD Opteron Processors (32 cores per box). Each box has 64GB of physical memory. Data are being written to a local RAID disk. Jobs are manage by PBS (torque and maui).
2. All 384 cores are reserved for the data challenge for three weeks.
3. Start-up Problems
   • All jobs were initially reading from the same copy of sqlite, resources, and hdds, instead of having their own copies.
   • Large-cluster configuration problems slowed our start. Resolved by tuning PBS parameters to control the rate at which pbs_mom talked to the head node.
   • Still battling a scheduler issue. Work-around has been found.
   • Running smoothly since ~Tuesday.
4. As of 10:30am, 1087 jobs have completed.
   • 9001 Series - 859 1E7 with EM Background : 21.47 MEvents : 1 failure (DMagneticFieldMapFineMesh::GetFieldAndGradient())
   • 9002 Series - 225 5E7 with EM Background : 2.25 MEvents : 0 failures
   • 9003 Series - 90 without EM Background  : 4.45 MEvents : 1 failure (Job lost to the aether)