log_common

Common Log Of Human Work

• 11-10-2012, 10:00-12:00

  Debugging cuda. Martin knows sufficiently cuda voodoo to make kernels print. Discovered that all threads read optionData[tid] rather than optionData[blockDim.x]!.

• 11-10-2012, 13:00-13:59

  "printf" in Cuda has a re-ordering, call excluding, life on its own. Caught an off-by-one indexing error (not completely sure why it was there).

• 11-10-2012, 14:00-14:40

  Last (apparent) error in cuda implementation found! It seems that the binomial reducer must have "cache-Δ" devisible by "n", otherwise it seems to compute "too much". We celebrate by having a ~5 minute fresh air break with victory Tic-Tacs. And we decide that the calendar now has 256 days in it.

• 11-10-2012, 15:00-15:59

  Trimming Nvidia sdk-sample cruft from Cuda example. Currently undecided about the calendar issue in Cuda. Maintaining wiki. (Checking that every implementation executes on napoleon || checking survey literature) ("||" is the CSP parallel process operator) Setting up plc computer to use diku proxy for literature search.

• 11-10-2012, 16:00-16:30 Literature search. Done for today.