* Lect 15 & 16
  - Dependencies: true, anti, write
  - Cholesky: dependencies between operations, between iterations
  - Algorithms by blocks
  - Storage by blocks
  - DAG
  - Task queue
  - Out of order execution
  - Blocked algorithms vs. algorithms by blocks
  - https://dl.acm.org/citation.cfm?id=1345227
  - Inversion of an SPD matrix