Speculation killed dataflow. (Attributed to Arvind 2005) There have been many attempts at making data-flow applications compatible with general purpose computa

Speculation killed dataflow. (Attributed to Arvind 2005) There have been many attempts at making data-flow applications compatible with general purpose computation workloads. They all failed to beat the performance of comparable conventional processors. [1] lists the following disadvantages of data-flow: - Debugging difficult (no precise state) - Interrupt/exception handling is difficult (what is precise state semantics?) - Implementing dynamic data structures difficult in pure data flow models - Too much parallelism? (Parallelism control needed) - High bookkeeping overhead (tag matching, data storage) - Instruction cycle is inefficient [1] https://course.ece.cmu.edu/~ece740/f13/lib/exe/fetch.php?media=onur-740-fall13-module5.2.1-dataflow-part1.pdf https://course.ece.cmu.edu/~ece740/f13/lib/exe/fetch.php?med...