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Scoreboarding is a centralized method, first used in the CDC 6600 computer, for dynamically scheduling instructions so that they can execute out of order when there are no conflicts and the hardware is available. [1] In a scoreboard, the data dependencies of every instruction are logged, tracked and strictly observed at all times.
Tomasulo's algorithm. Tomasulo's algorithm is a computer architecture hardware algorithm for dynamic scheduling of instructions that allows out-of-order execution and enables more efficient use of multiple execution units. It was developed by Robert Tomasulo at IBM in 1967 and was first implemented in the IBM System/360 Model 91 ’s floating ...
A scoreboard is a large board for publicly displaying the score in a game. [citation needed] Most levels of sport from high school and above use at least one scoreboard for keeping score, measuring time, and displaying statistics. Scoreboards in the past used a mechanical clock and numeral cards to display the score.
The first machine to use out-of-order execution was the CDC 6600 (1964), designed by James E. Thornton, which uses a scoreboard to avoid conflicts. It permits an instruction to execute if its source operand (read) registers aren't to be written to by any unexecuted earlier instruction (true dependency) and the destination (write) register not be a register used by any unexecuted earlier ...
Hazard (computer architecture) In the domain of central processing unit (CPU) design, hazards are problems with the instruction pipeline in CPU microarchitectures when the next instruction cannot execute in the following clock cycle, [1] and can potentially lead to incorrect computation results. Three common types of hazards are data hazards ...
The instruction cycle (also known as the fetch–decode–execute cycle, or simply the fetch–execute cycle) is the cycle that the central processing unit (CPU) follows from boot-up until the computer has shut down in order to process instructions. It is composed of three main stages: the fetch stage, the decode stage, and the execute stage.
A balanced scorecard is a strategy performance management tool – a well-structured report used to keep track of the execution of activities by staff and to monitor the consequences arising from these actions.
In an 2014 article for SB Nation, Jon Bois defined Scorigami as "the act, and art, of producing a final score in a football game that has never happened before." [2] In football, points can be scored by touchdowns (6), field goals (3), and safeties (2), with teams able to score 1 or 2 points on extra-point attempts after touchdowns.
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