How do I find forbidden latency?

To detect a forbidden latency, one needs simply to check the distance between any 2 checkmarks in the same row of the reservation table. Eg:- similarly latencies 2,4,5 & 7 are all forbidden. Forbidden latencies for function Y are 2 & 4.

What is forbidden latency?

Forbidden Latency: Latencies that cause collisions. Permissible Latency: Latencies that will not cause collisions. Dr.

What is collision latency?

Cause of Collision:- Some latencies cause collision Latency:-The number of time units(clock cycle) between two initiations of a pipeline is the latency between them.

What kind of chart a reservation table indicates?

The Concept of a Reservation Table. A reservation table is a way of representing the task flow pattern of a pipelined sytem. A reservation table has several rows and columns. Each row of the reservation table represents one resource of the pipeline and each column represents one time-slice of the pipeline.

Which one is the greedy cycle of the nonlinear pipeline?

A Greedy Cycle is a simple cycle whose edges are all made with minimum latencies from their respective starting states. The cycle (1, 8) and (3) are greedy cycles. MAL (Minimum Average Latency) is the minimum average latency obtained from the greedy cycle.

What is reservation table in non linear pipeline?

The reservation table is non-trivial in the sense that there is no linear streamline for data flows. Static pipelining is determined by a single Reservation table. Dynamic pipelining is defined by more than one Reservation table. All initiations to a static pipeline use the same reservation table.

How reservation table is used in linear pipelining?

A reservation table is a way of representing the task flow pattern of a pipelined sytem. A reservation table has several rows and columns. Each row of the reservation table represents one resource of the pipeline and each column represents one time-slice of the pipeline.

How do you calculate latency in pipeline?

Pipelining reduces the cycle time to the length of the longest stage plus the register delay. Latency becomes CT*N where N is the number of stages as one instruction will need to go through each of the stages and each stage takes one cycle.

What is simple cycle and greedy cycle?

Formally. A single cycle is a greedy cycle if each latency contained in the cycle is the minimal latency (outgoing arc) from a state in the cycle. Procedure to determine the greedy cycles. 1. From each of the state diagram, one chooses the arc with the smallest latency label unit; a closed simple cycle can formed.

What is forbidden latency in nonlinear pipelining?

Forbidden and Permissible Latency: Latencies that cause collisions are called forbidden latencies. (E.g. in above reservation table 2, 4, 5 and 7 are forbidden latencies). Latencies that do not cause any collision are called permissible latencies. (E.g. in above reservation table 1, 3 and 6 are permissible latencies).