Forbidden latency in computer architecture

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

1. What is forbidden latency in nonlinear pipelining?
2. What is collision latency?
3. What is collision vector in computer architecture?
4. How do I find forbidden latency?
5. What is latency in advanced computer architecture?
6. What is forbidden latency?
7. What is collision free scheduling in computer architecture?
8. How do you calculate latency in pipeline?
9. What is greedy cycle in computer architecture?
10. Why pipelining is used in computer architecture?
11. How is pipeline throughput calculated?
12. What is simple cycle in graph?
13. What do you mean by reservation table in computer architecture?
14. What is the importance of register tagging in pipelined processors?
15. What is the speed up factor of N stage pipeline Mcq?

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).

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 is collision vector in computer architecture?

The collision vector is a method of analyzing how often we can initiate a new operation into the pipeline and maintain synchronous flow without collisions. ... If a collision occurs, record a 1 bit, if a collision does not occur, record a 0 bit.

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 latency in advanced computer architecture?

Latency is the amount of time a message takes to traverse a system. In a computer network, it is an expression of how much time it takes for a packet of data to get from one designated point to another. It is sometimes measured as the time required for a packet to be returned to its sender.

What is forbidden latency?

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

What is collision free scheduling in computer architecture?

COLLISION FREE SCHEDULING:When scheduling events in a nonlinear pipeline, the main objective is to obtain the shortest average latency between initiations witliout causing collisions.

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 greedy cycle in computer architecture?

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.

Why pipelining is used in computer architecture?

Pipelining is the use of a pipeline. ... With pipelining, the computer architecture allows the next instructions to be fetched while the processor is performing arithmetic operations, holding them in a buffer close to the processor until each instruction operation can be performed.

How is pipeline throughput calculated?

3 Answers. Normal average execution time = (0.4 * 4 + 0.2 * 5 + 0.4 * 6) * 10ns = 50 ns. So, MIPS=10−650×10−9=20. Clock time with pipeline = 10 + 2 = 12 ns.

What is simple cycle in graph?

A simple cycle is a cycle in a Graph with no repeated vertices (except for the beginning and ending vertex). Basically, if a cycle can't be broken down to two or more cycles, then it is a simple cycle.

What do you mean by reservation table in computer architecture?

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.

What is the importance of register tagging in pipelined processors?

Register renaming technique is used to eliminate false data dependencies arising from the reuse of registers by successive instructions that do not have any real data dependencies between them.

What is the speed up factor of N stage pipeline Mcq?

Instruction Pipeline MCQ Question 2 Detailed Solution

Concept: Speed up factor is defined as the ratio of time required for non-pipelined execution to that of time received for pipelined execution.