CP5.6 The loop transfer function of a unity negative fecd- back system is 25 L(s) = G(s)G(s) = %3D s(s + 5)* Develop an m-file to plot the unit step response and determine the values of peak overshoot Mp, time to peak Tp, and settling time T, (with a 2% criterion).
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- Write an MPI program segment for all-to-all personalized broadcast on a ring of p processors, eachprocessor Pi, 0 ≤ i ≤ p − 1, holding M(i, 0), M(i, 1), ·M(i,(p − 1)). Message M(i, j), an integer, is destinedfrom Pi to Pj . Show only the p − 1 iterative loop. Ensure proper buffer size, MPI message size, howitems are organized and ordered at the destination buffer, etc., through each loop.A computer uses virtual memory, and a new solid-state drive (SSD) as space for paging. Refer to the last ppt file. In the case presented there, the hard disk drive (HDD) required 25 ms to read in a page, and a rate of 1 page fault per 1000 references introduced a 250 slowdown. If the SSD offers a time of only 80 µs, what is the slowdown in performance caused by 1 pf per 1000 references (you are not concerned with dirty vs. clean pages). What is the maximum rate of page faults you can accept if you want no more than a 5% slowdown in execution using virtual memory? Know your metric prefixes and symbols for time: s for seconds, ms for milliseconds, µs for microseconds, ns for nanoseconds.Suppose you have a finite state machine that accepts bit strings divisible by 11. The FSM has 11 states R0, R1, ... , R10, each corresponding to the remainder when dividing by 11. Input is fed to the FSM one bit at a time from left to right, the same way we did in our in-class examples. If the machine is currently in state R7, an input of 1 should transition it to which state? Type the subscript only of the new state. Your answer should be an integer between 0 and 10, inclusive.
- A zero memory source has a source alphabet S = {s1, s2, s3}, with P = {1/4, 1/8, 5/8}. Find the entropy of the source H (S). Find the entropy of the second H (S2) extension and verify; then Find H(S4) and H(S11)?1. In a certain device, the disk rotates at 5000rpm. a) how long does one revolution take? b) what is the average rotational delay of this disk drive 2. Consider a disk dirve with 1000 tracks, numbered 0 to 999. The request queue has the following composition: 300 740 150 940 200 850 145 555 775 695. The current position is 197 and the previous request was served at 100. For each of the following disk scheduling algorithsm, compute the total distance (in tracks) that the disk arm would move. Include the calculation steps in your answers. 2.1 First - In-First-Out (FIFO) 2.2 Shortest - Service-Time - First (SSTF) 2.3 SCAN (no LOOK variation) 2.4 C-SCAN (No C-LOOK variation)4. (a) Suppose the encoding matrix is1−3 − 3 − 40 1 14 3 43Use the encoding matrix above to encode the messageGOOD LUCKUsing 1 for the letter A, 2 for B,….26 for Z and 27 for space.(b) Decode the encoded message(-19, -61, 83, -34, -111, 136, -35, -101, 119,-29,-83,84)using the following decoding matrix10 1 15 − 3 − 1−3 2 13What does the message say?
- 4.25 Consider the following loop. LOOP: LDUR X10, [X1, #0] LDUR X11, [X1, #8] ADD X12, X10, X11 SUBI X1, X1, #16 CBNZ X12, LOOP Question) Assume that perfect branch prediction is used (no stall due to control hazard), that it has full forwarding support, and that branches are resolved in the ID stage. Show a pipeline execution time diagram for the first two iterations of this loop. please explain with IF,ID,EX, MEM,WB figure thank youQ1. Give a comparison of FIFO, LRU and OPTIMAL algorithms in term of Page faults with three and four frames in each case for the reference string of pages duly demanded in Main Memory. Reference String: 2, 3, 3, 2, 1, 4, 0, 0, 3, 2, 1, 1, 2, 3, 4PROVIDE THE SOURCE CODE FOR LINUX C WITH OUTPUT Write a program to implement page replacement technique. Consider a reference string: 4, 7, 6, 1, 7, 6, 1, 2, 7, 2. the number of frames in the memory is 3. Find out the number of page faults respective to: a. Optimal Page Replacement Algorithm b. FIFO Page Replacement Algorithm c. LRU Page Replacement Algorithm
- (Practice) Although the total number of bytes varies from computer to computer, memory sizes of millions and billions of bytes are common. In computer language, the letter M representsthe number 1,048,576, which is 2 raised to the 20th power, and G represents 1,073,741,824, which is 2 raised to the 30th power. Therefore, a memory size of 4 MB is really 4 times 1,048,576 (4,194,304 bytes), and a memory size of 2 GB is really 2 times 1,073,741,824 (2,147,483,648 bytes). Using this information, calculate the actual number of bytes in the following: a. A memory containing 512 MB b. A memory consisting of 512 MB words, where each word consists of 2 bytes c. A memory consisting of 512 MB words, where each word consists of 4 bytes d. A thumb drive that specifies 2 GB e. A disk that specifies 4 GB f. A disk that specifies 8 GB4.25 Consider the following loop. LOOP: lw $s0, 0($s3) lw $s1, 8($s3) add $s2, $s0, $s1 addi $s3, $s3, -16 bnez $s2, LOOP Assume that perfect branch prediction is used (no stalls due to control hazards), that there are no delay slots, that the pipeline has full forwarding support, and that branches are resolved in the EX (as opposed to the ID) stage. 4.25.1 [10] <§4.8> Show a pipeline execution diagram for the first two iterations of this loop. Mark pipeline stages that do not perform useful work.Consider a demand-paging system with a paging disk that has an average access and transfer time of 25 milliseconds. Addresses are translated through a page table in main memory, with an access time of 1 microsecond per memory access. Thus, each memory reference through the page table takes two accesses. To improve this time, we have added an associative memory that reduces access time to one memory reference if the page-table entry is in the associative memory. Assume that 75 percent of the accesses are in the associative memory and that, of those remaining, 10 percent (or 2.5 percent of the total) cause page faults. What is the effective memory access time?