5. Please use an example to explain the following block placement strategies. 1. Direct mapped. 2....
5. Please use an example to explain the following block placement strategies.
1. Direct mapped.
2. Fully associative.
3. Set associative.
Homework Answers
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5. Please use an example to explain the following block
placement strategies.
1. Direct mapped.
2....
4 blocks, direct-mapped, 1 word per cache line Reference sequence: 4,8,12,4,8,20,4,888,20,24,12,8,4 Find the number of Compulsory,...
4 blocks, direct-mapped, 1 word per cache line Reference sequence: 4,8,12,4,8,20,4,888,20,24,12,8,4 Find the number of Compulsory, capacity, and confilict misses. Also, when It becomes fully associative cache and 2 set-associative cache. Please explain specifically.
Make an assumption that your cache is either: Fully associative Direct mapped Two-way set-associative Four-way set-associative...
Make an assumption that your cache is either: Fully associative Direct mapped Two-way set-associative Four-way set-associative determine: the size of the Tag and Word for Associative cache; OR the size of the Tag, Line, and Word for Direct-Mapped Cache ; Or the size of Tag, Set, and Word for K-Way Set-Associative Cache. You may make any assumptions necessary including the number of Words in each block (recommend 2 or 4 or 8)
Systems Programming problem: Consider a processor with the following parameters Base CPI (no Memory Stall) Clock rate L1 miss rate L2 Direct Mapped speed L2 Direct Mapped miss rate L2 8-way set asso...
Systems Programming problem:
Consider a processor with the following parameters Base CPI (no Memory Stall) Clock rate L1 miss rate L2 Direct Mapped speed L2 Direct Mapped miss rate L2 8-way set associative speed L2 8-way set associative miss rate 1. 1.5 2 GHz 12 cycles 3.5% 28 cycles 1.5% Main Memory Access Time = 50 ns Calculate the CPI with L1 only * Calculate the CPl with L1 and L2 Direct Mapped Calculate the CPI with L1 and L2...
Find a wrong description about associative cache. 1-way set associative cache is identical to the direct...
Find a wrong description about associative cache. 1-way set associative cache is identical to the direct mapped cache Each cache block contains one valid bit and one tag regardless of the number of data blocks Fully associative cache requires all entries to be searched at once Associative cache can decrease miss rate compared to direct mapped cache
We can determine if a requested word is in the cache by looking at the? 1.index...
We can determine if a requested word is in the cache by looking at the? 1.index 2.block 3.low order bits 4.tag in a ________ cache, a block an be placed at any location. 1.direct-mapped 2.fully associative 3.set associative 4.non of the above
Text: Explain how a 32-bit byte memory address should be divided into Tag/Index/Offset fields for each...
Text:
Explain how a 32-bit byte memory address should be divided into
Tag/Index/Offset fields for each of the cache configurations below.
Note: 1KB = 210 bytes. You must explain how many bits to assign to
each field and the ordering of the three fields. You get at most
50% of the credit if you give the length of each field without an
explanation.
1) A fully associative cache with cache block size = 2 words and
cache size = 512KB....
QUESTION 11 Assume a direct mapped cache with a block size of 64 2 to the...
QUESTION 11 Assume a direct mapped cache with a block size of 64 2 to the 6th and 1K sets to the 10th. What is the set number for hex address A3F2E97 Express the answer in decimal
question 2 and 3 2. Determine how many sets of cache blocks will be there for...
question 2 and 3
2. Determine how many sets of cache blocks will be there for the following Cache memory size (in bytes) Direct Mapped Blocks Size (in bits) 32 64 218 2-way Set Associative Block Size (in bits) 32 64 A 2A6 [0.5 * 16 = 8] 4-way Set Associative Block Size (in bits) 32 64 SK 64K 256K 3. The physical memory address generated by a CPU is converted into cache memory addressing scheme using the following mapping...
Example on Cache Placement & Misses - Can someone explain to me how this is done....
Example on Cache Placement & Misses -
Can someone explain to me how this is done.
Solution is posted
Consider a small direct-mapped cache with 32 blocks - Cache is initially empty, Block size = 16 bytes - The following memory addresses (in decimal) are referenced: 0x3E8, 0x3EC, 0x3F0, 0x9F4, 0x9F8. 0x9FC. - Map addresses to cache blocks and indicate whether hit or miss Solution - 0x3E8 cache index = 0x1 E Miss (first access) - 0x3EC cache index =...
Assume a 16-word cache works on the following repeating sequence of lw addresses in hexadecimal. 40 44 48 4C 70 74 78 7C 80 84 88 8C 90 94 98 9C 0 4 8 C 10 14 18 1C 20 Based on this particular sequenc...
Assume a 16-word cache works on the following repeating sequence of lw addresses in hexadecimal. 40 44 48 4C 70 74 78 7C 80 84 88 8C 90 94 98 9C 0 4 8 C 10 14 18 1C 20 Based on this particular sequence of memory accesses, answer the following questions. 5.A.) (5 POINTS) What will be the cache placement of this sequence for a direct mapped with S = 16, b = 1 word cache organization? Please show...
Systems Programming problem:
Consider a processor with the following parameters Base CPI (no Memory Stall) Clock rate L1 miss rate L2 Direct Mapped speed L2 Direct Mapped miss rate L2 8-way set associative speed L2 8-way set associative miss rate 1. 1.5 2 GHz 12 cycles 3.5% 28 cycles 1.5% Main Memory Access Time = 50 ns Calculate the CPI with L1 only * Calculate the CPl with L1 and L2 Direct Mapped Calculate the CPI with L1 and L2...
Text:
Explain how a 32-bit byte memory address should be divided into
Tag/Index/Offset fields for each of the cache configurations below.
Note: 1KB = 210 bytes. You must explain how many bits to assign to
each field and the ordering of the three fields. You get at most
50% of the credit if you give the length of each field without an
explanation.
1) A fully associative cache with cache block size = 2 words and
cache size = 512KB....
QUESTION 11 Assume a direct mapped cache with a block size of 64 2 to the 6th and 1K sets to the 10th. What is the set number for hex address A3F2E97 Express the answer in decimal
question 2 and 3
2. Determine how many sets of cache blocks will be there for the following Cache memory size (in bytes) Direct Mapped Blocks Size (in bits) 32 64 218 2-way Set Associative Block Size (in bits) 32 64 A 2A6 [0.5 * 16 = 8] 4-way Set Associative Block Size (in bits) 32 64 SK 64K 256K 3. The physical memory address generated by a CPU is converted into cache memory addressing scheme using the following mapping...
Example on Cache Placement & Misses -
Can someone explain to me how this is done.
Solution is posted
Consider a small direct-mapped cache with 32 blocks - Cache is initially empty, Block size = 16 bytes - The following memory addresses (in decimal) are referenced: 0x3E8, 0x3EC, 0x3F0, 0x9F4, 0x9F8. 0x9FC. - Map addresses to cache blocks and indicate whether hit or miss Solution - 0x3E8 cache index = 0x1 E Miss (first access) - 0x3EC cache index =...
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