Streaming processor (SP) - Answer-the primary thread instruction processor in the
multiprocessor
Special function unit (SFU) - Answer-Compute 32-bit floating-point approximations to
reciprocal, reciprocal square root, and key transcendental functions. It also implements
32-bit floating-point planar attribute interpolation for pixel shaders, providing accurate
interpolation of attributes such as color, depth, and texture coordinates.
Uniform Memory Access (UMA) - Answer-A multiprocessor in which latency to any word
in main memory is about the same no matter which processor requests the access.
Non-Uniform Memory Access (NUMA) - Answer-Varying system memory access times,
because of system hardware.
throughput - Answer-the amount of work performed by a system during a given period
of time
CPU Time Formula - Answer-(Instructions) x (CPI) x (Clock Cycle Time)
Set Associative Cache - Answer-A cache that has a fixed number of locations (at least
two) where each block can be placed
(Block number) modulo (Num set in the cache)
Variable
one-way - Original set
two-way - Will improve overall performance
four-way
eight-way
,Fully associative cache - Answer-A cache structure in which a block can be placed in
any location in the cache.
CDC 6600 - Answer-This system is widely considered to have been the first
supercomputer. Also first load-store architecture
Tomasulo's Algorithm - Answer-An algorithm for dynamic scheduling and out-of-order
execution
uses dynamic hazard detection, generalized forwarding, and reservation stations.
IBM 7030 - Answer-AKA Stretch
Produced with the goal of being 100 times faster than the previous IBM 704
Imprecise interupt - Answer-The unpopularity of imprecise interrupts led to the standard
of commit units in dynamically scheduled pipelined processors
Digital Equipment Corporation (DEC) - Answer-A major American company in the
computer industry from the 1950s to the 1990s
PDP-8 - Answer-First commercial minicomputer introduced by Digital Equipment
Corporation
Seymour Cray - Answer-American inventor of the Cray supercomputer.
Least Significant Bits - Answer-The two bits furthest to the right
most significant bit - Answer-left most bit
Sign and magnitude representation - Answer-a signed number representation where a
single bit is used to represent the sign and the remaining bits represent the magnitude
sign extension - Answer-function of a copy signed load is to copy the sign repeatedly to
fill the rest of the register
LEGv8 fields - Answer-1. opcode - 11 bits - basic operation of the instruction
2. rm - 5 bits - the second register source operand
3. shamt - 6 bits - shift amount
4. rn - 5 bits - the first register source operand
In MIPS, two registers are compared and the result of the comparison is stored in a third
register. Then a conditional branching statement assess the value of the third register to
see if the condition is true or false.
Negative (N)
Zero (Z)
Overflow (V)
Carry (C)
B.MI - Answer-branch on minus
N=1
B.PL - Answer-branch on plus
N=0
B.VS - Answer-branch on overflow set
V=1
B.VC - Answer-branch on overflow clear
V=0
branch-and-link instruction - Answer-An instruction that branches to an address
simultaneously saves the address of the following instruction in a register
(LR or X30 in LEGv8).
Return address - Answer-A link to the calling site that allows a procedure to return to the
proper address; in MIPS it is stored in register
LR (X30)
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