Note : Question one is compulsory. Answer any three from
the rest.
1. (a) What is superpipelining? How is it different
from Superscalar pipeline?
(b) Analyse the data dependence of the statements of
the following program:
S1: Load RA, M[20] /RA ¬ M[20] /
S2: Load RB, M[25] /RB ¬ M[25] /
S3: Sub RA, RB /RA ¬ RA- RB /
S4: Mult RA, 5 /RA ¬ RA * 5 /
S5: STORE M[20], RA /M[20] ¬ RA /
Draw the dependence graph for the dependencies.
(c) What are the limitations of conventional UNIX for
parallel processing systems?
(d) Compare and contrast the cache Associative and
sector caches.
(e) Discuss the architecture environment for a Multi-threaded
computer model.
(f) What is m-way memory interleaving? Discuss the
c-access memory scheme.
2. Discuss the following terms in the context of computer
architecture:
(a) Systolic arrays
(b) Multiprocessing requirements at processor level
(c) Scalability
(d) Cross bar switch
(e) VLIW architecture
3.(a) What are the differences between static and dynamic
dataflow Computers?
(b) Compare and contrast the central and distributed
bus arbitration schemes.
(c) What is multivector computing? How is it useful
for supercomputers?
4. (a) What are the different types of vector instructions?
Discuss.
(b) What is meant by Cache-Only Memory Architecture
(COMA) model? How is it different from non-uniform-memory-access
model?
(c) What is meant by hierarchical bus system for multiprocessing
systems?
5. Write short notes on the following in the context
of computer architecture:
(i) Multifunctional pipelines
(ii) Monitors
(iii) Multicomputers
(iv) Clock rate, MIPS rate and throughput
(v) Branch handling in instruction pipeline
6. Discuss the following in the context of parallel
languages and compilers:
(i) Parallel code generation
(ii) Parallel flow control
(iii) Parallel arrays
(iv) Synchronization and communication features needed
in parallel languages
(v) Process management features needed for parallel
languages
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