CSC506: Difference between revisions
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= Peer-reviewed Assignment 1 = | = Peer-reviewed Assignment 1 = | ||
* Sections 1.1 and 1.1.2: Update performance trends in | |||
multiprocessors. | multiprocessors. | ||
* Section 1.1.1, first half: Scientific/engineering application | |||
trends. What characterizes present-day applications? How much | trends. What characterizes present-day applications? How much | ||
memory, processor time, etc.? How high is the speedup? | memory, processor time, etc.? How high is the speedup? | ||
* Section 1.1.1, second half: Commercial application trends. | |||
What characterizes present-day applications? How much memory, | What characterizes present-day applications? How much memory, | ||
processor time, etc.? How high is the speedup? | processor time, etc.? How high is the speedup? | ||
* Section 1.1.3: Architectural trends. How have architectures | |||
changed in the past 10 years? Update Figs. 1.8 and 1.9 with new | changed in the past 10 years? Update Figs. 1.8 and 1.9 with new | ||
points, for 2000, 2002, 2004, 2006, and 2007. | points, for 2000, 2002, 2004, 2006, and 2007. | ||
* Section 1.1.4: Supercomputers. Compare current supercomputers | |||
with those of 10 yrs. ago. Update Figures 1.10 to 1.12 with new data | with those of 10 yrs. ago. Update Figures 1.10 to 1.12 with new data | ||
points. For 1.12, consult top500.org. | points. For 1.12, consult top500.org. | ||
* Sections 1.2.1 and 1.2.4: Communication architecture. Trends in | |||
last 10 years. How has data parallelism found its way into shared- | last 10 years. How has data parallelism found its way into shared- | ||
memory and message-passing machines? An early example would be MMX. | memory and message-passing machines? An early example would be MMX. | ||
Would you change the number of layers in Fig. 1.13? | Would you change the number of layers in Fig. 1.13? | ||
* Section 1.2.2: Shared address space. Any changes in the | |||
organization of address spaces in the last 10 years? Are the | organization of address spaces in the last 10 years? Are the | ||
interconnection structures different in new computers now than they | interconnection structures different in new computers now than they | ||
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How have supercomputers evolved since the Cray T3E? | How have supercomputers evolved since the Cray T3E? | ||
* Section 1.2.3: Message passing. Update. Are blade servers an | |||
extension of message passing? How have blade architectures evolved | extension of message passing? How have blade architectures evolved | ||
over the past 10 years? | over the past 10 years? | ||
* Section 1.2.5: Trends in vector processing and array | |||
processing. New machines have recently been announced. Why will | processing. New machines have recently been announced. Why will | ||
this be an important architectural dimension in the coming years? | this be an important architectural dimension in the coming years? | ||
* Section 1.2.6: New developments in dataflow and systolic | |||
architectures, if any. Or if not, why are these styles not evolving | architectures, if any. Or if not, why are these styles not evolving | ||
with time? | with time? | ||
* Sections 1.3.1 and 1.3.2: Communication and programming model. | |||
How have reordering strategies evolved to accommodate larger | How have reordering strategies evolved to accommodate larger | ||
multicomputers? Have new kinds of synchronization operations been | multicomputers? Have new kinds of synchronization operations been | ||
| Line 53: | Line 53: | ||
changed much, but do check. | changed much, but do check. | ||
* Sections 1.3.3 and 1.3.4: Most changes here are probably related | |||
to performance metrics. Cite other models for measuring artifacts | to performance metrics. Cite other models for measuring artifacts | ||
such as data-transfer time, overhead, occupancy, and communication | such as data-transfer time, overhead, occupancy, and communication | ||
cost. Focus on the models that are most useful in practice. | cost. Focus on the models that are most useful in practice. | ||
Revision as of 20:42, 28 August 2007
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Peer-reviewed Assignment 1
- Sections 1.1 and 1.1.2: Update performance trends in
multiprocessors.
- Section 1.1.1, first half: Scientific/engineering application
trends. What characterizes present-day applications? How much memory, processor time, etc.? How high is the speedup?
- Section 1.1.1, second half: Commercial application trends.
What characterizes present-day applications? How much memory, processor time, etc.? How high is the speedup?
- Section 1.1.3: Architectural trends. How have architectures
changed in the past 10 years? Update Figs. 1.8 and 1.9 with new points, for 2000, 2002, 2004, 2006, and 2007.
- Section 1.1.4: Supercomputers. Compare current supercomputers
with those of 10 yrs. ago. Update Figures 1.10 to 1.12 with new data points. For 1.12, consult top500.org.
- Sections 1.2.1 and 1.2.4: Communication architecture. Trends in
last 10 years. How has data parallelism found its way into shared- memory and message-passing machines? An early example would be MMX. Would you change the number of layers in Fig. 1.13?
- Section 1.2.2: Shared address space. Any changes in the
organization of address spaces in the last 10 years? Are the interconnection structures different in new computers now than they were 10 years ago? What is the size and capacity of current SMPs? How have supercomputers evolved since the Cray T3E?
- Section 1.2.3: Message passing. Update. Are blade servers an
extension of message passing? How have blade architectures evolved over the past 10 years?
- Section 1.2.5: Trends in vector processing and array
processing. New machines have recently been announced. Why will this be an important architectural dimension in the coming years?
- Section 1.2.6: New developments in dataflow and systolic
architectures, if any. Or if not, why are these styles not evolving with time?
- Sections 1.3.1 and 1.3.2: Communication and programming model.
How have reordering strategies evolved to accommodate larger multicomputers? Have new kinds of synchronization operations been developed? I doubt that other topics covered in these sections have changed much, but do check.
- Sections 1.3.3 and 1.3.4: Most changes here are probably related
to performance metrics. Cite other models for measuring artifacts such as data-transfer time, overhead, occupancy, and communication cost. Focus on the models that are most useful in practice.