Friday, November 23, 2007

Assignment Parallel Processing


Ques.1 Which of the computer use a single processor?
Personal Computer
Parallel Computer
Cray Computer

Ques.2 Travel Agents access this computer system when receiving flights.
Super Computer
Personal Computer
Mainframe Computers

Ques.3 Which of the computers used in the weather forecasting system?
Notebook Computer
Super Computer
Jon Von Neumann Computer

Ques.4 Which computers are connected to many terminals and can multitask?
PC running MS Dos
Minicomputers
Leo /Computers

Ques.5 How many number of users can work on a minicomputer?
No Limit
200 Users
1000 users

Ques.6 _________ is used as a measure of computer’s performance especially in the field of scientific computing that makes use of heavy floating point calculations.
FLOPS
G Hertz
Terabytes

Ques.7 ___________computer's abilities are defined by their massive internal memory, large, high-capacity external storage, fast high-throughput I/O, high-quality internal engineering and expensive but high-quality technical support.
Mainframe
Super Computers
Laptops
Personal Computer

Ques.8 Mainframe computers are multi-tasking and generally used in areas where large __________ are maintained.
databases
Multiple Threads
Serialized Classes
Ques.9 _______ are used for interacting with mainframe systems remotely.
Dumb terminals
Personal Computers
Handhelds
Notebook

Ques.10 The _____________ large number of processors, enormous disk storage, and substantial memory greatly increase the power and speed of the machine.
A . Supercomputer's
B . Mainframe ‘s
C . Embeded Computer’s


Subjective Questions


Ques.1 How can High speed Computing be achieved?

Ans. High speed computing can be achieved by High Performance computing technique which is employed as a branch of computer science that concentrates on developing supercomputers and software to run on supercomputers. A main area of this discipline is developing parallel processing algorithms and software: programs that can be divided into little pieces so that each piece can be executed simultaneously by separate processors.
Ques.2 What are High Performance Computing Clusters?

Ans. High Performance Computing Cluster (HPCC) combines multiple Symmetric Multi-Processor (SMP) computer systems together with high-speed interconnects to achieve the raw-computing power of classic "big-iron" supercomputers. These systems work in tandem to complete a single request by dividing the work among the server nodes, reassemble the results and present them to the client as if a single-system did the work.
The HPC clusters are used for solving the most challenging and rigorous engineering tasks facing the present era. The parallel applications running on HPC are both numeric and data intensive and require medium to high-end industry standard computing resources to fulfill today's computational needs. Since HPC has such a strong implementation, the demand for it is growing at a tremendous speed and is becoming highly popular in all aspects.

Ques.3 Write Down the applications of Supercomputers?

Ans. Supercomputers are so powerful that they can provide researchers with insight into phenomena that are too small, too big, too fast, or too slow to observe in laboratories. For example, astrophysicists use supercomputers as "time machines" to explore the past and the future of our universe. A supercomputer simulation was created in 2000 that depicted the collision of two galaxies: our own Milky Way and Andromeda. Although this collision is not expected to happen for another three billion years, the simulation allowed scientists to run the experiment and see the results now. This particular simulation was performed on Blue Horizon, a parallel supercomputer at the San Diego Supercomputer Center. Using 256 of Blue Horizon's 1,152 processors, the simulation demonstrated what will happen to millions of stars when these two galaxies collide. This would have been impossible to do in a laboratory.
Another example of supercomputers at work is molecular dynamics (the way molecules interact with each other). Supercomputer simulations allow scientists to dock two molecules together to study their interaction. Researchers can determine the shape of a molecule's surface and generate an atom-by-atom picture of the molecular geometry. Molecular characterization at this level is extremely difficult, if not impossible, to perform in a laboratory environment. However, supercomputers allow scientists to simulate such behavior easily.
Beside this supercomputers are also used in weather forecasting. To estimate the weather in the coming days/weeks.

Ques.4 Write down the configuration of an existing mainframe computer?

Ans. IBM Mainframe Computer S/390 Parallel Enterprise Server
Hardware

Processor technology Air-cooled S/390 CMOS

Architecture IBM S/390

Number of processors 9672-R11:1
9672-R21:2
9672-R31:3
9672-R41:4
9672-R51:5
9672-R61:6
Channels
Minimum 3
Maximum 48
Increments Channels are available in increment of 3
General Parallel Channel, ESCON and ESCON XDF
(Extended Distance Feature) are available

Processor Storage
Minimum 128 MB
Maximum 2048 MB
Options 256 MB
512 MB
1024 MB
2048 MB
Physical configuration

Minimum 1 Frame
Weight: 540 Kgs.
Footprint: 1.0 M ²
Service Clearance: 2.5 M ²
Input Power: 1.4 KVA
Heat Output: 1.3 kW

Maximum 2 Frame
Weight: 1040 Kgs.
Footprint: 1.8 M ²
Service Clearance: 4.8 M ²
Input Power: 2.3 KVA
Heat Output: 2.1 kW

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