SERVER VIRTUALIZATION - Parallel Processing, Vector Processing
SERVERVIRTUALIZATION
Virtualization is a method of running multiple independent virtual
operating systems on a single physicalcomputer.
This approach maximizes the return on investment for thecomputer.
Virtualization technology is a way of reducing the majority of hardware
acquisition and maintenance costs, which can result in significant savings for
anycompany.
ParallelProcessing
VectorProcessing
Symmetric MultiprocessingSystems
Massively Parallel ProcessingSystems
Parallel Processing
Parallel processing is performed by the simultaneous execution of
program instructions that have been allocated across multipleprocessors.
Objective: running a progran in lesstime.
The next advancement in parallelprocessing-multiprogramming
In a multiprogramming system, multiple programs submitted by users but
each allowed to use the processor for a short time.
This approach is known as "round-robin scheduling”(RRscheduling)
Vector Processing
Vector processing was developed to increase processing performance by operating
in a multitaskingmanner.
Matrix operations were added to computers to perform arithmeticoperations.
This was valuable in certain types of applications in which data
occurred in the form of vectors ormatrices.
In applications with less well-formed data, vector processing was lessvaluable.
Symmetric Multiprocessing Systems
Symmetric multiprocessing systems (SMP) was developed to address the
problem of resource management in master/slavemodels.
In SMP systems, each processor is equally capable and responsible for
managing the workflow as it passes through thesystem.
The primary goal is to achieve sequentialconsistency
Massively Parallel Processing Systems
In Massively Parallel Processing Systems, a computer system with many
independent arithmetic units, which run inparallel.
All the processing elements are interconnected to act as one very largecomputer.
Early examples of MPP systems were the Distributed ArrayProcessor, the
Goodyear MPP, the Connection Machine, and theUltracomputer
MPP machines are not easy to program, but for certain applications,
such as data mining, they are the bestsolution
