In this paper we investigate and build up three methods for transforming sequential processes of a net system into concurrent ones. These methods are based on: trace languages, shiftleft and case graphs. They are also presented by detail algorithms and can be applied to other models of concurrent systems. Keywords: net system, reliance alphabet, trace language, maximal concurrent steps, case graph. 1. Introduction
The behaviour of a system often is represented by the set of the system’s processes. ...
If you're looking to take full advantage of multi-core processors with concurrent programming, this practical book provides the knowledge and hands-on experience you need. The Art of Concurrency is one of the few resources to focus on implementing algorithms in the shared-memory model of multi-core processors, rather than just theoretical models or distributed-memory architectures.
Concurrent Programming introducing some principles of reentrancy, mutual exclusion and thread synchronization: Problems with ‘stash.c’, One cure is communication, Kernel semaphores, Mutual-exclusion syntax, struct file_operations.
With the introduction of multicore devices such as the iPad 2 and the quad-core Mac-
Book Pro, writing multithreaded apps that take advantage of multiple cores on a device
has become one of the biggest headaches for developers. Take, for instance, the introduction
of iPad 2. On the launch day, only a few applications, basically those released
by Apple, were able to take advantage of its multiple cores. Applications like Safari
performed very well on the iPad 2 compared to the original iPad, but some third-party
browsers did not perform as well as Safari.
Erlang solves one of the most pressing problems facing developers today: how to write reliable, concurrent, high-performance systems. It's used worldwide by companies who need to produce reliable, efficient, and scalable applications. Invest in learning Erlang now.
Moore's Law is the observation that the amount you can do on a single chip doubles every two years. But Moore's Law is taking a detour.
Surrounded as we are by software for personal computers, electronic gadgets
and entertainment websites, it is easy to lose sight of the massive amount of
software embedded in critical systems. I was surprised when I found out
that the computerized systems in modern cars have half a million lines of
code, and that electronics account for 25% of their cost and this percentage is
forecast to increase.
When the predicates table does not fit on one node, joins
can no longer be performed strictly locally. Instead, the
table must be horizontally partitioned. A tuple can only
immediately join with the local partition at the node and
must be shipped to other nodes to complete the join. Once
the original tuple has reached every node that contains a
partition of the table, it can be dropped and results can be
forwarded to the root.
When you create a geodatabase, as you did in Exercise Add a database
server to the Catalog tree and create a geodatabase, there is no data in it.
You must add data to new geodatabases either by creating new datasets,
importing data, or copying data from one geodatabase and pasting it into
In this exercise, you will create a feature dataset, then import data from a
personal geodatabase to populate it. You will also copy data from a file
geodatabase and paste it into your new geodatabase. After the data is
loaded, you will update the database statistics....
A Windows Phone application can start a “background agent” to work for it. It is a PeriodicTask, ResourceIntensiveTask or both at the same time.There is only one agent allowed per application. The agent can run when the main application is not in the foreground
NX is one of the world’s most advanced and tightly integrated CAD/CAM/CAE product
development solutions. Spanning the entire range of product development, NX delivers immense
value to enterprises of all sizes. It simplifies complex product designs, thus speeding up the
process of introducing products to the market.
The NX software integrates knowledge-based principles, industrial design, geometric modeling,
advanced analysis, graphic simulation, and concurrent engineering.
The last decade has been one of rapid, profound, and
ongoing change in the investments industry. This is
due in part to an abundance of newly designed
securities, in part to the creation of new trading
strategies that would have been impossible without
concurrent advances in computer and communications
technology, and in part to continuing advances in the
theory of investments. Of necessity, our text has
evolved along with the financial markets. In this
edition, we address many of the changes in the
MODEL CHECKING OF FINITE-STATE SYSTEMS
One way to show that a program or system meets the designer’s speciﬁcation is to manually construct a proof using axioms and inference rules in a deductive system such as temporal logic, a ﬁrst-order logic capable of expressing relative ordering of events. This traditional, manual approach to concurrent program veriﬁcation is tedious and error-prone even for small programs.
Step by Step instructions to install Oracle Applications R12(12.1.1) on Oracle Enterprise Linux 5 are described in this article. This is a single node installation, meaning that the database, all product directories and AD core directories, and all servers (concurrent processing, forms, and Web) are installed on a single node under one common APPL_TOP.
The database node and the Applications node can be installed on the same machine. This type of installation is generally used for small systems or for demonstration purposes.
The last decade has been one of rapid, profound, and ongoing change in the investments industry. This is due in part to an abundance of newly designed securities, in part to the creation of new trading strategies that would have been impossible without concurrent advances in computer and communications technology, and in part to continuing advances in the theory of investments. Of necessity, our text has evolved along with the financial markets. In this edition, we address many of the changes in the investment environment....
Oracle Enterprise Manager 10g Grid Control Implementation Guide
and many other types of targets as well. It is best practice to run either Grid Control or Database Control, but not both, although you can run both concurrently.
Grid Control vs. AS Control
How is Grid Control different from Application Server (AS) Control? In short, as just one of many target types it monitors, Grid Control monitors the Oracle Application Server, whereas AS Control administers the Oracle Application Server.
It was our great pleasure to welcome you to the 17th Annual International
Symposium on Algorithms and Computation (ISAAC 2006), which was held
for the first time in Kolkata (formerly known as Calcutta), during December
18–20, 2006. This is the second ISAAC meeting organized in India; the first one
was held in the city of Chennai in 1999. This symposium provided an excellent
opportunity for sharing thoughts among the participants on the recent advances
in algorithm design and their manifold applications to emerging areas.
Although many other models of concurrent and distributed systems have been developed
since the introduction in 1964 Petri nets are still an essential model for
concurrent systems with respect to both the theory and the applications.
The main attraction of Petri nets is the way in which the basic aspects of concurrent
systems are captured both conceptually and mathematically. The intuitively appealing
graphical notation makes Petri nets the model of choice in many applications.
The BA/BBS and the BBS/BSc conjoint degree
qualifications allow you to graduate with both degrees
at the end of four years of full-time study. You must study
for both degrees concurrently. This means taking at least
one paper from each degree each year. To remain in the
qualification, you must maintain a Grade Point Average
(GPA) of at least 4.0 (equivalent to a B- grade) each year.
The circle tangent to one side of a triangle and to the extensions of the other two sides is called an excircle of the triangle. Hach triangle has three excircles. The center of an excircle (an excenter) is the point of concurrency of two external angle bisectors and an interior angle bisector.