If your task is I/O bound, meaning that the thread spends most of its time handling I/O such as performing network requests. It is still perfectly fine to use multi-threading as the thread is, most of the time, being blocked and put into blocked queue by the OS. Thread is also alwa...
In our semantics for CC programs, the meaning of a program is in fact a net where the concurrency present in all computations, as well as the nondeterminism, can be naturally seen. We will also point out several extension of the basic semantics, that can be used for more complex classes ...
An important part of concurrent programming is dealing with blocking when we need to wait for some condition to be true, or to acquire a particular resource. STM provides an ingenious way to do this with a single operation: retry :: STM a The meaning of retry is simply “abandon the curr...
even if the spawned Goroutine's key is held in the bucket we are currently iterating over, they will just be blocking on us (meaning, it is NOT SAFE to block on a spawned child accessing the map). Unfortunately, this invariant is something which is mandatory and cannot be side-stepped...
The thesis gives a brief account of concurrent engineering ,and explains its meaning ,discuss its principles ,characteristic and applying process; and anal... MA Shi-Xiao,GZ Zhang,XU Wan-Hong,... - 《Machinery Design & Manufacture》 被引量: 6发表: 2003年 ...
The word message should be understood in an information theoretical sense, rather than the more narrow meaning used in computer networks context. Embarrassingly parallel activities can proceed without message exchanges and enjoy linear or even superlinear speedup, while in all other cases, the completion...
In programming language terminology, an environment is a mapping that assigns some meaning to the variables of an expression. A type inference engine uses an environment to assign types to variables; this is the purpose of the Env type. When we typecheck an expression, we must supply an Env...
multiple programs at the same time. A single CPU can not execute instructions from multiple programs simultaneously. But in concurrent processing paradigm a CPU can execute multiple programsconcurrently, meaning when instructions from one program is executing then instructions from ...
Linearizability provides the illusion that each operation applied by concurrent processes takes effect instantaneously at some point between its invocation and its response, implying that the meaning of a concurrent object's operations can be given by pre- and post-conditions. This paper defines ...
We propose a programming regime (or programming model) for concurrent programming in Java-like languages, and the design of a set of program annota- tions that make the use of the programming model explicit. For instance, a de- veloper can annotate their code to make explicit whether an ...