am2 processors

Transferred from: http://www.cnblogs.com/soroman/archive/2008/03/21/1115571.htmlThinking: Matrices and transformations, and the use of matrices in DirectX and OpenGL1. Matrix and Linear transformations: one by one correspondenceA matrix is a tool used to represent a linear transformation, which corresponds to a linear transformation of one by one.Consider a linear transformation:a11*x1 + a12*x2 + ... +a1n*xn = X1 'a21*x1 + a22*x2 + ... +a2n*xn = X2 '...am1*x1 +

autoreload can be passed to specify whether to automatically re-import the Python module. This is useful during debugging, but we can ignore it when analyzing the main process. The application class initialization code is as follows: class application: def __init__(self, mapping=(), fvars={}, autoreload=None): if autoreload is None: autoreload = web.config.get('debug', False) self.init_mapping(mapping) self.fvars = fvars self.processors = [] self.add_processor(loadhook(self

routing tuples and globals. In addition, the third variable autoreload can be passed to specify whether to automatically re-import the Python module. This is useful during debugging, but we can ignore it when analyzing the main process. The application class initialization code is as follows: class application: def __init__(self, mapping=(), fvars={}, autoreload=None): if autoreload is None: autoreload = web.config.get('debug', False) self.init_mapping(mapping) self.fvars = fvar

processor, the lock# signal generally does not lock the bus, but the lock cache, after all, the lock bus overhead is relatively large. The 8.1.4 section details the effect of the locking operation on the processor cache, and for the Intel486 and Pentium processors, always claim the lock# signal on the bus during lock operation. However, in P6 and the most recent processors, the lock# signal is not claimed

Thinking: matrix and transformation, and the application of matrix in DirectX and OpenGL 1. Matrix and linear transformation: one-to-one correspondence A matrix is a tool used to represent linear transformations. It corresponds to linear transformations one by one.Consider linear transformation:A11 * x1 + a12 * x2 +... + a1n * xn = x1'A21 * x1 + a22 * x2 +... + a2n * xn = x2'...Am1 * x1 + am2 * x2 +... + amn * xn = xm' Correspondingly, the matrix rep

the hardware based on the BIOS (basic input and output system) and enters the operating system to perform the function of supporting the system platform. Chip classification Intel:socket386, Socket486, Socket586, Socket686, Socket370 (810 motherboard, 815 motherboard), Socket478 (845 motherboard, 865 motherboard), LGA 775 (915 motherboard, 945 motherboard , 965 motherboard, G31 motherboard, P31 motherboard, G41 motherboard, P41 motherboard), LGA 1156 (H55 motherboard, H57 motherboard, P55 mot

Java uses the annotation processor to generate code-Part 2: annotation Processor This article is part 2 of my "using annotation processors to generate code for Java" series. In the first part (please read here), we will introduce Java annotations and several common methods. Now, in the second section, we will introduce annotation processors. This includes how to create annotation

Now when it comes to processors, the word "double core" should inevitably be talked about. Looking at the full street dual-core processor ad from Intel Corporation, no one would suspect that 2006 would be a dual-kernel processor. But from the various reports of the relevant dual-core processor, I find that many of the places are inaccurate and misleading to consumers. So I'm going to go through today's article to introduce you to the increasingly popu

address of the cache. If you're interested, all of these things can be checked, but I'm not going to talk about it here.Conformance Protocol (coherency protocols)As long as the system has only one CPU core at work, everything is fine. If there are multiple cores, each with its own cache, then we have a problem: what happens if the corresponding memory content in one CPU cache segment is secretly changed by another CPU?Well, the answer is simple: nothing will happen. It's bad. Because if a CPU c

1. Allocating a variable with heaps and stacks may produce unexpected results in subsequent executions, and the result is that the memory is illegally accessed, causing the contents of the memory to be modified. The two basic concepts for understanding this phenomenon are that the threads in a process share the heap, while threads in the process maintain their own stacks. If you declare a member variable, such as Char name[200], the address of name on the stack is freed as the code call ends. In

Http://mobile.pconline.com.cn/337/3379352.html"pconline " If you ask a friend to buy a desktop or laptop, many times that friend will be based on your use of the computer to make a performance division, such as "you just need to deal with some simple documents, the game is not high, choose Intel I3 's processor is enough. "While there is a suspicion of advertising for Intel, the effects of Intel's deep-rooted, I-series processors over the years are sh

// Configure //-------------------------------------------------------------------------------------------------//// Copyright? 2001, Intel Corporation. Other brands and names may be claimed as the property of others.////// CPU counting Utility// Date: 10/30/2001// Version 1.4//////// File name: cpucount. cpp//// Note: 1) logicalnum = number of logical processors per physical processor. If you want to count// The total number of logical

A 32-bit IA-32 processor supports locking atomic operations on locations in system memory. These operations are generally used for shared data structures (such as semaphores, segment descriptors, system segments, and page tables ). For these shared data structures, there may be two or more processors trying to modify their same domain at the same time (Translator's note: it is equivalent to a data member of the struct variable in C) or sign. The proce

instruction pointer is, this article may be difficult for you. You need to know what registers, commands, and caches are. If you don't understand what they are, you need to find out the information as soon as possible. Second, the working principle of CPU is a very huge and complex topic. This article is just a quick glance, it is difficult to use an articleArticleDetailed description. If you have any omissions, please let me know through comments. Third, I only focus on Intel

implemented, each processor by sniffing the data propagated on the bus to check whether the value of its cache is expired, when the processor found its own cache line corresponding memory address is modified, The cache line of the current processor is set to an invalid state, and when the processor modifies the data, it will re-read the data from the system memory into the processor cache.　　The two implementation principles of volatile:1) The lock prefix instruction causes the processor cache t

are all normal assembler statements, meaning the double-byte stack pointer register +0, where the key is the Add Front lock command, After a detailed analysis of the role of the lock command and why the lock command to ensure that the volatile keyword memory visibility.What did the lock command do?Previously said IA-32 architecture, about the CPU architecture of the problem we are interested to inquire about it, here to check the IA-32 manual about the lock instruction description, no IA-32 man

Even if you haven't compiled advanced applications for nanoelectronics, aerodynamic, Molecular static, cell lifecycle modeling, and so on, maybe the following 32 rules are as follows, it will help you port programs to a higher-level processor. Recently, it seems that everyone has been talking about 64-bit computing, such as amd athlon 64 processor laptops, Apple G5 using IBM PowerPC 970 chips, or whether the Intel itanium architecture will be canceled, in this regard, the IT industry and the pre

, W (x) 1 indicates that 1 is written to x, and R (y) 3 indicates that 3 is read from the variable y. for more operations (especially synchronization operations), we can define its mark when necessary. For simplicity, assume that all variables are initialized to 0. note that a statement (such as x = x + 1;) in advanced languages usually involves several memory operations. If the value is 0 before x, the statements in that advanced language will become (not considering other

The technology of supporting processors-the world of endless pursuit of speed (Open the Processor black box for programmers, and gain a deeper understanding of construction and rationale.) ） (US) The sea-Isaac Ando; Jian Li translation ISBN 978-7-121-18092-7 published October 2012 Price: 69.00 RMB Page 356 16 Open Editor's recommendation The earth is supported by processors that are several times more than

gaps, single-side 84-pin, double-side 168-pin, voltage 3.3 V, memory rectangular (obsolete ). 2. ddr1 (First Generation) one notch, single side 92 pins, double side 184 pins, voltage 2.5 V, memory particle rectangular operating frequency 266,333,400. 3. DDR2 (second generation) one notch, single side 120 pins, double side 240 pins, voltage 1.8 V, memory particle square operating frequency 533,667,800. 4. ddr3 (Third Generation) one notch, single side 120 pins, double side 240 pins, voltage 1.5