Vincent Neil

Author: Chief engineer of State Information Center Fine horse of peaceful family

Enter the 11th Five-Year Plan, the economical operation development speed of China is obviously promoted, all trades and professions have all changed rapidly. Meanwhile, various new situation, new problem emerge in an endless stream too.

The Central Party Committee put forward " Build a socialism with Chinese characteristics in the harmonious society and good and develop China's economy quickly " The requirement is an unprecedented great cause, it does not have at all forefathers' experience that can be drawn lessons from. Meanwhile, the goals of harmony, sustainable development, the coordinated development demanding to take in the course of development into account every aspect at the same time again.

On one hand, the new situations and new problems require that can make a response and make policy at fastest speed in the decision-making bodies of the government; On the other hand, the requirement decision process of harmonious development should be very prudent, consider economic benefits and social benefit, immediate interest and long-term interest synthetically.

This department to offering economical operation and developing the model proposes higher requirement: How could be under developing fast, becoming more complicated considering rapid great background that rises of variable quantity, offer the high-quality, efficient operation model for decision department to consult?

Do the decision support of the high-quality need of work of marcoeconomic regulation and control well

In marcoeconomic regulation and control works, economist and government official often rely on a large number of data, economic model and experience to analyse and judge, with the development of economics, already there are many kinds of the metrological model of economy, they can already play an increasingly important role in macroscopical decision.

So to a certain extent, China macroeconomic management and adjustment work get rid of, " make the head " by individual experience in the past progressively already To make the practice of the macroscopical policy. Need scientific methodology and data further now, each decision needs to do a plurality of schemes and models to calculate and support behind.

As the study on economical operation law is deepened more and more, understand people's far-reaching influence produced toward economic activity more and more too. Often a very small decision will produce a lot of not predictable results. In an era of economic integration of the whole world, " buterfly effect " Do not meet trouble halfway. The often huge change originated from a very small perturbation joining in the system.

People find the factor of a kind of influence and add from practice into Off-The-Shelf model, the systematic complexity is promoted by once greatly. Count like yuan that are looked on as the equation (unknown number) One piece of every increase, its assumed difficulty is promoted by once greatly, and the promotion of this kind of difficulty presents one kind and accelerates anabatic situation.

Policymakers and economists of today, hope to rely on more and more complicated, increasingly fast computer and SPSS, STAT, AERMOS, E-View (TSP) of operation speed further Wait for economic predictive parsing and econometric model software to set up economical operation and predict the analytic model, offer the basis of decision for the fact that science judges the economic tendency, developing state and how to adjust and control, realize rationally economy is also developed fast well.

This kind of decision, with economic high-speed development and globalizing the more urgent and increase of frequency count, just as " buterfly effect " The same, every economic question that we face (for example increase the products export of a certain type to increasing the foreign trade and foreign currency compensating function of revenue and expenditure of today, or because the price of the petroleum is promoted the degree of impact on macroeconomic speedup continuously, or a certain epidemic pig what kind economic cost epidemic disease pay) ,Will all influence this tendency of macroscopical economic law development, all hope that can offer the answer represented with digital form through econometric model and supercomputing.

The model analysis of economical operation predicts that demonstrates the trends of accuracy and refinement itself, the national development and reform committee has already proposed aiming at specially bringing about an advance in macroeconomic forecasting too " The great project of gold " (macroscopical economic management information system) . This is all because economic model analysis predict it is more complicated, propose the product of the higher requirement to the hardware.

The past analyst mainly gathers the analysis to software and economic model, technological details which pay close attention to the fact the hardware are not many, but with the promoting fast of complexity, also begin to pay close attention to the characteristic of CPU. Especially because calculation sum is strengthened, there are more iteration algorithms, propose the great requirement to CPU floating point and integral point characteristic.

Such work make these calculation on graphical workstation and large comuter mainly in the past. Now, because assumed number of times and calculation sum are all fast to increase and the use of PC is convenient, increasingly many expert and government's Civil Servant have already mainly relied on top-grade PC and notebook computer to carry on general calculating at present, and finish the complicated calculation task for the server.

Stand up synthetically and look, the model calculation of prediction related to socio-economic development, has proposed the requirement of several respects to the computer hardware which bore the weight of it, namely: First of all, it should possess high performance, characteristic intensive in computer, with great throughput. Such computer hardware could be matched with increasingly fast-developing economic situation. Secondly, the hardware framework of the computer should possess the certain one prospectively, it is " sustainable development " ,not only it can respond to the request that the model run at present,can should last modified getting more complicated economic model about future. Third, it should be energy-concerving and environment-protective.

As the planning department of sustainable development, energy-conserving environmental protection should start from every computer. Through integral investigation and measurement, a series of high-performance processor from AMD Company, especially coaxiality that introduce soon four kernel processors of " the those Luo, match of Palestinian, ", calculate the representative products of the field as being common, relatively accord with the demands for modeling conjunction of economic development.

Macroeconomic modeling of helping hand of Barcelona

From the viewpoint of high performance calculation, the framework that AMD processor adopts is undoubtedly more advanced, it has not only keep compatibility with the first several generations of processors but also realized the revolutionary change, it is the future more high-performance calculation offered the platform of the broad development space.

In the AMD series processor, have adopted the directly connect improved to build up in unison, compared with traditional Head Bus - framework of the north bridge, the memory bandwidth is the tradition " The Head Bus + north bridge framework " Twice more than,only half of framework as being traditional when lasting time delay memory. Meanwhile, the integrated memory control device in the processor of AMD, every CPU has exclusive memory bandwidth, I/O data use the single bus line to reduce the memory to delay, at the same time, as a elastic framework, the memory bandwidth will increase with increase of CPU.

In the most authoritative high performance calculation TOP500 in the world that was just released in June ranks, the systematic quantity based on AMD white dragon's processor has exceeded any other 64 solutions of x86.

In the AMD series processor, exceed and transmit the bus line it for realizing the large data bulk is handled up of great importancely, these are a new kind of point-to-point high-speed communication, it has offered the wider passway for the fact that the mass data ran side by side to pass in and out CPU, this calculates to many variables of the economical operation model it is very important. The greater the problem to be solved is, it is the more complicated, the greater advantage what the directly connect is built up is.

Meanwhile, all right seamlesses of AMD series processor are from binuclear processor staging of the Off-The-Shelf mainstream to four kernels, did not increase the calorific power at the same time, reduced and had cost overallly. By the look of really techincal characteristics of the white dragon's processor of four kernels, AMD has adopted enhanced Power NOW! , technology such as CoolCore and double dynamic power management, at two-way platform, on the basis of really four the intersection of kernel and white the intersection of server and compared with the server system based on other processors system of dragon, high-performance saves 41% of the electric cost the most.

In four kernel processors of Barcelona, AMD has taken the lead in realizing the collaborative work of four kernel processors, but not capsulate four CPU cores together briefly. Such coordinated operating mode needs more delicate design, but realized better characteristic to user. Meanwhile, still in the intersection of inside design and wide the intersection of floating point and accelerator that Luo, match of Palestine, the intersection of memory and optimization technique and balanced the intersection of intelligence and the intersection of person who buffer and technology AMD. Have improved the characteristic effectively in various degree. Deducing important meaning to complicated economic model of promotion of the characteristic, can catch the transient opportunity in the aid decision making department.

Meanwhile, in these four kernel processors, AMD also joined several brand-new technology, only in power consumption control, adopt the key technology of independent trends that each kernel uses the independent frequency, promote AMD CoolCore technology that the transistor-resistor logic controls within CPU, and multiple technology such as double dynamic power management, can save a large amount of electric energy in the environment needing deducing repeatedly for a long time.

In " the big society, the small government " Structure in,government main function lie in last directions of economic development social, centre on the links that is the economic community service firmly. Should realize that manage from extensive type to adjust and control accurately, overall arrangement, moving forward wholly, equilibrate and develop, there are a whole set of scientific, elastic, expanded economic development models constantly soon, it is the important basis of leading decision, and the strong computing platform realizes the solid foundation that this complicated model day by day runs well.

In this field, need to make a large amount of careful research, analysis, relatively work. Four high-performance kernel processors are a representative product in this respect, it contributes to our data analysis, modeling and large data bulk operation job very much.