Arithmetic and power
Publish: 2021-04-03 06:52:52
1. The computing power of CPU is related to the number of CPU cores, the frequency of core and the ability of single clock cycle of core
the ability of double precision floating-point computing is commonly used to measure the scientific computing ability of CPU, that is, the ability to process 64 bit floating-point data
the processor supporting avx2 can perform 16 floating-point operations in one core and one clock cycle, Also known as 16flops
CPU power = number of cores x frequency of cores x 16flops
processors supporting avx512 can perform 32 floating-point operations in one core and one clock cycle, also known as 32flops
CPU power = number of cores x frequency of cores x 32flops
the ability of double precision floating-point computing is commonly used to measure the scientific computing ability of CPU, that is, the ability to process 64 bit floating-point data
the processor supporting avx2 can perform 16 floating-point operations in one core and one clock cycle, Also known as 16flops
CPU power = number of cores x frequency of cores x 16flops
processors supporting avx512 can perform 32 floating-point operations in one core and one clock cycle, also known as 32flops
CPU power = number of cores x frequency of cores x 32flops
2. There must be such a subject as black hole simulation. I heard a report in 2009, that's what I did. I have other classmates doing it. Except for the celestial bodies; High energy physics. My friends are doing or have done scientific research requiring large-scale calculation, including: behavior of biological macromolecules, gene sequence analysis, gene expression pattern analysis, energy bands of various catalysts, finance, liquid properties, superconctors and other materials, geological activities, meteorology... Er... Such a list of discoveries should give me a scientific calculation that doesn't require a lot of computing power. I feel that many teachers are very greedy. The more computing resources, the better
hope to adopt
hope to adopt
3. Qianzhong Morning Post: have a of Qianzhong Morning Post
meet your reading at the same time
also add color to your life
take your family and friends with you
come to Anshun cultural center cinema!
meet your reading at the same time
also add color to your life
take your family and friends with you
come to Anshun cultural center cinema!
4. With the development and integration of artificial intelligence, big data and computing power, the three have been organically integrated into an intelligent whole. Its connotation and denotation tend to be diversified, and the applications in various subdivision fields are also rich and superimposed. You have me and I have you. The difference and boundary between artificial intelligence, big data and computing power are more and more blurred
at this stage, the application of artificial intelligence and big data has penetrated into various fields such as instry, agriculture, medicine, national defense, economy, ecation and so on, and the commercial and social value generated is almost unlimited. With the development of artificial intelligence and Internet of things, cloud computing is no longer limited to storage and computing, and has become an important driving force for the development and transformation of various instries. You can learn more about AI, big data and computing power on the 10th power computing power platform.
at this stage, the application of artificial intelligence and big data has penetrated into various fields such as instry, agriculture, medicine, national defense, economy, ecation and so on, and the commercial and social value generated is almost unlimited. With the development of artificial intelligence and Internet of things, cloud computing is no longer limited to storage and computing, and has become an important driving force for the development and transformation of various instries. You can learn more about AI, big data and computing power on the 10th power computing power platform.
5. 1、 Basic training
from the psychological characteristics of different ages of primary school students, the basic requirements of oral arithmetic are different. Low and middle grade students mainly add one or two digits. It is better for senior students to take the one digit by two digit mental arithmetic as the basic training. The specific requirement of oral arithmetic is to multiply the number of one digit and the number of ten digits of two digits, and then add the proct of multiplying the number of one digit and the number of one digit of two digits to the three digits, and quickly say the result. In primary school, this training is a sublimation training of abstract thinking of numbers. It is very beneficial to promote the development of thinking and intelligence. This exercise can be arranged in two periods. One is to read in the morning, the other is to arrange a group at the end of homework. Each group is divided as follows: one digit is optional, corresponding to the number of one digit or ten digit in two digits. There are 18 questions in each group. Let the students write the formula first, then write the number directly after several times of oral calculation. In this way, after a period of time (generally 2-3 months), the speed and accuracy of oral calculation will be greatly improved< Second, the main form of the number of senior primary school students has changed from integer to score. In the operation of numbers, the addition of different denominators is the most time-consuming and error prone place for students, and it is also the key and difficult point of teaching and learning. How to overcome this key and difficult point? It is proved that it is correct to put the oral calculation of fraction operation on the addition of fractions with different denominators. Through analysis and inction, there are only three cases of different denominator addition (subtraction) method, and each case has its oral arithmetic law. As long as students master it, the problem will be solved.
from the psychological characteristics of different ages of primary school students, the basic requirements of oral arithmetic are different. Low and middle grade students mainly add one or two digits. It is better for senior students to take the one digit by two digit mental arithmetic as the basic training. The specific requirement of oral arithmetic is to multiply the number of one digit and the number of ten digits of two digits, and then add the proct of multiplying the number of one digit and the number of one digit of two digits to the three digits, and quickly say the result. In primary school, this training is a sublimation training of abstract thinking of numbers. It is very beneficial to promote the development of thinking and intelligence. This exercise can be arranged in two periods. One is to read in the morning, the other is to arrange a group at the end of homework. Each group is divided as follows: one digit is optional, corresponding to the number of one digit or ten digit in two digits. There are 18 questions in each group. Let the students write the formula first, then write the number directly after several times of oral calculation. In this way, after a period of time (generally 2-3 months), the speed and accuracy of oral calculation will be greatly improved< Second, the main form of the number of senior primary school students has changed from integer to score. In the operation of numbers, the addition of different denominators is the most time-consuming and error prone place for students, and it is also the key and difficult point of teaching and learning. How to overcome this key and difficult point? It is proved that it is correct to put the oral calculation of fraction operation on the addition of fractions with different denominators. Through analysis and inction, there are only three cases of different denominator addition (subtraction) method, and each case has its oral arithmetic law. As long as students master it, the problem will be solved.
6. Born a little agile! Upgrade yourself and add a little sensitivity! It's growing a little bit! Level 62! Counting the growth of itself, there will be 62 points of agility! Because when I was born, I was only a little agile! 4 attribute points are only available from level 2! Then you need to add 1 min from 2J to 62j! Get rid of 1J! It's 61j min! Then you added 61 points of sensitivity yourself! 61 min and 62 min! It's 123 points of agility! The answer is that when you get to 62j, you can add by 3 Ling and 1 min! Agile should have 123 points of agility!
7. Can I have a question
8. Generally speaking, calculation is the operation of numbers, so the computing power depends more on the sense of numbers and carefulness. Operation ability includes calculation and the solution of algebraic equation function, which is particularly important for the requirement of logic level and the control of overall situation. People with strong computing ability have very few computing problems, otherwise it is not
9. Strengthen the training of mental arithmetic and lay a solid foundation
mental arithmetic is the basis of all calculations. Only when the basic mental arithmetic reaches a very proficient level can children have a good calculation level and form a good calculation ability. Parents can insist that their children do mental arithmetic every day. The content of mental arithmetic can include the mental arithmetic problems in this book and the basic mental arithmetic contents learned in the past. Let the children practice repeatedly in order to achieve proficiency
participate in the derivation of rules and formulas to truly clarify the calculation
primary school mathematics calculation is based on the corresponding concepts, rules, properties, formulas and other basic knowledge, especially the concept, which is the form of thinking. Only when the concept is clear and understood thoroughly, can we make correct judgment and logical reasoning. The calculation rule is the programming and regularization of the calculation method. The understanding of the rule is the premise of the formation of the calculation skills. Helping students firmly grasp and flexibly use these knowledge is the premise of improving the calculation ability
memorize common data to improve calculation speed
some common operations are often encountered in real life. Some of these operations have no specific rules of oral arithmetic and must be solved by strengthening memory training. The main contents are:
1. Special data whose sum and proct are hundreds and thousands
the number of squares and cubes within 2 and 10< br />3、1 π— nine π
4. The common interaction of fractions, decimals and percentages
5. The calculation characteristics of "0" and "1"
Fourth, cultivate good calculation habits
1. Cultivate the habit of serious examination. When examining a question, we should do the following: one look (see clearly the numbers and symbols in the question), two strokes (mark which step to calculate first and which step to calculate later on the question), three thoughts (when to use oral arithmetic, when to use written arithmetic, whether to use simple arithmetic or not), four calculations (calculate carefully with pen)
2. Cultivate the habit of serious calculation. When training students to calculate, they should be patient, not impatient, think seriously, and be cautious even when doing simple calculation problems. The calculation should be written neatly and the format should be standard. Even on the draft paper, the calculation should be written clearly to facilitate inspection
3. Cultivate the habit of skillful estimation. The first is to estimate the range of the number before the system calculation; The second is to estimate after system calculation, which can judge whether the number is correct and reasonable
4. Cultivate the habit of timely inspection. When calculating, check your problem-solving process at any time, develop the calculation habit of "one step, one turn back", and do one step, one turn back check when calculating. Check whether the numbers and symbols are copied correctly, and whether the number is accurate. When checking, be patient and careful, check one by one, and overcome the carelessness.
mental arithmetic is the basis of all calculations. Only when the basic mental arithmetic reaches a very proficient level can children have a good calculation level and form a good calculation ability. Parents can insist that their children do mental arithmetic every day. The content of mental arithmetic can include the mental arithmetic problems in this book and the basic mental arithmetic contents learned in the past. Let the children practice repeatedly in order to achieve proficiency
participate in the derivation of rules and formulas to truly clarify the calculation
primary school mathematics calculation is based on the corresponding concepts, rules, properties, formulas and other basic knowledge, especially the concept, which is the form of thinking. Only when the concept is clear and understood thoroughly, can we make correct judgment and logical reasoning. The calculation rule is the programming and regularization of the calculation method. The understanding of the rule is the premise of the formation of the calculation skills. Helping students firmly grasp and flexibly use these knowledge is the premise of improving the calculation ability
memorize common data to improve calculation speed
some common operations are often encountered in real life. Some of these operations have no specific rules of oral arithmetic and must be solved by strengthening memory training. The main contents are:
1. Special data whose sum and proct are hundreds and thousands
the number of squares and cubes within 2 and 10< br />3、1 π— nine π
4. The common interaction of fractions, decimals and percentages
5. The calculation characteristics of "0" and "1"
Fourth, cultivate good calculation habits
1. Cultivate the habit of serious examination. When examining a question, we should do the following: one look (see clearly the numbers and symbols in the question), two strokes (mark which step to calculate first and which step to calculate later on the question), three thoughts (when to use oral arithmetic, when to use written arithmetic, whether to use simple arithmetic or not), four calculations (calculate carefully with pen)
2. Cultivate the habit of serious calculation. When training students to calculate, they should be patient, not impatient, think seriously, and be cautious even when doing simple calculation problems. The calculation should be written neatly and the format should be standard. Even on the draft paper, the calculation should be written clearly to facilitate inspection
3. Cultivate the habit of skillful estimation. The first is to estimate the range of the number before the system calculation; The second is to estimate after system calculation, which can judge whether the number is correct and reasonable
4. Cultivate the habit of timely inspection. When calculating, check your problem-solving process at any time, develop the calculation habit of "one step, one turn back", and do one step, one turn back check when calculating. Check whether the numbers and symbols are copied correctly, and whether the number is accurate. When checking, be patient and careful, check one by one, and overcome the carelessness.
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