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What is the difference between coarse-grained and fine-grained?
I have searched these terms on Google, but I couldn't find what they mean.
Stephen KennedyCoarse-grained modeling, coarse-grained models, aim at simulating the behaviour of complex systems using their coarse-grained (simplified) representation. Coarse-grained models are widely used for molecular modeling of biomolecules at various granularity levels. A wide range of coarse-grained models have been proposed.
10 Answers
Star wars battlefront 2 first person mod. From Wikipedia (granularity):
Granularity is the extent to which a system is broken down into small parts, either the system itself or its description or observation. It is the extent to which a larger entity is subdivided. For example, a yard broken into inches has finer granularity than a yard broken into feet.
Coarse-grained systems consist of fewer, larger components than fine-grained systems; a coarse-grained description of a system regards large subcomponents while a fine-grained description regards smaller components of which the larger ones are composed.
Michael PetrottaMichael PetrottaIn simple terms
- Coarse-grained - larger components than fine-grained, large subcomponents. Simply wraps one or more fine-grained services together into a more coarse-grained operation.
- Fine-grained - smaller components of which the larger ones are composed, lowerlevel service
It is better to have more coarse-grained service operations, which are composed by fine-grained operations
TechieTechieCoarse-grained: A few ojects hold a lot of related data that's why services have broader scope in functionality. Example: A single 'Account' object holds the customer name, address, account balance, opening date, last change date, etc. Thus: Increased design complexity, smaller number of cells to various operations
Fine-grained: More objects each holding less data that's why services have more narrow scope in functionality. Example: An Account object holds balance, a Customer object holds name and address, a AccountOpenings object holds opening date, etc. Thus: Decreased design complexity , higher number of cells to various service operations.These are relationships defined between these objects.
One more way to understand would be to think in terms of communication between processes and threads. Processes communicate with the help of coarse grained communication mechanisms like sockets, signal handlers, shared memory, semaphores and files. Threads, on the other hand, have access to shared memory space that belongs to a process, which allows them to apply finer grain communication mechanisms.
Source: Java concurrency in practice
AjayIn the context of services:
By definition a coarse-grained service operation has broader scope than a fine-grained service, although the terms are relative. The former typically requires increased design complexity but can reduce the number of calls required to complete a task.
A fine grained service interface is about the same like chatty interface.
user3285954user3285954In term of dataset like a text file ,Coarse-grained meaning we can transform the whole dataset but not an individual element on the dataset While fine-grained means we can transform individual element on the dataset.
Coarse-grained granularity does not always mean bigger components, if you go by literally meaning of the word coarse, it means harsh, or not appropriate. e.g. In software projects management, if you breakdown a small system into few components, which are equal in size, but varies in complexities and features, this could lead to a coarse-grained granularity. In reverse, for a fine-grained breakdown, you would divide the components based on their cohesiveness of the functionalities each component is providing.
coarse grained and fine grained. Both of these modes define how the cores are sharedbetween multiple Spark tasks. As the name suggests, fine-grained mode isresponsible for sharing the cores at a more granular level. Fine-grained mode has been deprecated by Spark and will soon be removed.
Pinaki MukherjeePinaki MukherjeeCoarse-grained and Fine-grained both think about optimizing a number of servicess. But the difference is in the level. I like to explain with an example, you will understand easily.
Fine-grained: For example, I have 100 services like findbyId, findbyCategry, findbyName... so on. Instead of that many services why we can not provide find(id, category, name..so on). So this way we can reduce the services. This is just an example, but the goal is how to optimize the number of services.
Coarse-grained: For example, I have 100 clients, each client have their own set of 100 services. So I have to provide 100*100 total services. It is very much difficult. Instead of that what I do is, I identify all common services which apply to most of the clients as one service set and remaining separately. For example in 100 services 50 services are common. So I have to manage 100*50 + 50 only.
SunSunCorse-grained services provides broader functionalities as compared to fine-grained service. Depending on the business domain, a single service can be created to serve a single business unit or specialised multiple fine-grained services can be created if subunits are largely independent of each other. Coarse grained service may get more difficult may be less adaptable to change due to its size while fine-grained service may introduce additional complexity of managing multiple services.
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The words 'coarse' and 'course' are homophones: They sound alike but have different meanings. Originally, 'coarse' and 'course' were the same word, but in the 18th century, the differences in spelling and meaning emerged, and the words have long since gone their separate ways, explains Bryan Garner in 'Garner's Modern American Usage.'
How to Use 'Coarse'
The adjective 'coarse' means rough, common, inferior, crude, or vulgar. It can also refer to something that is composed of large parts or particles. Synonyms for 'coarse'would be harsh, raucous, or rough in tone.
When it means vulgar, 'coarse' can refer to a film that is lowbrow. Sandpaper is often described as 'coarse' when it has a high degree of grit, as opposed to fine sandpaper, which does not.
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How to Use 'Course'
As a noun, 'course'can mean several things, including path, playing field, mode of behavior, unit of study, and onward movement. When used as such, 'course'can refer to a route, duration, academic class, golf playing field, or parts of a meal. For example, a busy student might be taking many 'courses,' or hungry diners might go through several 'courses' during the 'course' of the meal.
As a verb, 'course' means to move swiftly. You might say that blood 'courses'through your veins, for instance. The word also has several idiomatic uses, often meaning obviously, as in 'of course.'
Examples
'Coarse' is largely used in a couple of ways: to describe the texture of something or to describe something as vulgar. For example, 'My sister dislikes the 'coarse' language used by many of today's comedians,' means that my sister dislikes vulgar or crude language, or profanity, used by many current comedians.
When referring to texture, 'coarse'doesn't only refer to the roughness of sandpaper. For example, you might say:
- The fabric had a very 'coarse' texture.
In this use, 'coarse'describes the texture of the fabric, which was likely made of slubbed or rough material. The word can also describe materials as being rough-hewn, as in:
- The builder decided to use broken stones and other 'coarse' materials for the foundation of the house.
'Course,' by contrast, often refers to the links of a golf course. You might say that professional golfer Tiger Woods has played on many golf 'courses'throughout the world in the 'course'of his career. You would thus be saying the Woods has played on many links during the years of his career.
Or you could comment that a certain professor has taught many 'courses'—or classes—over the 'course' of his career. In addition to meaning a road or way, 'course'can mean a path, as in, 'The navigator of the ship set a direct 'course' for home.' The word can also have a more esoteric meaning, describing a person's path in his life or even his academic career, as in, 'After failing the entrance exam, Bob had to come up with a new 'course' of action.'
When describing the different parts of a meal, you could say, 'The diners enjoyed the main 'course' but not the other eight 'courses,' including dessert.' This means the diners liked the main dish, perhaps a burger or steak, but did not enjoy the other parts of the meal.
How to Remember the Difference
It can be a challenge to remember the difference between 'coarse' vs. 'course,' but EnhanceMyWriting.com offers a couple of tips: The word 'course' contains the smaller word 'our.' Many of the meanings of 'course,' such as an academic class, a golf playing field, or parts of a meal, are things we do together. The word 'our'—contained in the word 'course'—implies something we do, celebrate, or hold together.
To remember when to use 'coarse,' use a British term: 'Coarse' contains the word 'arse,' meaning buttocks, which in some circles is impolite to mention. 'In other words, to talk about an arse is coarse,' says EnhanceMyWriting.com.
Additionally, 'course' is always a noun or verb, while 'coarse' is always an adjective. The words 'coarse' and 'adjective' both contain an 'a.' So if you have a flair for grammar, this might be a good way to remember how to use 'coarse' (an adjective) instead of 'course' (a noun or verb).
Idiom Alerts
The word 'course' has a number of idiomatic uses in English. It's helpful for an English-language student to learn them.
On course: The expression 'oncourse' means going in the right direction, moving forward as expected, or following a plan correctly:
- If the student keeps going as she has been, she is 'on course' to graduate two years early.
Take (or run) its course: The expression 'take (or run) its course' means to let something progress or continue without interference:
- Rather than try to break up the couple, the mother decided just to let the relationship 'run its course.'
Of course: Probably the most widely used idiomatic expression using the term, 'of course' means naturally, for sure, or without a doubt. The expression often conveys a bit of an attitude on the part of the speaker, as in:
- 'Of course'I'm going on vacation with my family. Did you think I would stay home alone?
A matter of course: This expression, which is so familiar that Merriam-Webster's dictionary punctuates it as a 'matter-of-course,' means something that is expected or occurring or proceeding in a logical or natural manner. Using this idiom, you could say:
- She accepted his advances as a 'matter-of-course.'
- His 'matter-of-course' manner caused her anger to flare.
'Course' as a Compound Word
There are instances when 'course' is combined with another term to form a compound word. Two of the most common are 'racecourse' and 'watercourse.' These terms are similar to 'golf course,' but unlike the term describing the tract of land for playing golf, these two terms incorporate 'course' to form new words.
'Racecourse' is a synonym for racetrack, a facility used for the racing of vehicles, athletes, or animals, as in:
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- Although the 'racecourse' was muddy after the rain the previous night, the horses negotiated it with ease.
'Watercourse' refers to a brook, stream, or artificially constructed water channel, as in:
- The banks of the 'watercourse' were steep and treacherous, but the seasoned explorers managed to pass over them with little difficulty.
Sources
- “Coarse vs. Course.” Grammarist.
- “Course vs. Coarse – How to Use Each Correctly.” EnhanceMyWriting.com, 26 July 2017.
- “Coarse or Course? Oxford Dictionaries.” Oxford Dictionaries English, Oxford Dictionaries.
- “Course vs. Coarse: What's the Difference?” Writing Explained, 10 Apr. 2017.
- Garner, Bryan A. 'Garner's Modern American Usage.' Oxford University Press, 2009.
- “Watercourse.” Dictionary.com, Dictionary.com.