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is fortran still used

is fortran still used

http://benchmarksgame.alioth.debian.org/u64q/fortran.html. On all the High Performance Computing platforms that I’ve used (except for one), there was a very good Fortran compiler available (although I should admit that there was always a C-compiler as well, even on that Fortran-less exception). C was designed to be flexible. And the key is not in the language features that are present, but in those that (usually) absent. FORTRAN was often programed with punch cards, as is not-so-fondly recalled by Prof. Miriam Forman here at Stony Brook. Alongside several scientific software systems have been coded neatly with Fortran. Finally, array B is copied into array C, starting at element 10. In the base implementation of C++, merely copying an array requires cycling through all the elements with for loops or a call to a library function. Their first reaction is usually to think they can mimic it in other languages, but they can not. This saves their students time, and also takes uncertainty out of the debugging process. But so are many modern languages like Matlab, Python and R. If you’ve never programmed before in your life, you will not find Fortran90 (for example) so easy to learn. Under the hood the Fortran compiler automatically optimizes the passing so as to be most efficient. syntax involved, and as such syntax can't be easily reduced So I wouldn't be too surprised by the claim. In fact, the only two languages that are currently in use for large scale numerical simulation are — C++ and Fortran. But there is a problem with the logic in this statement. Coarrays started as an extension of Fortran 95 and were incorporated into Fortran 2008 standard. ROOT is still meh in so many ways. Fortran 90 and C are very similar, but Fortran is easier to code in for reasons I will discuss. There is nothing about the languages Fortran and C which makes one faster than the other for specific purposes. Even pointers in Fortran arent as flexible as C because of this simple reason. Due again to its number-crunching niche, the customers of Fortran compilers tend to care more about optimization than the customers of C compilers. The answer to this would in fact be Fortran. The language was formerly known as FORTRAN (and older variants of it still are). For instance, to allocate a 2D array: To deallocate an array in Fortran, we use. As you'd expect, this considerably restricts the kind of optimizations that can be performed. Fortran had to compete with Assembly back in the day when some vowed never to use compilers, so it was designed for speed. (i'm seriously amazed by how advanced Fortran compilers are but so are C compilers). Now we may want to analyze the motion of a single molecule. Interestingly, C++ beats Fortran on all but two of the benchmarks, although they are fairly close on most. Can we harness a plant's ability to synthesize medicinal compounds? This page was last changed on 3 July 2020, at 07:36. (A shortened version of this answer would have been a comment in the excellent thread started by Nils but I don't have the karma to do that. SIESTA), large scale climate models, etc. In fact, the larger sales generated by C compilers makes this scenario quite feasible. This is what I learned in a Fortran workshop at high performance computing center Stuttgard, Germany in 2015. To some extent Fortran has been designed keeping compiler optimization in mind. This is in contrast to mathematicians, who prefer to think in terms of abstract functions and logic. For a while, some IT head hunting outfits were offering premium salaries for anyone with COBOL coding experience on their resumes, to fill in the shortfall between low demand and an even lower supply of available talent. Fortran has better I/O routines, e.g. For modern implementations C general outperforms FORTRAN (although it is very fast too). Here is a 2nd answer for those willing to downvote me because they don't like the 1st answer : Both language have the features required to write high-performance code. The survey also showed that a large number of people were using mixed code with C overwhelmingly the second language (90%). The website http://benchmarksgame.alioth.debian.org allows for a comparison of several benchmarks between C and Fortran. There is nothing intrinsic to Fortran that would make it faster than C. Anyway, a good programmer can write Fortran in any language. Yes people/company still use em. Now of course, for parallel math intensive code you probably want to use your GPU.

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