4 ms·
Which are not free for the most part, right? As of 2019, the speed argument is mostly academic though. IMO. Few people do cosmo simulations on a daily basis to
by x3tm 8y ago
Which are not free for the most part, right?
As of 2019, the speed argument is mostly academic though. IMO. Few people do cosmo simulations on a daily basis to really care about this.
- tanderson92 8y agoYes but how many of the people who these slides were designed for are people doing cosmos simulations? That's the relevant quantity. It's especially funny because the author's area of research is in cosmos simulations. :-)
- mattkrause 8y agoA lot? I would guess the slides are meant for advanced undergrads or first year grad students in a physics program. ee how the math-y parts of the slides are pretty sophisticated (e.g., bessel functions) even though the programming part is pretty simple?
- tanderson92 8y agoOf course "a lot" is the answer. That is precisely my point: for the audience of these slides, speed does matter. :)
- mattkrause 8y agoMy bad--I parsed that as sarcasm!
- alexott 8y agoWhen I did this myself (around 20 years ago), computer time was expensive, and any speed up helped
- 4thaccount 8y agoYea, but people still do all kinds of other numerical work in Fortran like Power Systems and it is much easier to read than the new C++ replacements I've seen.
- creatornator 8y agoCheck out GFortran, it's 100% free as part of the GNU project. I believe the Intel Fortran compiler is also free (as in money, maybe not as in freedom). The speed argument does matter too--how many high frequency trading/fintech/big data/banking/engineering companies are built, at some point in the stack, on high-speed libraries written in Fortran? I don't know any numbers, but any company that uses numpy is transitively also using Fortran in their stack.
- dagw 8y agoI believe the Intel Fortran compiler is also free It's only free for students and educational uses. Not for any commercial or non-education research use.