You can always start writing a C++ wrapper class around existing and running FORTRAN code, to utilize it in new projects. Three years ago, I finally gave it up and switched to C++. I spend days debugging code, since prototyping does not exist and subroutine calling sequence did not match after some changes.
Compaq fortran compiler code#
I wrote all my code for heavy number crunching for my PhD these in FORTRAN 77 using PVM for massive parallelization. I would gladly program in C/C++ if I could prove to my advisor that I can get a faster executable by doing so.įortran is still in use, but only because lots of people believe, it is cheaper (time wise) to fix existing code than make a paradigm shift. In the case of numerical problems, Fortran seems the best. PS: I am not really a Fortran fan, I am fan of using the best language to solve a given problem. Oh, and yes, it is very nice to borrow some APL features :-) Moreover Fortran 95 has lots of constructs that give hints to the compiler on possible optimization: the array sintax (so the compiler knows that order doesn't matter), the intent of paramters (in, out, inout), pure functions (functions with no side effects), allocatable arrays (that guaratee no aliasing) are some exemples. This allows better compiler optimizations that result in faster executable. The reason for this is usually due to the control over aliasing that Fortran has. When one says that Fortran is faster than C/C++ one means that if you have two versions of the same program, one written in Fortran and the other in C/C++ then the fastest executable will be likely the compiled Fortran version. Maybe that is why Digital Equipment Corp (formerly #2 in computers) no longer exists. The reason we do not all use FORTRAN today is that unlike the old days, most computing is not floating point number crunching. This compiler had many man-years of optimization put into it and was difficult to match in performance. FORTRAN (stands for Formula TRANslation) is the best tool for the job.Īlso, the Compaq compiler is likely to descend from the old VAX/VMS FORTRAN compiler. If you were a scientist, why would you bother with this noise. The only way to fix some of this stuff is to add explicit type casting in strategic parts of the expression. When converting numerical calculation programs from BASIC or FORTRAN to C/C++, I frequently get bitten by automatic promotion of types in expressions and precision being lopping off in the process. And it has advantages for numerical calculation. I also have 5 years of FORTRAN experience (distant past).
Compaq fortran compiler license#
AĬommercial Use license and media kit is available for US$399 -Īttractive multiple-license pricing is also available.įor more information, please visit the Compaq Fortran web site. Under a Technology Enthusiast license for non-commerical use.
Compaq fortran compiler download#
Supports most of the popular language extensions available on otherĬompaq platforms (OpenMP and HPF features are not currentlyĪccompanying the compiler and optimized run-time libraries is Ladebug,Ī robust and easy to use debugger that will simplify the debugging ofĪlso provided is the Compaq Extended Math Library (CXML), a library ofĬompaq Fortran for Linux Alpha Systems is available as a free download The Alpha processor's leadership performance. Highly optimized Alpha code generation technology to take advantage of Traditional Fortran 77 programs will be able to take advantage of the Fortran programs using the latest features as well as Click below for more details from Compaq.Ĭompaq Fortran for Linux Alpha systems is a full-language Fortran 95 The compiler is the same as the one that is used on Stevel wrote to us with the news that Compaq has announced Version 1.0 of Compaq Fortran for LinuxĪlpha systems.
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