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Doctor Fortran Gets Explicit - Again!
Опубликовано Steve Lionel (Intel) Размещено 05.01.2012 11
Nearly 11 years ago (!) I wrote an item for the Visual Fortran Newsletter on explicit interfaces in Fortran. In recent weeks, I have had to refer quite a few customers to this article, suggesting that many Fortran programmers don't understand the role and rules of explicit interfaces. However, wh...
Doctor Fortran in "Lest Old Acquaintance Be Forgot"
Опубликовано Steve Lionel (Intel) Размещено 23.12.2011 3
In some of my earlier posts I've discussed new features in the Fortran language that might be unfamiliar to some.  But this time I'm going to go the other way and describe some really old language features - so old that many newer Fortran programmers are mystified when they see them - but these f...
The Real Doctors of Fortran
Опубликовано Steve Lionel (Intel) Размещено 22.09.2011 7
In this blog, I refer to myself as "Doctor Fortran".  It's a joke that started more than ten years ago when I decided to write an "advice column" for what was then the Digital Visual Fortran Newsletter.  Everyone liked it so much I stuck with it, but I've always been aware of the people who deser...
Introducing Intel® Fortran Studio XE 2011
Опубликовано Steve Lionel (Intel) Размещено 06.09.2011 5
Let us return to those thrilling days of yesteryear. Yes, I mean November 2010 when Intel® Parallel Studio XE was first released. This suite of high-performance computing development tools included new versions of the Intel C++ and Fortran compiler products, (now renamed "Composer XE"), and two n...
Thirty Years of Zonker Kookies
Опубликовано Steve Lionel (Intel) Размещено 20.10.2010 8
It is a beautiful autumn day here in Southern New Hampshire. The air is clear and crisp, the sun is bright and the trees have (finally!) brought out some color, which I can see looking out the window near my cube.  But soon, I will pack up the rest of my things and leave that view, and the cube, ...
Doctor Fortran in "Think, Thank, Thunk"
Опубликовано Steve Lionel (Intel) Размещено 02.09.2009 2
One of the various responsibilities I have is for the compiler samples (both Fortran and C++).  For Intel Visual Fortran, we have a lot of samples - for the other compilers, fewer.  The Windows Fortran samples are a mixed lot; some came to us from Microsoft Fortran Powerstation (with or without e...
Doctor Fortran in "I've Come Here For An Argument, Side 2"
Опубликовано Steve Lionel (Intel) Размещено 10.07.2009 11
My earlier post, "I've Come Here For An Argument", was very popular with my fellow support engineers, as it provided a convenient answer to questions they frequently receive.  (For me too, which in part is why I wrote it!) But some people (cough, Ron, cough) are never satisfied, and I've been ask...
Doctor Fortran in "Revert! Revert! The End (of the format) is Nigh!"
Опубликовано Steve Lionel (Intel) Размещено 01.07.2009 4
Recently, a customer wrote in our User Forums that he wanted to write out the values of an array, all in one line, where the number of elements was not known at compile time.  His first attempt at this was:write (30,'(2x,f8.2)') array and he was dismayed to find each element written on a new line...
Doctor Fortran in "I've Come Here For An Argument"
Опубликовано Steve Lionel (Intel) Размещено 31.03.2009 16
One of the most fundamental aspects of Fortran programming is passing arguments to procedures.  It is also one of the most misunderstood aspects.  In this space today I'll try to make things clearer. First, some terminology.  In Fortran, there are "actual arguments" and "dummy arguments".  An ac...
Doctor Fortran in "Too Much of a Good Thing?"
Опубликовано Steve Lionel (Intel) Размещено 23.01.2009 13
A lot of Fortran programmers take the "belt and suspenders" approach to coding, with explicit declarations of every attribute they want for a symbol.  In general, this is good practice, especially when combined with IMPLICIT NONE to force you to say what you mean.  But some programmers take this ...