Those of you who have a solid experience on using FORTAN compilers for CFD computations under LINUX OS, I need your advice:

Which compiler is best, in terms of speed, using all the memory capacity, debugging, etc.? Some people still believe g77 could be sufficient enough even for large computations. I am not sure if g77 can use all the memory of the machine. LF95 seems the fastest one. But, anyhow, give me please your professional experience on this issue.

Thank you.

I would rank them (from my experience and my coworkers):

Portland Lahey Intel

Portland seems to be the most robust, followed by Lahey. Although I have had no problems with Intel, several of my coworkers have had some interesting "issues" that disappear when they use one of the other compilers.

Dan,

You may find the following helpful:

http://www.polyhedron.co.uk/complnx.html

http://www.nikhef.nl/~templon/fortran.html

It depends on your processor and OS.

For Intel process, Intel compiler should be the best choice; for AMD processor, PGI is suggested. in addition, PathScale is also a nice compiler for AMD64, but it does not support OpenMP etc. for its present version.

salut, je suis trés content de voir cette boite de dialogue, pour poser certaines question sur le fortran et sur linux,surtout que je les utilise beaucoup en météorologie. comment compiler fortran sous linux? comment avoir la bibliotheque PGPlOT ,qui permet de tracer des courbes... avec fortran.