GNU Fortran compiler (gfortran)

Documentation

 http://gcc.gnu.org/onlinedocs/
 http://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html
 http://www.cs.utah.edu/dept/old/texinfo/as/gprof.html

Compiler options

 To compile a project :
gfortran file1.f90 file2.f90
 To print all warnings :
gfortran -Wall -Wextra file1.f90 file2.f90
 To optimize speed :
gfortran -O3 -march=native file1.f90 file2.f90
 To optimize size (can sometimes optimize speed if program+data are a little bigger than the processor cache) :
gfortran -Os -march=native file1.f90 file2.f90
 To verify Fortran 2008 standard compliance (also f2003, f95, f90...) :
gfortran -std=f2008 -pedantic file1.f90 file2.f90
 To profile and optimize your code, use the -pg options and the gprof utility :

 To count the number of code lines in a project (using various languages) :
sloccount .

On a distant machine

 To login :
ssh -p 2222 login@server.fr
 To obtains infos on the CPU :
cat /proc/cpuinfo
 To launch and logout without stopping the process :

 To automatically send a e-mail with the results files. The e-mail subject (-s option) is your login and the host name. The two .dat files are attached (-a option). The body is taken from "message.txt" :
mutt -s $(whoami)"@"$(hostname) myname@myemail.fr -a results.dat results2.dat < message.txt