https://github.com/beliavsky/fortran-calling-c-for-io

speed comparison of Fortran internal read with Fortran calling C atoi() function
https://github.com/beliavsky/fortran-calling-c-for-io

atoi c fortran string string-conversion

Last synced: about 2 months ago
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speed comparison of Fortran internal read with Fortran calling C atoi() function

• Host: GitHub
• URL: https://github.com/beliavsky/fortran-calling-c-for-io
• Owner: Beliavsky
• Created: 2022-02-23T21:22:56.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2022-02-23T21:30:55.000Z (about 3 years ago)
• Last Synced: 2025-01-30T07:42:45.364Z (3 months ago)
• Topics: atoi, c, fortran, string, string-conversion
• Language: Fortran
• Homepage:
• Size: 2.93 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Fortran-calling-C-for-IO

speed comparison of Fortran internal read with Fortran calling C atoi() function

Sources are compiled with the -O3 option for gfortran and Intel Fortran on Windows.

Here are the run times in seconds

gfortran ifort source


12.770   3.549 xread_int.f90


14.456   2.949 xread_int_fmt.f90


 0.416   0.362 xatoi_loop.f90