Intel® Fortran Compiler
Build applications that can scale for the future with optimized code designed for Intel® Xeon® and compatible processors.
29276 Discussions

Is the compilation result of exactly the same code the same under different versions of software?

Bryan_Y
Beginner
‎07-21-2025 01:53 AM
904 Views

Is the compilation result of exactly the same code the same under different versions of software? For example

# Quartus II
# Version 10.1 Build 197 01/19/2011 Service Pack 1 SJ Full Version

and

# Quartus II
# Version 10.1 Build 15311/19/2010 Service Pack 1 SJ Full Version.

0 Kudos

Link Copied

1 Reply
Steve_Lionel
Honored Contributor III
‎07-21-2025 04:46 AM
879 Views

Since you aren't showing what is supposedly different, and I have no idea what Quartus is, I'll just direct you to Improving Numerical Reproducibility in C/C++/Fortran

0 Kudos
Copy link
Reply

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.