Binary Size

[fredericorama]

Hi!

Here at my work I am stuck with a problem... We have a bunch of fortran codes compiled with the ifort compiler for linux. When we try to compile a code in different user accounts, we get binaries with different sizes! For example, the user A and the user B have their accounts. The user A tries to compile the program test.f90 and the user B do the same. Both uses the same line to compile the program. Both get success when its done, but they get different results!

So, I would like to know from you what can be happening? Could be the environment variables that are configured in their accounts? Could be the version of the compiler?

I know that this question may depend on the system the we are working, but in a general way, what can be happening?

Does anybody have any clue?

[Ron_Green]

There are many things included in the header section of an executable (or object file). Timestamps, for instance, mean that there will be differences. Also, if you use -parallel or -openmp in the compilation, there will be path information in the headers to be used by Intel performance tools. You can disable this if you like:

http://software.intel.com/en-us/articles/how-to-prevent-source-code-full-path-location-information-from-being-visible-in-an-executable/

If you use the 12.0 Composer XE 2011 compiler and -parallel-source-info- option, I would not expect too large of a difference.

ron