-zero not working in l_fce_pc_8.1.023

friedrich · ‎12-19-2005

Hej,

I have problems with compiling my program with -zero. I have some uninitialized integers, and thought that compiling with -zero should initialize them to zero. At least it is working in a 32bit environment, but as soon as I switch to the 64bit environment, I got wrong results out of my program. Of course I could initialize all my integers.....but I would like to know if the -zero is really not working in the 64bit environment.

Any experiences?

Thanks a lot!

Message Edited by friedrich@fhi-berlin.mpg.de on 12-19-2005 04:44 AM

TimP · ‎12-19-2005

I believe this extension has been worked on, but I fail to see the reason for relying on this non-standard feature, or on such an old compiler.

friedrich · ‎12-19-2005

I tried l_fc_p_9.0.021.tar.gz 64bit environment, same problem here.

This tar-file is the latest version you get for free for non-commercial use....

Of course I could initialize all integers, the problem is that this programm written by many different people with about 1000 subroutines, and I want to be sure that I do not oversee something.

Message Edited by friedrich@fhi-berlin.mpg.de on 12-19-2005 07:22 AM

Steven_L_Intel1 · ‎12-19-2005

-zero is claimed to work with static, local, scalar variables only. Perhaps your variables are not among these?

In any event, I would encourage you to file a support request with Intel Premier Support and attach an example. Perhaps there is a compiler bug.

friedrich · ‎12-19-2005

Uups, that is something worth thinking about it......thanks for your help!