Conversion from CVF to IVF

[Intel_C_Intel]

Hi.

The company I work for recently updated our Fortran compiler from CVF 6.6 to IVF 8.1. I run IVF with MS Visual Studio 2003.NET, under Windows 2000. I had to convert two Fortran programs : a nonlinear programming solver and a software used to simulate flow behavior in a network. Both programs have no Windows interface : they run in a console.

Converting the solver went well. Converting the other software was quite a different challenge. I checked all options, comparing setups between CVF and IVF. The program runs well when compiled with CVF. With IVF, I can compile and link. The execution is in trouble. Weird characters appear, references to variables are lost. I added lines in the code (write (*.*) )to dump extra information in the console : the program crashed to another line somewhere in the code. I tried to debug the program : it crashed somewhere else...

I don't know what's wrong. Is there an option that can help correct this problem? As I mentioned, the program runs well using CVF 6.6. Since it is not supported anymore, we moved to IVF. There is a lot of included files containing common blocks shared between Fortran files...

Any idea? Thanks.

Francois

[Steven_L_Intel1]

The first thing I would recommend is making sure you're using a current compiler version - 8.1.025 is the latest.

The symptoms you describe sound like stack corruption. This can be caused by a mismatch of calling conventions, array bounds errors, argument mismatches, and other errors. If after your own debugging you can't solve it, please submit a case to Intel Premier Support and include everything needed to reproduce the problem - we'll be glad to look into it.

[Intel_C_Intel]

Thanks for your quick reply.

I downloaded w_fc_pc_8.1.025.exe on Febrary 1st. To be sure, I reinstalled it and recompiled everything. I still have the weird behavior.

I'll send a request to Intel Premier Support for help.

Francois