Different between 11.0 and 12.1

[GHui]

I have a project compiled with ifort-11.0. These days I have transplant it to ifort-12.1. But when I run it, it went wrong. And show "forrtl: severe (173) ...". How can I understand this? And when I debug it with gdb. Gdb exit.

[Steven_L_Intel1]

Error 173 is "A pointer passed to DEALLOCATE points to an array that cannot be deallocated". You can debug using idb and add -traceback to the compile to get source and line information that may help you find the error.

[GHui]

Why 11.0 can do, but 12.1 cann't?

[GHui]

Is there any way to ignorethis different?

[Steven_L_Intel1]

No - you have a bug in your program that needs to be fixed.

[GHui]

I used idb to debug my program. The idb output box show "Cannot run thread, error #COULDNT_READ_REGISTER_VALUE". And I reboot system, and then it worked ok. If don't reboot system, how to fix this problem?

[Steven_L_Intel1]

My guess is that you have some part of the program writing memory where it shouldn't, or an uninitilized variable is being used. The first thing I would suggest is to rebuild the program with "-warn interface -C" and see if any errors are reported.

My guess is that a debug version won't show the problem, but at least try building with -traceback to see if you can identify where in the code it is failing. Analysis using the Static Analysis feature of Intel Fortran Studio or Intel Parallel Studio XE could also be helpful.