Hi, i have a problem when i compile a 3D transport model.
Untill now my colleagues used these flags to compile it with pgi 10:
-O2 -tp p6 -pc 64 -Kieee -Mdalign -Mextend -Mnoframe -byteswapio
and the code runs ok either on a 32 bit linux system or 64 bit.
I’m trying to compile it for newer processors in order to take advantage of their optimization options with the following flags:
-O2 -tp nehalem-64 -pc 64 -Kieee -Mdalign -Mextend -Mnoframe -byteswapio -mcmodel=medium
and after about 5-10 minutes of simulation the program exits with signal 11 error.
My processor is a last generation quad core i7, and i use Ubuntu x64 12.04 LTS
How is it possible not to get segmentation faults in 32bit builds and when i build and run for x64 to get such?