Problems with DEBUG = FALSE intel14

[adrianabossolasco]

Hi evryoneI write because I found a problem when I try to run cesm1_2_2, setting DEBUG = FALSE in env_build.xml.
Apparently when DEBUG = FALSE using the intel 14 compiler, in the Macros file the default option that is written is:ifeq ($(DEBUG), FALSE)
   FFLAGS += -O2
endif

When I use this in the model, the model crash, and doesn't give any clear error.

However if  I set in the Macros file:
ifeq ($(DEBUG), FALSE)
   FFLAGS += -O1
endifThis works, and of course the model run mach faster that in DEBUG True
It is ok if I leave the option -O1??
Someone can tell me which the difference between this two FFLAGS?
Thank you very mach
Adriana

 

[jedwards]

If you cannot compile with -O2 which is a very conservative optimization level it may indicate a problem in your code that should be addressed.   However intel 14 is a very old compiler which has been out of support for some 5 years now.   Please see if you have access to and can use a modern compiler - intel 17 or newer.