NWchem 6.1 with CCSDTQ and CCSDTLR

Hello,

Including these modules in the compilation of either 6.1 or 6.0 NWchem, produces this error:

Fatal compilation error: Out of memory asking for 8192.
compilation aborted for ccsdtq_lambda2_18_2.F (code 1)

for big .F files, like this one mentioned here. This happens when using ifort 11.0.x and 11.1.x version of the compilers with -O3. Using -O2 solves the problem for 11.1.x however not for 11.0.x. Using 12.1.x solves the problem completely even with -O3. ulimit -d is unlimited.

My question would be:
1) how could I lower the optimization flag for just those particular files which are too big?

2) how to keep the -O3 flag for 11.0.x compiler and still fix the problem?

3) use -O2 for 11.0.x and fix the problem?

I hope someone will have some more info on this. Thanks! regards.