I load gcc because the base g++ installed in the system is 4.8.5 and I need 5.1 or higher according to this error message:
CMake Error at cmake/FindLibStdCpp.cmake:119 (message):
Found g++ at /usr/bin/g++. Its version is 4.8.5. GROMACS requires at
least version 5.1. Please specify a different g++ using
GMX_GPLUSPLUS_PATH, PATH or CMAKE_PREFIX_PATH.
Call Stack (most recent call first):
Loading both has always taken care of the of that error message for gmx on CPU. I guess the proper thing to do is get the sysadmin to upgrade the base/core gcc that is installed.
Thanks for the reference. My student simultaneously found the same issue I think we are making progress now.