Default Intel compiler module changed from 16.0.3 to 17.4 due to OS incompatibility

An unanticipated incompatibility between the updated operating system version installed on Summit (Red Hat Enterprise Linux 7.3) and the default Intel compiler version, 16.0.3. This incompatibility was announced by Intel 18 January 2017, and covers the entirety of the Intel Compiler version 16.

To address this incompatibility, we have switched the default Intel compiler module from 16.0.3 to 17.4. Many, but not necessarily all, modules from the 16.0.3 stack are already available in the 17.4 stack. If you require a module that is not available after loading `intel/17.4`, please contact

If you typically load the `intel` module without specifying a version, you will begin using `intel/17.4` by default the next time you log in, or the next time a job starts. (Running jobs will likely not switch.) If you typically load `intel/16.0.3` explicitly, we strongly recommend you update your scripts to load `intel/17.4` in stead.

We apologise for this unanticipated interruption and change. Our thanks go to the users who notified us of the "segmentation fault" errors and other strange library dependency errors. We'll reach-out to specific reporters after this.

Thu, 07 Sep 2017 -0600