SHC Software Stack Upgrade

Important Information for SHC Users

Over the next couple of days, more backend nodes from shc-a will be transitioned to shc-[c,new]’s cluster of backend nodes, running the new software stack. By Sept 4, there will be just 24 shc-a backend nodes, all the rest of the compute nodes will be running the new software stack, seen from shc-[new,c].

• Please port your codes to the new software environment if you’ve not already done so!
• Please report any porting problems you’re having; we’ll help asap.
• Details on how to rebuild your code for the new SHC environment can be found here
• Your MPI based code must be rebuilt for the new and improved shc software stack.

Preventive Maintenance on Sept 8 from 0800 to 1400 will encompass testing the complete transition of SHC compute and head node resources to the upgraded software stack environment. The fully upgraded production SHC cluster configuration will be two head nodes (shc-[a,b]) and 1180 Opteron compute node cores (163 dual cpu/dual core + 66 dual cpu/quad core).

Questions or concerns about the upgrade? Just let us know.