Caltech Center for Advanced Computing Research » Posts for tag 'SHC'

Cellcenter & SHC users: Compiler Changes

Cellcenter and SHC users now have access to the Intel Cluster Toolkit 3.2, including the compiler suite v 11.1. We have a two-seat license. “use intel” will this package into your environment. More Information about the Intel Cluster Toolkit

Pathscale compilers are being retired Feb 25, 2010. Users are encouraged to rebuild their codes using Intel, PGI, or gnu compilers. Specifically, these pathscale based packages will retire Feb 25:

  • pathscale (alias for pathscale 3.2)
  • pathscale_[3.1,3.2]
  • openmpi_1.3.3_pathscale
  • openmpi_1.3.3_pathscale_3.2
  • openmpi_1.3.4_pathscale
  • openmpi_1.4_pathscale
  • openmpi_pathscale (alias for openmpi_1.3.3_pathscale_3.2)

Additional packages that will be retiring on Feb 25, due to bug fixes and newer release compatible offerings:

  • openmpi_1.3.2 (alias for openmpi_1.3.2_gcc)
  • openmpi_1.3.2_gcc
  • openmpi_1.3.4_gcc
  • openmpi_1.3.4_intel
  • openmpi_1.3.4_pgi
  • pgi_8.0
  • tecplot-2006r2
  • tecplot-2009r1
  • totalview_8.6

SHC Software Stack Upgrade – Update

Important Information for SHC Users

As of Sept 8, 2009, SHC has been transitioned to the new sw stack (RHEL+OpenIB). There are currently 115 core4 nodes and 65 core8 nodes, in production. For more information, please visit the SHC Getting Started / System Guide.

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.

SHC back in production mode

Thanks to SHC users for your patience during Preventive Maintenance on the InfiniBand chassis and associated infrastructure. Any questions, comments, or concerns should be addressed to:

SHC Preventive Maintenance Notice

CACR’s Shared Heterogeneous Cluster (SHC) will take extended Preventive Maintenance in the near future to address issues with the InfiniBand switch – the fast interconnect fabric for the cluster.

Downtime is scheduled for Monday, June 29, 8AM through Tuesday, June 30, 12 noon to deploy a new switch chassis. After this major hardware upgrade/repair, the cluster will be much more serviceable and will be operating with optimal communications.

SHC user questions or concerns are welcome, please contact: