•
There will be a scheduled maintenance on Hexagon on June 16th starting from 9:00. We are expecting to finish on the evening of the same day. During this maintenance slot we are going to upgrade queue system and perform some extra tasks, including replacing IO card on the metadata server. Access to the machine will be closed and all running jobs will be terminated during this maintenance window. The queuing system has reservation in place so that the jobs which are not able to finish before the maintenance will not start. We are expecting that the idle jobs in the scheduler will not be affected. Update: 2015-06-16 09:15 - Scheduled maintenance has started. Update: 2015-06-16 23:48 - Maintenance has finished. We had to cleanup queue system from all jobs including idle and blocked. Please resubmit.

•
We have updated Cray compiler on the short notice. The main reason is that version 8.3.11 fixes this issue:
  • CCE/8.3.x gives wrong result for CPMD
Other bugs closed with CCE 8.3.11 release:
  • 818417 Request for support of array boundary checks on GPU
  • 819430 Bounds issue with ASSOCIATE
  • 823032 Compiler fails with OpenMP and named loop when optimisation is applied
  • 823076 CCE ICE with OpenACC code
  • 823268 CESM job hangs with CCE on XC30
  • 823328 CCE/8.3.x gives wrong result for CPMD
  • 823498 Reveal scopes OpenMP loop incorrectly UKMET-2558
  • 823694 Fortran compiler too restrictive on function prefix order
  • 823913 ICE - CALL with PDT and assumed length type parameters
  • 823929 Error ftn-521 introduced into CCE 8.3.8
  • 820220 unexpected floating point exception
  • 824408 assignment to complex var from parameter pair in a subroutine
  • 824557 Fortran compiler use association error
  • 825045 INTERNAL COMPILER ERROR: "Invalid construct" (v_mt_util_pdg.c v98357, line 797)

•
The following software have been removed from Hexagon:
  • trilinos 11.6.1.0 11.12.1.0
  • libsci 11.1.00 11.1.01 13.0.1
  • tpsl/cray-tpsl 1.2.01 1.3.01 1.3.02 1.3.03
  • petsc 3.2.02 3.4.3.0
  • MPT (cray-mpich2, cray-mpich, cray-shmem) 5.5.1 5.5.2 5.5.3 5.5.4 5.6.1 5.6.2 5.6.3 5.6.4 6.0.0 6.0.1 6.1.0 6.2.1 6.3.0
  • Cray Compiler (cce) 8.2.1 8.2.3 8.2.4 8.2.5 8.3.4 8.3.5 8.3.7
  • gcc 4.6.1 4.8.0 4.8.1
  • libsci (xt-libsci, cray-libsci) 11.1.00 12.1.01 12.1.2
  • perftools / perftools-lite 5.3.0 5.3.1 6.0.0 6.1.0 6.1.1 6.1.2 6.1.3
  • papi 4.2.0 5.1.0.2 5.1.1 5.2.0
  • cray-ga / ga 5.0.2 5.1.0 5.1.0.1 5.1.0.2 5.1.0.3 5.1.0.4

•
The following new versions of software and libraries were installed on Hexagon:
  • Cray Compiling Environment - CCE 8.3.10
  • Chapel - 1.11.0
  • Cray Performance Tools - Perftools 6.2.3, PAPI 5.4.0.1
  • Cray Message Passing Toolkit - MPT 7.2.0
  • Cray Debugging Support Tools - CDST 15.04 - ATP 1.8.1, CCDB 1.0.6, lgdb 2.4.2
  • Cray Scientific and Math Libraries - CSML 15.04 - PETSc 3.5.3.0, Trilinos 11.12.1.2, TPSL 1.4.4
  • Cray Environment Setup and Compiling support - CENV 15.04 - craypkg-gen 1.3.1, craype 2.3.0, cray-modules 3.2.10.3
Please find more details about Chapel here and other packages here. We will change default versions very soon to the ones from the previous PE install, a separate notice will come.

•
We have once in a while NFS timeouts on different login nodes, the user logged in experience them as a short hangs. This been going for some last week, but not that often. The last week it started to be very often and almost on all nodes. We've applied patch which is suppose to fix this issue. In order for changes to be picked up we need to restart Hexagon. Update 15:30: Hexagon is up again.