The following software and libraries have been updated on hexagon:

MPI
xt-mpt 4.1.1 -> 5.0.0
MPI 2.2 compliance, except Dynamic Process Management

Compilers
PGI 10.4 -> 10.5
GCC 4.4.3 -> 4.4.4
xt-asyncpe 3.9 -> 4.0
java (security update) jdk1.6.0_20


Math/libs

xt-libsci 10.4.4 -> 10.4.5

LibSci 10.4.5 includes minor increases in functionality/support
of distributed CRAFFT routines. The enhancement improves the
coverage of 2d and 3d FFT routines by allowing real type work
arrays and input arguments for all transform types.

CRAFFT offers a simpler interface to improve application developer
productivity. In some cases the distributed CRAFFT 2.1 transforms
exhibit up to 10% speedup over comparable FFTW2 distributed
transforms.

Users requiring more information on usage should see the
intro_crafft manpage.


PETSc 3.0.0.10 -> 3.1.00

This new version of PETSc includes several changes including
performance enhancements of the sparse kernels used in the
incomplete LU preconditioning for AIJ and BAIJ matrix formats.
In Cray PETSc, these new kernels are further improved through
the new routines from Cray Adaptive Sparse Kernels (CASK).
In addition, the latest SuperLU-4.0 is included in this new
PETSc product.

More detailed information about the official PETSc-3.1 release is
available at
http://www.mcs.anl.gov/petsc/petsc-as/documentation/changes/31.html
SuperLU-4.0 information can be found at
http://crd.lbl.gov/~xiaoye/SuperLU/#superlu