You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
115 lines
3.4 KiB
Plaintext
115 lines
3.4 KiB
Plaintext
WHAT'S NEW
|
|
|
|
|
|
Version 3.5.
|
|
1. New Krylov methods methods FCG and GCR are now available.
|
|
2. Existing codes will work untouched with version 3.5, but they
|
|
will have to be recompiled; new methods have been added for the
|
|
sake of GPU computations, plus the usual bunch of bug fixes.
|
|
3. An experimental C interface is available; this is neither
|
|
complete nor fully documented, feedback welcome.
|
|
|
|
|
|
|
|
Version 3.
|
|
This version requires a working Fortran 2003 compiler; we do not use
|
|
all of the language features (specifically, so far we did not employ
|
|
FINAL subroutines), but the features we use were sufficient in
|
|
identifying bugs in ALL compilers we tried (all the bugs have been
|
|
reported and mostly fixed by the respective vendors).
|
|
|
|
|
|
The new internals have been completely overhauled, and in many cases
|
|
rewritten; they now enable a much better interfacing with user-defined
|
|
storage formats. If the user is only interested in the predefined
|
|
formats, then the user's guide should be sufficient; what is somewhat
|
|
lacking is documentation on how to add to the library, i.e. a
|
|
developers' guide; stay tuned.
|
|
|
|
|
|
|
|
The architecture of the Fortran 2003 sparse BLAS is described in
|
|
S. Filippone, A. Buttari:
|
|
Object-Oriented Techniques for Sparse Matrix Computations in Fortran
|
|
2003,
|
|
ACM Trans. on Math. Software, vol. 38, No. 4, 2012.
|
|
|
|
The ideas are explored further with the paper:
|
|
|
|
V. Cardellini, S. Filippone and D. Rouson
|
|
Design Patterns for sparse-matrix computations on
|
|
hybrid CPU/GPU platforms,
|
|
Scientific Programming, 22(2014), pp.1-19.
|
|
|
|
|
|
Version 1.0 of the library was described in:
|
|
S. Filippone, M. Colajanni
|
|
PSBLAS: A library for parallel linear algebra computation on sparse matrices
|
|
ACM Trans. on Math. Software, 26(4), Dec. 2000, pp. 527-550.
|
|
|
|
|
|
|
|
|
|
COMPILER NOTES.
|
|
|
|
This code is confirmed to work with the following compilers (or
|
|
later versions thereof):
|
|
NAGware 5.2;
|
|
GNU 4.7.3;
|
|
Cray CCE 8.0.1;
|
|
|
|
They are all recognized by the configure script.
|
|
|
|
To make the script work with the Cray CCE environment, it is
|
|
recommended to use the following:
|
|
./configure FC=ftn F77=ftn CC=cc MPF90=ftn MPF77=ftn MPCC=cc
|
|
with both CCE and GNU lower-level compilers.
|
|
|
|
For the GNU compilers 4.6.x we are aware of a number of memory management
|
|
issues that might surface in your applications; most of them (that
|
|
we're aware of) are solved in version 4.7.2 or later.
|
|
|
|
The Intel compiler up to version 12.1 fails to compile, as of the last
|
|
version we got access to.
|
|
|
|
|
|
KNOWN ISSUES.
|
|
|
|
An annoying problem exists with some versions of MPI: if the configure
|
|
script sets -DMPI_MOD the MPI call interfaces will be resolved by
|
|
using the MPI Fortran module.
|
|
However usage of the module may cause compilation to fail when
|
|
coupled with the debugging option -g, because the compiler complains
|
|
that it cannot find a matching interface for some of the
|
|
communication routines.
|
|
The solution: either take out the -g option, or, if you really need to
|
|
debug, edit Make.inc to force -DMPI_H in place of -DMPI_MOD.
|
|
|
|
|
|
|
|
The PSBLAS team.
|
|
|
|
RELATED SOFTWARE
|
|
|
|
If you are looking for more sophisticated preconditioners, you may be
|
|
interested in the package MLD2P4 from http://github.com/sfilippone/mld2p4-2
|
|
|
|
|
|
Contact: https://github.com/sfilippone/psblas3
|
|
|
|
Contributors
|
|
Salvatore Filippone
|
|
Alfredo Buttari
|
|
Soren Rasmussen
|
|
Ambra Abdullahi Hassan
|
|
Pasqua D'Ambra
|
|
Daniela di Serafino
|
|
Michele Martone
|
|
Michele Colajanni
|
|
Fabio Cerioni
|
|
Stefano Maiolatesi
|
|
Dario Pascucci
|
|
|
|
|
|
|