Initial population
Salvatore Filippone
18 years ago
parent
64d4e354bb
commit
4acd3635ec
@ -0,0 +1,130 @@
|
||||
This directory contains the PSBLAS library, version 2.1.0
|
||||
|
||||
|
||||
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.
|
||||
|
||||
PLATFORMS:
|
||||
|
||||
The compilation process relies on the choice of an appropriate
|
||||
Make.inc file; we have tested with AIX XLF, Intel ifc/Linux, Lahey
|
||||
F95/Linux, Nag f95/Linux, GNU Fortran/Linux. If you succeed in compiling with
|
||||
other compiler/operating systems please let us know.
|
||||
|
||||
|
||||
LINUX:
|
||||
|
||||
There finally exist a GNU Fortran 95 implementation: we are using the
|
||||
development snapshots from GCC 3.5.0, later 4.1 and 4.2 since July
|
||||
2004, and it appears to work. The 4.2 version of GNU compilers is now
|
||||
our reference platform; the official 4.2.0 release is due pretty
|
||||
soon. It now includes support for ALLOCATABLES.
|
||||
|
||||
|
||||
The Lahey version we got access to (6.0 and 6.1) seems to suffer from
|
||||
spurious extra copies problem; this is most apparent in the matrix
|
||||
build process.
|
||||
|
||||
For the Intel compilers, we recommend moving to version 9; previous
|
||||
versions of the library have been compiled with version 7 and 8 of
|
||||
ifort.
|
||||
|
||||
IBM SP.
|
||||
The library has been tested on an IBM SP2, SP4 and SP5, with XLC and XLF
|
||||
compilers, and a version of the BLACS based on MPI.
|
||||
The setting
|
||||
F90=xlf90 -qsuffix=f=f90
|
||||
in Make.inc.rs6k takes care of the f90 extension.
|
||||
WARNING: xlf 8.1 introduced a performance bug, whereas a Fortan 90
|
||||
code calling a Fortan 77 code would incur spurious array copies;
|
||||
please make sure your system has the PTF xlf 8102 installed.
|
||||
|
||||
|
||||
|
||||
UTILITIES
|
||||
The TEST/Fileread directory contains some utilities to convert to/from
|
||||
Harwell-Boeing and MatrixMarket file formats.
|
||||
|
||||
|
||||
DOCUMENTATION
|
||||
|
||||
See userguide.pdf
|
||||
Please consult the sample programs, especially TEST/pargen/ppde90.f90.
|
||||
|
||||
|
||||
OTHER SOFTWARE CREDITS
|
||||
|
||||
We include our modified implementation of some of the Sparker (serial
|
||||
sparse BLAS) material, e.g. Jagged diagonal, plus a number of
|
||||
extensions of our own design. The original file spblas.f can be
|
||||
downloaded from matisa.cc.rl.ac.uk; of course any bugs in our
|
||||
implementation are our own to fix. The main reference for the serial
|
||||
sparse BLAS is:
|
||||
Duff, I., Marrone, M., Radicati, G., and Vittoli, C.
|
||||
Level 3 basic linear algebra subprograms for sparse matrices: a user
|
||||
level interface
|
||||
ACM Trans. Math. Softw., 23(3), 379-401, 1997.
|
||||
|
||||
In the multilevel preconditioners we use SMMP by Randolph E. Bank and
|
||||
Craig C. Douglas na.bank@na-net.ornl.gov and
|
||||
na.cdouglas@na-net.ornl.gov; we wrapped it in a Fortran 95 interface
|
||||
with dynamic memory allocation.
|
||||
|
||||
To compile and run our software you will need
|
||||
|
||||
1. A working version of MPI
|
||||
|
||||
2. The MPI version of the BLACS from
|
||||
http://www.netlib.org/blacs/index.html
|
||||
|
||||
3. A version of the BLAS; if you don't have a specific version for
|
||||
your platform you may try ATLAS available from
|
||||
http://math-atlas.sourceforge.net/
|
||||
|
||||
4. We have had good results with the METIS library, from
|
||||
http://www-users.cs.umn.edu/~karypis/metis/metis/main.html
|
||||
This is not necessary to compile our library, but the test program
|
||||
in test/Fileread assumes you have it installed.
|
||||
|
||||
5. For our preconditioners we include interfaces to the following
|
||||
software packages:
|
||||
-- SuperLU 3.0 http://crd.lbl.gov/~xiaoye/SuperLU/
|
||||
-- UMFPACK 4.4 http://www.cise.ufl.edu/research/sparse/umfpack/
|
||||
These are optional, you only need to install them if you actually
|
||||
want to use them.
|
||||
|
||||
|
||||
TODO:
|
||||
- As soon as TR 15581 and MOVE_ALLOC become available in GNU Fortran
|
||||
we shall move from POINTERS to ALLOCATABLE for both vectors and
|
||||
derived data types components.
|
||||
- The GLOB_TO_LOC array should be changed for large test cases.
|
||||
|
||||
|
||||
The PSBLAS team.
|
||||
|
||||
|
||||
Contact: Salvatore Filippone salvatore.filippone@uniroma2.it
|
||||
|
||||
Credits for version 2.0:
|
||||
Salvatore Filippone
|
||||
Alfredo Buttari
|
||||
|
||||
The MD2P4 multilevel parallel preconditioners contained in directory
|
||||
src/prec were developed with the contribution of:
|
||||
Pasqua D'Ambra
|
||||
Daniela di Serafino
|
||||
They are still in an early experimental stage, use at your own risk!
|
||||
|
||||
Credits for version 1.0:
|
||||
Salvatore Filippone
|
||||
Michele Colajanni
|
||||
Fabio Cerioni
|
||||
Stefano Maiolatesi
|
||||
Dario Pascucci
|
||||
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue