Index of /research/sparse/mat/IBM_EDA

      Name                    Last modified       Size  Description


[DIR] Parent Directory        02-Nov-2009 14:42      -  
[   ] ckt11752_dc_1.mat       06-Sep-2008 08:27   1.3M  
[   ] ckt11752_tr_0.mat       06-Sep-2008 08:27   1.5M  
[   ] dc1.mat                 06-Sep-2008 07:36   2.6M  
[   ] dc2.mat                 06-Sep-2008 07:37   3.9M  
[   ] dc3.mat                 06-Sep-2008 07:37   4.2M  
[   ] trans4.mat              06-Sep-2008 07:37   3.9M  
[   ] trans5.mat              06-Sep-2008 07:37   3.8M  

Circuit simulation matrices from Tim Lehner, IBM EDA.
Added March, 2006.

The dc* matrices are DC operating point problems, and the trans* matrices
are transient simluations.  All come from the same circuit.  As in most
circuit matrices, these matrices are permutable into block triangular form,
and the also have a few dense rows/columns (normally from voltage and
current sources).

Tim Lehner
Circuit Simulation, EDA
IBM Systems and Technology Group
USmail: IBM Corporation, M/S 2A1, Bldg 334, 2070 Route 52, Hopewell
Junction, NY 12533