The NIST Sparse BLAS (v. 0.9)
Performance Studies on the IBM RS6000 Model 590
Sparse BLAS Homepage
The test matrices used in the following tests were generated
by reading sparsity patterns from HarwellBoeing
files, and using these patterns as the block structure for a matrix
of given blocksize. The results shown are for MatrixVector and
MatrixMatrix multiplications only, rather than a full DAXPY, since
we are interested in the efficiency of the sparse code.
Source code for the performance testers is
available from the authors.
The current test results are for the following matrix patterns:

IMPCOL C (137 by 137, 411 nonzeros) Ethylene plant model

WEST0156 (156 by 156, 371 nonzeros) Simple chemical plant model

GRE 115 (115 by 115, 421 nonzeros)
The experimental parameters are blocksize and number of righthandsides.
We present results of testing on a Sun Sparc 20 and an IBM RS6000.
Each data point represents the average result of 4 runs with the same parameters.
Performance of NIST Sparse BLAS on an IBM RS6000:
IMPCOL_C
1 righthandside
10 righthandsides
WEST0156
1 righthandside
10 righthandsides
GRE 115
1 righthandside
10 righthandsides
Source code for performance testers:
Last updated: July 25, 1996 by
KAR.