Developer Reference

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Sparse QR Routines

Sparse QR routines and their data types
Routine or function group
Data types
Description
 
Enables a pivot strategy for an ill-conditioned matrix.
s,d
Calculates the solution of a sparse system of linear equations using QR factorization.
 
Performs reordering and symbolic analysis of the matrix
A
.
s,d
Performs numerical factorization of the matrix
A
.
s,d
Solves the system
A
*
x
=
b
using QR factorization of the matrix
A
.
s,d
Performs
x
:=
Q
^(-1)*
b
.
s,d
Performs
x
:=
R
^(-1)*
b
.
The under determined systems of equations are not supported. The number of columns should be less or equal to the number or rows.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.