Sparse matrix data file
This matrix results from the linearisation of the discretisation of the Navier-Stokes type equations
on a sphere. The sytem of equations describes the thermohaline circulation in the world oceans.
The equations and the subsequent discretization are discribed in this
report.
The goal
is to calculate steady states and linear stability of the thermohaline circulation.
The size of this sample matrix is 6000. The size of the matrices we would like to work with is about 1.3e+5.
Details of the structure of the matrix can be viewed
here.
The matrix is described in a
file
that lists row, colomn and coefficient
for all non zero entries. A right hand side is also
available.
Alternatively files that list the beginning of each row
A.beg, the column number
A.jco and the coefficient
A.co are also available.
If the previous sample matrix was easy to solve, here is a slightly larger sample
matrix with a size of 10362
This matrix is described in a
file
that lists row, colomn and coefficient
for all non zero entries. A right hand side can be found
here.
And if you're still there, here is an even larger sample matrix with a
size of 24576.
This matrix is described in a
file
that lists row, colomn and coefficient
for all non zero entries. A corresponding right hand side is again
available.