Huge matrix distributed unevenly on different processors!

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Huge matrix distributed unevenly on different processors!

Postby yafshar » Mon Feb 23, 2015 11:44 am

I have a huge matrix on the order of million times million elements size.
The matrix is being used in a time integration approach and on each processor I have some number of rows of the whole matrix.

For example the whole matrix is 1,000,000*1,000,000 using four processors
0 has 270,000 rows of the whole matrix
1 has 150,000 rows of the whole matrix
2 has 300,000 rows of the whole matrix
3 has 380,000 rows of the whole matrix

Am I able to use SCALAPACK to solve this problem? What approach should I take?
Should I send the information to other processors and make the size even?
yafshar
 
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