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- Solve Ax=b, where A is diagonal matrix

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Ngu_Soon_Hui

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12-01-2010
01:17 AM

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Solve Ax=b, where A is diagonal matrix

1 Solution

jonathandursi

Novice

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12-01-2010
05:24 AM

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Alexander_K_Intel2

Employee

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12-01-2010
01:23 AM

129 Views

Your matrix is sparse so try to use PARDISO solver. Format for diagonal matrix is pretty simple (more detailes could be found in Intel Math Kernel Library ReferenceManual, Chapter 8)

With best regards,

Alexander Kalinkin

Ngu_Soon_Hui

Beginner

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12-01-2010
01:33 AM

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Thanks alex.

I am aware that Pardiso is a choice.

But let's say if I am insisting on using LAPACK?

Alexander_K_Intel2

Employee

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12-01-2010
01:40 AM

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If you really want to use LAPACK for solving system of equation with diagonal matrix usebanded format for storing it.

With best regards,

Alexander Kalinkin

jonathandursi

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12-01-2010
05:24 AM

130 Views

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