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Poor performance solving sparse linear system of equations

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tienhung
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Re: Poor performance solving sparse linear system of equatio

Fri Oct 30, 2015 11:33 am
rmoraes wrote:Now I tried to solve the system in a newer hardware (I7-5600U 2.6 GHz), compiling with Intel (Intel Parallel Studio Composer 2015 XE Update 5), but it still takes 4s to solve the system using SparseLU solver. This is more or less in accordance with what tienhung reported previously.

I wonder if ggael has some other settings for running this test system I should be aware of...

I am now considering to give UmfPack a try, but I cannot find any instructions on how to compile sparsesuite on Windows...

Could someone please provide me with the instructions?

Thanks!


For UmfPack under Windows, you can compile SuiteSparse from here:
https://github.com/jlblancoc/suitespars ... or-windows

If you are using Linux, just download the original SuiteSparse from its website and follow the guide attached in the package.
rmoraes
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Re: Poor performance solving sparse linear system of equatio  Topic is solved

Thu Mar 03, 2016 10:41 pm
The best performance I was able to get under Windows was using Umfpack, which now gives me a similar performance to what ggael reported as the LU solver performance. Based on ggael and tienhung (who has similar times as I do) comments, apparently the poorer performance might be related to the OS.

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