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Vahid_Jalili
Beginner
100 Views

PARDISO and DSS

Hi all,
I wanted to compare the LU factorization time done by DSS and PARDISO on a quad core Intel CPU in MS VS 2008. In PARDISO I have set the iparm(2)=3 to use parallel threads, however I am not seeing any acceleration in compare with DSS or even when iparm(2)=0 or 2.
If PARDIOS is faster than DSS? and if DSS is using parallel threads by default?
Thanks.
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4 Replies
ArturGuzik
Valued Contributor I
100 Views

Vahid,

you won't see any speed up bacause DSS is just a simplier interface to Pardiso. Core is the same.

A.
Gennady_F_Intel
Moderator
100 Views

exactly,DSS is just different, simplified interface which provides the same efficiency of calculations.
--Gennady
Vahid_Jalili
Beginner
100 Views

You mean both DSS and PARDISO are using all 4 cores of the quad core CPU by default? We don't need to set anything for this purpose, right?
Thank you.
Gennady_F_Intel
Moderator
100 Views

It depends of version of MKL you are using. For the latest (10.2 and 10.3) versions that's correct.
--Gennady
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