About static linking Intel MKL libraries

About static linking Intel MKL libraries

yuriisig's picture
yuriisig
Tue, 04/26/2011 - 02:15

At me it is installed Red Hat 6.0 (x86-64). I do static linking.

For example (actually at me thousand functions):

ifort myprog.f -L$MKLPATH -I$MKLINCLUDE
-Wl,--start-group $MKLPATH/libmkl_intel_ilp64.a $MKLPATH/libmkl_intel_thread.a
$MKLPATH/libmkl_core.a -Wl,--end-group -liomp5 -lpthread

I receive an error: It is not found -lpthread.

If not to use -lpthread translation comes to an end successfully.

Legendary intelligence officer Drozdov was nicknamed «Fabergé» owing to his unique capability to work with information, to get information, and to convert it into the most precious treasures.
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Victor Pasko (Intel)'s picture
Victor Pasko (Intel)
Tue, 04/26/2011 - 04:45

Hi,

You know some OSes has no static libpthread library.
So, please use additional option -Bdynamic before -lpthread

Thanks, -- Victor
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yuriisig's picture
yuriisig
Tue, 04/26/2011 - 07:31

Victor,

Thanks.
My program is compiled approximately 2 hours. All is good.
I use mine MKL (I work with the packed matrixes and my algorithms much faster, than in Intel MKL, but some functions I take from Intel MKL. As a whole this software package very good).

--Yurii

Legendary intelligence officer Drozdov was nicknamed «Fabergé» owing to his unique capability to work with information, to get information, and to convert it into the most precious treasures.
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Danesh Daroui's picture
Danesh Daroui
Thu, 04/28/2011 - 09:38

I guess it is recommended to use dynamic linking instead of static linking because of the performance issues. After all, you will have smaller code with probably better performance if you use dynamic linking.

Good luck,

D.

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yuriisig's picture
yuriisig
Thu, 04/28/2011 - 10:11

At first, speed of the account is approximately identical.
Secondly, it is necessary for transfer of programs on other computers.

Legendary intelligence officer Drozdov was nicknamed «Fabergé» owing to his unique capability to work with information, to get information, and to convert it into the most precious treasures.
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TimP (Intel)'s picture
TimP (Intel)
Thu, 04/28/2011 - 10:20

You can't expect an application which uses libpthread to run on another machine which doesn't have a compatible glibc installation, so there's no point in linking it static.

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yuriisig's picture
yuriisig
Thu, 04/28/2011 - 10:42

I know it. I pursued absolutely other aims.

Legendary intelligence officer Drozdov was nicknamed «Fabergé» owing to his unique capability to work with information, to get information, and to convert it into the most precious treasures.
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