What is the difference betwixt LAPACK and SCALAPACK?

Questions regarding the compilation of VASP on various platforms: hardware, compilers and libraries, etc.


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dyc_2008
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What is the difference betwixt LAPACK and SCALAPACK?

#1 Post by dyc_2008 » Sat May 26, 2012 11:41 am

hi everyone

I have compiled VASP successfully just by commenting out SCALAPACK.
but I do not understand the difference betwixt LAPACK and SCALAPACK

thank you so much
Last edited by dyc_2008 on Sat May 26, 2012 11:41 am, edited 1 time in total.

andypea

What is the difference betwixt LAPACK and SCALAPACK?

#2 Post by andypea » Tue Jul 24, 2012 2:41 am

SCALAPACK stands for Scalable LAPACK. It should scale better when running large jobs across distributed memory systems, such as a cluster of machines connected via ethernet.

If all your jobs run on a single machine you can safely ignore SCALAPACK.
Last edited by andypea on Tue Jul 24, 2012 2:41 am, edited 1 time in total.

elina5237

What is the difference betwixt LAPACK and SCALAPACK?

#3 Post by elina5237 » Wed Sep 05, 2012 11:09 am

SCALAPACK stands for Scalable LAPACK. It should scale better when running large jobs across distributed memory systems, such as a cluster of machines connected via ethernet.



Abercrombie Brussel
Last edited by elina5237 on Wed Sep 05, 2012 11:09 am, edited 1 time in total.

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