pdgemm_ algorithm

Post here if you have a question about LAPACK or ScaLAPACK algorithm or data format

pdgemm_ algorithm

Postby mvairavan » Mon Dec 09, 2013 1:30 am

I have been using pdgemm_ scalapack function call for matrix multiplication. I am using square matrix and a square grid of processors.
And figured out that its calling PB_CpgemmAB function call, which says its "outer-product algorithm using the logical LCM hybrid algorithmic blocking technique".
Can anyone tell me whats the algorithm used in this call. Is it SUMMA or DIMMA ??

Posts: 1
Joined: Mon Dec 09, 2013 12:19 am

Re: pdgemm_ algorithm

Postby admin » Sat Jan 11, 2014 2:09 pm

PBLAS matrix multiplication (included in ScaLAPACK library) is based on the SUMMA algorithm.
Hope it helps
Site Admin
Posts: 616
Joined: Wed Dec 08, 2004 7:07 pm

Return to Algorithm / Data

Who is online

Users browsing this forum: No registered users and 2 guests