[ET Trac] [Einstein Toolkit] #1674: Switch to OpenBLAS

[Einstein Toolkit]

#1674: Switch to OpenBLAS
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  Reporter:  eschnett     |       Owner:                     
      Type:  enhancement  |      Status:  review             
  Priority:  major        |   Milestone:                     
 Component:  Other        |     Version:  development version
Resolution:               |    Keywords:                     
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Comment (by knarf):

 Simple isn't so much the problem. Building OpenBLAS is (hopefully) also
 simple. It requires build-time and disk space, and it is not clear whether
 it actually gives the user a benefit. In order to know that we would need
 to test the alternative, and we argued that this is too much hassle.

 The question is more like: What is more important to you: an uncertain
 performance benefit (OpenBlas vs. others), or a certain build-time and
 -space benefit (of using installed libraries)? That is hard to answer
 given the (un)available information, and also depends on the use case. I
 rarely need a fast Lapack, and even if I do, the installed Atlas has been
 good enough so far. I don't know if OpenBlas would be faster in my
 particular case. I never had (and still don't have) a reason to try.

-- 
Ticket URL: <https://trac.einsteintoolkit.org/ticket/1674#comment:19>
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