[Beowulf] cursed (and perhaps blessed) Intel microcode

[Mikhail Kuzminsky]

In message from Mark Hahn <hahn at mcmaster.ca> (Fri, 23 Mar 2018 
16:02:12 -0400 (EDT)):
> There *is* an updated microcode data file:
> https://downloadcenter.intel.com/product/873/Processors
> which seems to correspond to the document above

How I believe, it's for correction of general defect practically for 
all CPUs.
Then microcode update may give also decrease of performance. May be 
Intel have idea to improve this update and do not recommend use this 
version ?

Mikhail Kuzminsky
Zelinsky Institute of Organic Chemistry
Moscow