[Pw_forum] One minor bug, one not minor and two questions

Paolo Giannozzi giannozz at democritos.it
Tue Apr 12 15:55:53 CEST 2011

On Sun, 2011-04-10 at 16:13 -0500, Laurence Marks wrote:

> Another quick one: line 1766 of install/configure.ac nulls out
> scalapack_libs and the lines below look like they are special tests,
> which seems to be inconsistent with line 150 and standard protocols of
> letting the user define input variables.

very likely so. The problem is that scalapack is typically available 
on large parallel machines. It is not obvious to have access to more
than a few of them, and each machine seems to have a different idea 
on where scalapack should be. The present status of configure.ac is
the results of trial and error attempts on a few machines. With so much
variety and so few people daring to look inside configure.ac, it is not
obvious how to set up a better and more general scalapack test. 
Suggestions are most welcome (and not only on scalapack)

Paolo Giannozzi, IOM-Democritos and University of Udine, Italy

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