[petsc-dev] fortran literals

Jeff Hammond jeff.science at gmail.com
Fri Sep 2 09:28:33 CDT 2016

I'm not away of any difference in *float* values in implementations since
Cray stopped doing 64b float in the 1990s (I may have the details wrong - I
just remember code that calls SGEMM when DGEMM is used otherwise).


On Thursday, September 1, 2016, William Gropp <wgropp at illinois.edu> wrote:

> This is true.  The meaning of integer values of kind is up to the
> implementation, and at least two choices are in use.
> Bill
> William Gropp
> Acting Director and Chief Scientist, NCSA
> Director, Parallel Computing Institute
> Thomas M. Siebel Chair in Computer Science
> University of Illinois Urbana-Champaign
> On Sep 1, 2016, at 6:15 PM, Blaise A Bourdin <bourdin at lsu.edu
> <javascript:_e(%7B%7D,'cvml','bourdin at lsu.edu');>> wrote:
> If I recall correctly, fortran does not mandate that
> "selected_real_kind(5)" means the same across compilers, so that hardcoding
> kind values may not be portable.

Jeff Hammond
jeff.science at gmail.com
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