I'm not away of any difference in *float*<span></span> 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).<div><br></div><div>Jörg <br><br>On Thursday, September 1, 2016, William Gropp <<a href="mailto:wgropp@illinois.edu">wgropp@illinois.edu</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">This is true. The meaning of integer values of kind is up to the implementation, and at least two choices are in use.<div><br></div><div>Bill</div><div><br><div>
<div style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">William Gropp<br>Acting Director and Chief Scientist, NCSA</div><div style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">Director, Parallel Computing Institute<br>Thomas M. Siebel Chair in Computer Science<br>University of Illinois Urbana-Champaign<br><br><br><br><br></div>
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<br><div><div>On Sep 1, 2016, at 6:15 PM, Blaise A Bourdin <<a href="javascript:_e(%7B%7D,'cvml','bourdin@lsu.edu');" target="_blank">bourdin@lsu.edu</a>> wrote:</div><br><blockquote type="cite"><span style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;float:none;display:inline!important">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.</span></blockquote></div><br></div></div></blockquote></div><br><br>-- <br>Jeff Hammond<br><a href="mailto:jeff.science@gmail.com" target="_blank">jeff.science@gmail.com</a><br><a href="http://jeffhammond.github.io/" target="_blank">http://jeffhammond.github.io/</a><br>