From: mullinwm AT picard DOT ml DOT wpafb DOT af DOT mil ("William M. Mullins") Subject: numerical errors in f2c -> gcc 20 Feb 1997 07:42:17 -0800 Approved: cygnus DOT gnu-win32 AT cygnus DOT com Distribution: cygnus Message-ID: <330C6A28.63A7.cygnus.gnu-win32@picard.ml.wpafb.af.mil> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 3.01Gold (WinNT; I) Original-To: gnu-win32 AT cygnus DOT com Original-Sender: owner-gnu-win32 AT cygnus DOT com b17.1 on NT4 f2c builds with no problems...installs without a hitch Numerical codes ported from sun and sgi type machines compile, link and run without a hitch. Almost all numerical results are slightly wrong (4-9th sig fig) when compared to the "test cases". Occasionally, when numerical second derivatives are used, the differences are very large (second sig fig). No fixes or workarounds have been found...very troubling No, this is not an old pentium machine. It is a micron P6-200 system, but all of our NT machines have shown the same problems. Some kind of answer is really needed or we will have to move back to the old suns. mullinwm AT picard DOT ml DOT wpafb DOT af DOT mil - For help on using this list, send a message to "gnu-win32-request AT cygnus DOT com" with one line of text: "help".