Date: Mon, 8 Nov 1999 17:28:44 +0100 (CET) From: Ronald Wahl Sender: Ronald DOT Wahl AT Informatik DOT TU-Chemnitz DOT DE To: pgcc AT delorie DOT com Subject: Re: pgcc-2.95.2: strange nbench results In-Reply-To: <19991103022858.I9319@cerebro.laendle> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Reply-To: pgcc AT delorie DOT com X-Mailing-List: pgcc AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk On Wed, 3 Nov 1999, Marc Lehmann wrote: > On Tue, Nov 02, 1999 at 02:49:05AM +0100, Ronald Wahl wrote: > > Iiiih, 'n gmx-er. Was ist daran so schlimm? Ich benutz GMX ja auch nur als Forwarder... > > moin, > > Iiih, 'n Norddeutscher ;-> Nee, Sachse. ;-) > > just run nbench-byte-2.1 compiled with pgcc-2.95.2 (-mk6 -O6 -ffast-math > > -funroll-all-loops). Look especially at the neural net bench: > > I think this is a large improvement.. IIRC, nbench always segfaulted on the > neural net test, now it only gives a wrong result ;-> Not always... Last version was ok (at least with -mk6). > Seriously, this is probably a bug in pgcc, although (having inspected the > test some times) it's not clear to me wether the compiler isn't allowed to > just optimize it away... Hmm, I hope this doesn't affect other applications... ron -- /\/\ Ronald Wahl -- rwahl AT gmx DOT net /\/\ C S N /\/\ \/\/ ------------------------------- \/\/ ---------------------- \/\/ /\/\ http://www.tu-chemnitz.de/~row/ /\/\ network administration /\/\ \/\/ PGP key available \/\/ system management \/\/